International Journal of Thermofluids最新文献

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Mapping the evolution of passive thermal control in spacecraft: A bibliometric analysis 测绘航天器被动热控制的演变:文献计量学分析
International Journal of Thermofluids Pub Date : 2026-05-01 Epub Date: 2026-04-23 DOI: 10.1016/j.ijft.2026.101628
Reem Almehisni , Alia Alblooshi , Maryam Nooman AlMallahi , Bobby Mathew , Mahmoud Elgendi
{"title":"Mapping the evolution of passive thermal control in spacecraft: A bibliometric analysis","authors":"Reem Almehisni ,&nbsp;Alia Alblooshi ,&nbsp;Maryam Nooman AlMallahi ,&nbsp;Bobby Mathew ,&nbsp;Mahmoud Elgendi","doi":"10.1016/j.ijft.2026.101628","DOIUrl":"10.1016/j.ijft.2026.101628","url":null,"abstract":"<div><div>Thermal control is essential for spacecraft operation, ensuring functionality in extreme space environments. This study presents a comprehensive bibliometric analysis of global research on spacecraft thermal control from 2010 to 2025. A total of 293 documents were selected from the Scopus database with an emphasis on passive thermal control technologies. A detailed examination of publication trends, key contributors, influential authors, keyword dynamics, and highly cited documents was presented. The findings showed a fluctuation in publications, peaking in 2022, with the United States, China, and Canada leading in citations. Conference papers accounted for 56% of the publications, highlighting the accelerated pace of knowledge in this field. Acta Astronautica has received 473 citations, whereas Solar Energy Materials and Solar Cells have 367 citations. Notably, advanced radiator technologies, especially adaptive radiator solutions, dominate highly cited documents, indicating a shift toward innovative thermal management approaches. This trend highlights a growing focus on thermal control solutions for limited radiator space and extreme temperature fluctuations, enabling longer, more complex missions. This study provides foundational insights into research trajectories and emerging priorities in passive spacecraft thermal control, guiding future advancements to enhance resilience in diverse and challenging environments. Future research is expected to focus on optimizing the performance of variable-emissivity radiators and validating these technologies through flight demonstrations to gain heritage and increase their technology readiness level.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"33 ","pages":"Article 101628"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exact analysis of unsteady hybrid nanofluid past an infinitely oscillating vertical plate under the impact of thermal radiation 非定常混合纳米流体在热辐射作用下通过无限振荡垂直板的精确分析
International Journal of Thermofluids Pub Date : 2026-05-01 Epub Date: 2026-04-17 DOI: 10.1016/j.ijft.2026.101624
Dibya Jyoti Saikia , Rajdeep Bordoloi , Samad Noeiaghdam
{"title":"Exact analysis of unsteady hybrid nanofluid past an infinitely oscillating vertical plate under the impact of thermal radiation","authors":"Dibya Jyoti Saikia ,&nbsp;Rajdeep Bordoloi ,&nbsp;Samad Noeiaghdam","doi":"10.1016/j.ijft.2026.101624","DOIUrl":"10.1016/j.ijft.2026.101624","url":null,"abstract":"<div><div>This study examines the influence of thermal radiation on the unsteady magnetohydrodynamic (MHD) flow of a hybrid nanofluid past an infinitely oscillating vertical plate. The main objective is to investigate the combined effects of thermal radiation, nanoparticle volume fraction and oscillatory motion on hybrid nanofluid flow velocity and heat transfer characteristics. The governing momentum and energy equations are solved analytically using the Laplace transform technique. The effects of relevant non-dimensional parameters on velocity and temperature profiles are illustrated graphically. Furthermore, three-dimensional surface plots of the Nusselt number are presented to visualize variations in the heat transfer rate and expressions for skin friction are obtained. The results show that skin friction increases with increasing Cu nanoparticle volume fraction (φ<sub>1</sub>), radiation parameter (N) and Prandtl number (Pr). An increase in the radiation parameter decreases the fluid temperature while enhancing the fluid velocity. In addition, both primary and secondary velocities decrease with an increase in φ<sub>1</sub>, whereas the opposite behaviour is observed with increasing <em>TiO</em><sub>2</sub>nanoparticle volume fraction φ<sub>2</sub>.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"33 ","pages":"Article 101624"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diffusive-thermal and internal heat source effects on heat transfer modeling of a radiatively dissipative flow over a stretching sheet 扩散热源和内部热源对拉伸薄板上辐射耗散流动传热模型的影响
International Journal of Thermofluids Pub Date : 2026-05-01 Epub Date: 2026-04-23 DOI: 10.1016/j.ijft.2026.101627
M. Srinivas , Y.Rajashekhar Reddy
{"title":"Diffusive-thermal and internal heat source effects on heat transfer modeling of a radiatively dissipative flow over a stretching sheet","authors":"M. Srinivas ,&nbsp;Y.Rajashekhar Reddy","doi":"10.1016/j.ijft.2026.101627","DOIUrl":"10.1016/j.ijft.2026.101627","url":null,"abstract":"<div><h3>Aim/objective/novelty</h3><div>The novelty of this research is to execute the significance of Dufour(Diffusive-Thermo) and two-phase nano fluid effects. Also, focused on boundary layer nanofluid flow in Radiative Dissipative Flow of Magnetized Stretched Surface with Heat Source Implications.</div></div><div><h3>Methodology</h3><div>The problem can be mathematically modeled by using equations for mass, momentum, energy, and concentration. The equations governing the flow have highly nonlinear terms, which are converted into ODEs for similarity transfers, resulting in simplified equations. Mathlab's BVP4C function was used for solving these equations.</div></div><div><h3>Main findings</h3><div>A wide range of significant parameters have been examined by the authors in the present study, including the magnetic parameter, the Dufour number, the chemical reaction parameter, the heat source parameter, the Biot parameter, the porosity parameter, and flow variables, including flow rate, temperature, and concentration.</div></div><div><h3>Applications</h3><div>This study makes important contributions to existing research and is of great interest to the lubrication of porous surfaces, fluid flow through porous membranes, and agricultural, biomedical, and chemical industries requiring filtration through porous plates. Moreover, this approach improves prediction performance in both thermal and mass transport contexts based on existing research on rheological behavior.</div></div><div><h3>Originality/value</h3><div>Previously, no investigation has been performed on Dufour(Diffusive-Thermo) and two-phase nano fluid. A gap in the literature has been identified, which is addressed by this study.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"33 ","pages":"Article 101627"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Energy, economic, and environmental (3E) analysis of biogas generators waste heat recovery for sustainable cooling applications in wastewater treatment plants 废水处理厂可持续冷却应用的沼气发生器余热回收的能源、经济和环境(3E)分析
International Journal of Thermofluids Pub Date : 2026-05-01 Epub Date: 2026-04-15 DOI: 10.1016/j.ijft.2026.101621
Mohammad Alrbai , Sameer Al-Dahidi , Hussein Alahmer , Bashar Shboul , Bilal Rinchi , Mosa Abusorra , Loiy Al-Ghussain , Hassan Hayajneh , Ali Alahmer
{"title":"Energy, economic, and environmental (3E) analysis of biogas generators waste heat recovery for sustainable cooling applications in wastewater treatment plants","authors":"Mohammad Alrbai ,&nbsp;Sameer Al-Dahidi ,&nbsp;Hussein Alahmer ,&nbsp;Bashar Shboul ,&nbsp;Bilal Rinchi ,&nbsp;Mosa Abusorra ,&nbsp;Loiy Al-Ghussain ,&nbsp;Hassan Hayajneh ,&nbsp;Ali Alahmer","doi":"10.1016/j.ijft.2026.101621","DOIUrl":"10.1016/j.ijft.2026.101621","url":null,"abstract":"<div><div>This study investigates the recovery and utilization of waste heat from biogas generators in wastewater treatment facilities for in terms of cooling applications. As-Samra Wastewater Treatment Plant in Jordan was selected as a case study, where waste heat from biogas-fueled generators was used to drive a single-stage absorption chiller for building cooling. The objective was to evaluate the technical, economic, and environmental performance of the proposed system through integrated modeling and optimization. Thermodynamic modeling and dynamic simulations were conducted in TRNSYS® and Aspen Plus® using real operational data from the plant. A parametric analysis was performed to examine the influence of biogas flow rate, exhaust gas temperature, and solution circulation rate on system performance and cost. To enhance system performance, a hybrid optimization framework combining the Multi-Objective Cheetah Optimizer and Random Forest Regression was developed and compared with Particle Swarm Optimization and Grey Wolf Optimization. The optimized configuration achieved a coefficient of performance of 0.942 with a reduced circulation ratio of 1.52. The levelized cost of cooling ranged from 0.0175 to 0.0178 USD/kWhₜₕ, nearly half the cost of conventional cooling systems. Economic analysis indicated positive Net Present Values of 0.315–0.330 million USD, benefit–cost ratios greater than unity, and payback periods of 4.1–4.25 years. In addition, the system is estimated to reduce annual CO₂ emissions by 406–421 tons.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"33 ","pages":"Article 101621"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of groove orientation and number on pool boiling heat transfer of water: experimental analysis and ANN modeling 槽位和槽数对池内水沸腾换热的影响:实验分析和人工神经网络建模
International Journal of Thermofluids Pub Date : 2026-05-01 Epub Date: 2026-05-05 DOI: 10.1016/j.ijft.2026.101633
Samane Hamzekhani, Mohammad Rasoul Kamalizade, Mohammad Reza Sardashti Birjandi, Farhad Shahraki
{"title":"Influence of groove orientation and number on pool boiling heat transfer of water: experimental analysis and ANN modeling","authors":"Samane Hamzekhani,&nbsp;Mohammad Rasoul Kamalizade,&nbsp;Mohammad Reza Sardashti Birjandi,&nbsp;Farhad Shahraki","doi":"10.1016/j.ijft.2026.101633","DOIUrl":"10.1016/j.ijft.2026.101633","url":null,"abstract":"<div><div>This research examines how the orientation of surface grooves influences the pool boiling heat transfer coefficient (HTC) of pure water under atmospheric pressure on a flat heating surface. Grooves with identical geometric dimensions (width, depth, and pitch) were fabricated in two distinct patterns: parallel and concentric. Experimental measurements were complemented by predictions obtained using an artificial neural network (ANN) model. The applied heat flux ranged from 0 to 212 kW·m⁻², and test surfaces included configurations with 0–4 grooves. Results demonstrated that all grooved surfaces exhibited higher HTC values compared with the smooth reference surface, and increasing the groove count enhanced heat transfer performance. For parallel grooves, HTC improvements averaged 32–38%, while concentric grooves achieved gains in the range of 19–90%. The ANN model showed good agreement with the experimental data within the investigated range. Under identical groove geometry, concentric patterns consistently produced higher HTC values than parallel ones, indicating that groove orientation plays an important role in pool boiling heat transfer enhancement.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"33 ","pages":"Article 101633"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147849951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
AI-driven surrogate modeling and design optimization of the nitrogen single-expander LNG process for energy efficiency improvement 基于ai驱动的氮气单膨胀器LNG工艺代理建模与优化设计
International Journal of Thermofluids Pub Date : 2026-05-01 Epub Date: 2026-04-11 DOI: 10.1016/j.ijft.2026.101618
Noman Raza Sial , Hilal Al-Abri , Ashfaq Ahmad , Muhammad Abdul Qyyum , Ala'a H. Al-Muhtaseb
{"title":"AI-driven surrogate modeling and design optimization of the nitrogen single-expander LNG process for energy efficiency improvement","authors":"Noman Raza Sial ,&nbsp;Hilal Al-Abri ,&nbsp;Ashfaq Ahmad ,&nbsp;Muhammad Abdul Qyyum ,&nbsp;Ala'a H. Al-Muhtaseb","doi":"10.1016/j.ijft.2026.101618","DOIUrl":"10.1016/j.ijft.2026.101618","url":null,"abstract":"<div><div>Natural gas liquefaction is an energy-intensive operation in the LNG value chain. The N<sub>2</sub> single-expander process is widely used in small- to mid-scale plants because of its simplicity, safety, and operational flexibility, making it ideal for modular and offshore applications. However, its efficiency remains significantly lower than mixed-refrigerant cycles. While recent literature explores AI-assisted optimization for LNG processes, most approaches rely on computationally intensive, iterative simulator-in-the-loop frameworks. To address this gap, this study develops a fully decoupled, AI-based surrogate framework that instantaneously predicts optimal operating variables (e.g., pressures, temperatures, and refrigerant flow rates). By strictly enforcing thermodynamic feasibility constraints, such as the MITA, natively within the model, this approach eliminates the need for repeated runtime simulations. The framework achieves remarkable predictive accuracy, reducing the MITA prediction error to 8.21% and maintaining the specific energy consumption error at approximately 6.7% when trained on 10,000 samples. It quantitatively outperforms a benchmarked ANN, which yielded an 11.13% MITA error under identical conditions. Furthermore, the model successfully identifies optimal operating windows capable of reducing overall SEC by up to 15% compared to unoptimized baseline operations. Ultimately, this work transforms simulation-heavy LNG process design into a rapid, accurate, and scalable decision-support tool. By enhancing the efficiency of the N<sub>2</sub> single-expander process, this data-driven framework accelerates LNG digitalization, boosts industrial competitiveness, and directly contributes to global decarbonization targets.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"33 ","pages":"Article 101618"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advanced adsorbent-adsorbate pairs for sustainable and energy-efficient adsorption refrigeration in net-zero buildings: Working-Pair performance mapping, AI-driven materials screening, and system integration 用于零净建筑可持续节能吸附制冷的先进吸附剂-吸附质对:工作对性能映射、人工智能驱动的材料筛选和系统集成
International Journal of Thermofluids Pub Date : 2026-05-01 Epub Date: 2026-04-20 DOI: 10.1016/j.ijft.2026.101625
Ramesh P Sah , Anirban Sur , Naresh Chaudhari , Ashok Kumar Yadav , Aqueel Ahmad , Ashu Yadav
{"title":"Advanced adsorbent-adsorbate pairs for sustainable and energy-efficient adsorption refrigeration in net-zero buildings: Working-Pair performance mapping, AI-driven materials screening, and system integration","authors":"Ramesh P Sah ,&nbsp;Anirban Sur ,&nbsp;Naresh Chaudhari ,&nbsp;Ashok Kumar Yadav ,&nbsp;Aqueel Ahmad ,&nbsp;Ashu Yadav","doi":"10.1016/j.ijft.2026.101625","DOIUrl":"10.1016/j.ijft.2026.101625","url":null,"abstract":"<div><div>The growing demand for sustainable, energy-efficient cooling, driven by global warming and the transition to net-zero buildings, has renewed interest in adsorption refrigeration systems. These thermally driven technologies can exploit low-grade waste heat and solar thermal energy while using low-GWP working fluids, offering a compelling alternative to conventional vapor- compression cooling. However, large footprint, high component cost, and modest performance still hinder widespread deployment, largely due to limited heat and mass transfer in adsorption beds and slow sorption-desorption kinetics. Recent progress spans (i) advanced adsorbent- adsorbate working pairs (e.g., porous frameworks, salt-hybrid/composite adsorbents, and tailored sorbents), (ii) bed-scale intensification strategies (high-conductivity composites, coatings, structured adsorbents, finned/metal-foam exchangers, and additive-manufactured architectures), and (iii) improved cycle designs (heat/mass recovery, multi-bed and multi-stage configurations) that collectively raise COP and SCP. To make advanced working pairs and AI-driven material innovations central, and comparable across studies, this review compiles a unified working-pair database and introduces performance maps linking equilibrium/kinetic/thermophysical properties to operating windows (regeneration temperature, pressure lift, and achievable cooling capacity). We further present a concrete AI screening and down-selection workflow, covering data curation, descriptor selection, surrogate modeling, uncertainty-aware multi-objective optimization (COP-SCP-cost-temperature constraints), and experimental/TEA-informed validation. Finally, standardized, normalized comparison tables are provided to reconcile boundary-condition differences and directly connect material selection to cycle choice and bed design. By integrating materials discovery, AI-enabled design, and system-level engineering, this review offers an actionable framework to accelerate scalable adsorption cooling for sustainable, net-zero built environments.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"33 ","pages":"Article 101625"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical study of micro polar fluid flow over a stretching sheet with darcy–forchheimer drag, thermal radiation, dufour effect, and heat source 考虑达西-福海默阻力、热辐射、杜福效应和热源的微极流体在拉伸板上流动的数值研究
International Journal of Thermofluids Pub Date : 2026-03-01 Epub Date: 2026-01-10 DOI: 10.1016/j.ijft.2026.101556
S. Karthik , D. Iranian , C. Subramanian , V. Lakshmi , Qasem Al-Mdallal
{"title":"Numerical study of micro polar fluid flow over a stretching sheet with darcy–forchheimer drag, thermal radiation, dufour effect, and heat source","authors":"S. Karthik ,&nbsp;D. Iranian ,&nbsp;C. Subramanian ,&nbsp;V. Lakshmi ,&nbsp;Qasem Al-Mdallal","doi":"10.1016/j.ijft.2026.101556","DOIUrl":"10.1016/j.ijft.2026.101556","url":null,"abstract":"<div><div>This study is significant for advancing the design of porous heat-transfer systems such as geothermal exchangers, catalytic reactors, and polymer processing units by analyzing how multiple physical mechanisms jointly influence micropolar fluid behavior. The work numerically investigates the combined effects of Darcy–Forchheimer drag, thermal radiation, Dufour diffusion, and internal heat generation on the flow, micro rotation, and heat-transfer characteristics of a micropolar fluid over a stretching sheet embedded in a porous medium.The governing nonlinear partial differential equations were transformed into coupled ordinary differential equations through similarity transformations and solved using the Runge–Kutta–Fehlberg (RKF45) method with a shooting technique to ensure convergence and precision. Results reveal that Darcy and Forchheimer parameters substantially reduce fluid velocity due to enhanced porous resistance, whereas radiation and heat-generation parameters elevate the temperature profile within the boundary layer. An increase in the micropolar coupling parameter intensifies micro rotation and modifies near-wall shear stress behavior, while the Darcy number exhibits the strongest influence by markedly decreasing the heat-transfer rate as porosity resistance rises. Despite extensive research on micropolar and nanofluid flows through porous media, few studies have addressed the combined nonlinear influence of Darcy–Forchheimer drag, radiative heat transfer, Dufour diffusion, and internal heat generation. The present unified model incorporates these mechanisms to capture their interactive effects on momentum and energy transport, offering new physical insights for optimizing thermal management in porous and radiative fluid systems.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"32 ","pages":"Article 101556"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Maxwell fluid flow with Gyrotactic microorganisms: Effects of suction reynolds number, activation energy, and nonlinear heat radiation 旋转微生物的麦克斯韦流体流动:吸力雷诺数、活化能和非线性热辐射的影响
International Journal of Thermofluids Pub Date : 2026-03-01 Epub Date: 2026-01-15 DOI: 10.1016/j.ijft.2026.101560
Indushri Patgiri , B. Shankar Goud , Hussein Maaitah , Mohamad Y. Mustafa
{"title":"Maxwell fluid flow with Gyrotactic microorganisms: Effects of suction reynolds number, activation energy, and nonlinear heat radiation","authors":"Indushri Patgiri ,&nbsp;B. Shankar Goud ,&nbsp;Hussein Maaitah ,&nbsp;Mohamad Y. Mustafa","doi":"10.1016/j.ijft.2026.101560","DOIUrl":"10.1016/j.ijft.2026.101560","url":null,"abstract":"<div><div>The purpose of this study is to explore a steady 2-D flow behaviour of Maxwell fluid, focusing on the properties of important factors on temperature, velocity, concentration, and motile microbe density distributions. The roles of suction Reynolds number, energy activation, and nonlinear thermal radiation are discussed. By inserting appropriate similarity variables, governing equations are transformed into dimensionless form, and the resulting nonlinear equations are numerically solved using the bvp4c technique. Graphs depict the impact of various physical factors on temperature, velocity, concentration, and motile microbe density boundary layer profiles. Furthermore, the research shows changes in skin friction coefficients, mass transfer rates, and density numbers. The principal findings of this study show that the Deborah number and magnetic parameter diminish fluid velocity and shear stress. The heat source parameter and Eckert number increase the thickness of the thermal boundary layer. Meanwhile, the Reynolds and Schmidt numbers reduce the concentration dispersion. Furthermore, the bioconvective Schmidt number and motile parameter diminish the density of motile bacteria. Researchers are interested in this fluid model because gyrotactic organisms boost bioconvective mixing, which improves heat and mass transfer; this mechanism is directly applicable to practical systems like bioreactors, wastewater treatment, microfluidic gadgets, and bioenergy generation.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"32 ","pages":"Article 101560"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on pollution prevention and control in semiconductor process tool and mini-environment 半导体加工工具及微环境污染防治研究
International Journal of Thermofluids Pub Date : 2026-03-01 Epub Date: 2026-01-26 DOI: 10.1016/j.ijft.2026.101572
Shih-Cheng Hu , Tee Lin , Omid Ali Zargar , Shih-Hsun Chu , Yang-Cheng Shih , Graham Leggett
{"title":"Research on pollution prevention and control in semiconductor process tool and mini-environment","authors":"Shih-Cheng Hu ,&nbsp;Tee Lin ,&nbsp;Omid Ali Zargar ,&nbsp;Shih-Hsun Chu ,&nbsp;Yang-Cheng Shih ,&nbsp;Graham Leggett","doi":"10.1016/j.ijft.2026.101572","DOIUrl":"10.1016/j.ijft.2026.101572","url":null,"abstract":"<div><div>Taiwan currently holds the leading position globally in the semiconductor manufacturing industry, with wafer fabrication outsourcing playing a significant role. The cleanliness of cleanrooms is paramount to maintain and strengthen this position. During the wafer manufacturing process, Airborne Molecular Contamination (AMC) can lead to defects in wafers, thereby reducing yield. Traditional ballroom-style cleanrooms are increasingly unable to meet the current requirements for cleanliness and reliability. Thus, controlling gas-phase molecular contaminants in mini-environments has become a critical research topic. Currently, most process equipment maintains positive pressure relative to the surrounding environment to preserve internal cleanliness and prevent gas intrusion from cleanroom contamination. However, when process equipment is connected to the Equipment Front End Module (EFEM), the design of the positive pressure in the process equipment may introduce process gases into the connecting channels of the EFEM. This can lead to gas contamination in the mini-environment due to diffusion and turbulence generated by the movement of mechanical arms, resulting in corrosion and contamination of the mini-environment walls and equipment surfaces. This study utilizes Computational Fluid Dynamics (CFD) simulations to analyze contamination during the connection between the Equipment Front End Module (EFEM) and process equipment. It investigates measures to prevent the diffusion of process gases (HF) from process equipment to the mini-environment and provides a reference for future prevention of special gas contamination in mini-environments for the first time. The results show that by optimizing the process parameters such as floor suction velocity, laminar air curtain (LAC) flow rate, and duct local exhaust velocity, the HF pollutant isolation efficiency could be improved by up to 24.69 %. The findings of this study could be beneficial to improve the front opening unified pod (FOUP) cleaning efficiency in semiconductor manufacturing and even different areas of vacuum technology.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"32 ","pages":"Article 101572"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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