International Communications in Heat and Mass Transfer最新文献_第5页

Verification and validation plus uncertainty quantification of heat transfer simulation for liquid metal in wire-wrapped rod assembly 线包棒组件中液态金属传热模拟的验证与验证及不确定度量化

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-05-24 DOI: 10.1016/j.icheatmasstransfer.2025.109114

Zhenglong Liu, Peiling Zhong, Hanrui Qiu, Mingjun Wang, Wenxi Tian, Guanghui Su

{"title":"Verification and validation plus uncertainty quantification of heat transfer simulation for liquid metal in wire-wrapped rod assembly","authors":"Zhenglong Liu, Peiling Zhong, Hanrui Qiu, Mingjun Wang, Wenxi Tian, Guanghui Su","doi":"10.1016/j.icheatmasstransfer.2025.109114","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109114","url":null,"abstract":"<div><div>A complete CFD best practice process is proposed, including Phenomena Identification and Ranking Table (PIRT), Verification and Validation (V&V), and Uncertainty Quantification (UQ). The heat transfer of liquid metal within a rod assembly under both normal and blocked conditions is used as an example to demonstrate the full CFD process. Key flow and heat transfer phenomena are identified, and model sensitivity analyses are performed based on these phenomena. Turbulent Prandtl models, porous blockage models and different meshing strategies sensitivity analysis are conducted. Uncertainty quantification is performed. The discretization uncertainty is calculated using the Grid Convergence Index (GCI). The convergence orders are greater than unity for all cases except the fluid temperature in the blocked condition using meshing strategy 2. The input parameter uncertainty is estimated using finite difference. The model uncertainty is derived. Under normal condition, the model uncertainty of the wall and fluid temperatures are 2.88 K and 3.37 K, respectively. Under blocked condition, the model uncertainty of wall temperature is slightly higher than fluid temperature. The wall temperature uncertainty for strategies 1 and 2 are 8.46 K and 9.03 K, while the fluid uncertainty of strategy 1 and 2 are 3.57 K and 3.06 K, respectively.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"165 ","pages":"Article 109114"},"PeriodicalIF":6.4,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal conductivity and rheological behavior of silica / simulated body fluid - Dispersed Hardystonite and Åkermanite nanofluids: X-ray diffraction to analyze structure and morphology of a bio-ceramic 二氧化硅/模拟体液的热导率和流变行为-分散硬石岩和Åkermanite纳米流体：x射线衍射分析生物陶瓷的结构和形态

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-05-24 DOI: 10.1016/j.icheatmasstransfer.2025.109097

Shulong Liu , Taoufik Saidani , Dulong Feng , Mohammed Jameel Alawi , Mohamed Hussien , Wejdan Deebani

{"title":"Thermal conductivity and rheological behavior of silica / simulated body fluid - Dispersed Hardystonite and Åkermanite nanofluids: X-ray diffraction to analyze structure and morphology of a bio-ceramic","authors":"Shulong Liu , Taoufik Saidani , Dulong Feng , Mohammed Jameel Alawi , Mohamed Hussien , Wejdan Deebani","doi":"10.1016/j.icheatmasstransfer.2025.109097","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109097","url":null,"abstract":"<div><div>Bioceramics are integral in biomedical applications due to their biocompatibility, bioactivity, and mechanical properties. This study compares the thermal and rheological behavior of two hybrid bio-nanofluids (bi-ns): Hardystonite/Silica and Åkermanite/Silica dispersed in simulated body fluid (SBF). Nanoparticle morphology and composition were analyzed using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM), confirming the crystalline phases of both composites. Åkermanite/Silica showed better dispersion stability, with a higher zeta potential (−16.19 mV) than Hardystonite/Silica (−7.23 mV). The addition of silica (SiO<sub>2</sub>) improved stability for both, with zeta potential increases of ∼203 % and 69 %, respectively. Thermal conductivity of both nanofluids increased with temperature and volume fraction, with Åkermanite/Silica achieving a maximum enhancement of 13.16 % (20–40 °C). However, both showed negative thermal conductivity enhancements compared to SBF, especially at higher concentrations. Hardystonite/Silica demonstrated greater thermal compatibility with SBF. Rheologically, both nanofluids exhibited shear-thinning behavior. Hardystonite/Silica showed a stronger reduction in viscosity with temperature increase—up to 43.43 % at 0.25 % volume fraction—compared to 32.74 % for Åkermanite/Silica. These results highlight the interaction between thermal and flow properties in bi-ns, indicating that Hardystonite/Silica may be better suited for applications requiring thermal compatibility and viscosity control. The findings contribute to the optimization of hybrid nanofluids for bone-related biomedical applications.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"165 ","pages":"Article 109097"},"PeriodicalIF":6.4,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144131150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental study on the effect of concentration gradient on explosion dynamics and flame propagation in a methane-filled pipeline 浓度梯度对甲烷管道爆炸动力学和火焰传播影响的实验研究

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-05-23 DOI: 10.1016/j.icheatmasstransfer.2025.109110

Ranran Li , Zihao Xiu , Zhenyi Liu , Fengpu Xiao , Mingzhi Li , Qiqi Liu

{"title":"Experimental study on the effect of concentration gradient on explosion dynamics and flame propagation in a methane-filled pipeline","authors":"Ranran Li , Zihao Xiu , Zhenyi Liu , Fengpu Xiao , Mingzhi Li , Qiqi Liu","doi":"10.1016/j.icheatmasstransfer.2025.109110","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109110","url":null,"abstract":"<div><div>Traditional studies on gas explosions are typically conducted under uniform conditions. However, in practical scenarios, gas distribution is often non-uniform, a factor that significantly influences the explosion process. To further explore the impact of such non-uniform distributions on the deflagration and detonation characteristics of combustible gases, this study designs and establishes an experimental platform capable of accurately quantifying concentration gradients during gas explosion and propagation. The experiments demonstrate that the most severe impact of shock waves and flame propagation occurs under conditions of uniform gas distribution, where the maximum overpressure reaches 395.28 kPa and the average flame propagation velocity reaches 214.74 m/s. The presence of concentration gradients mitigates the overpressure hazard of explosions and suppresses flame propagation and development. Moreover, positive concentration gradients (fuel-lean to fuel-rich) exhibit a weaker inhibitory effect on explosion characteristics compared to negative concentration gradients (fuel-rich to fuel-lean). When the volume of methane injected into the pipeline remains constant, a 4 % variation in concentration gradients results in a 57 % and 79 % reduction in maximum overpressure under positive and negative gradient conditions, respectively. These experimental findings can offer valuable theoretical guidance and data support for the design of explosion resistance and venting systems in combustible gas installations.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"165 ","pages":"Article 109110"},"PeriodicalIF":6.4,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-objective optimization of thermal protection / drag reduction under the synergistic effect of multiple factors in transpiration cooling 蒸腾冷却多因素协同作用下的热防护/减阻多目标优化

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-05-23 DOI: 10.1016/j.icheatmasstransfer.2025.109107

Jiayue Zheng , Xue Liu , Yuyang Bian , Yanqi Diao , Zhongli Zhang , Weixing Zhou

{"title":"Multi-objective optimization of thermal protection / drag reduction under the synergistic effect of multiple factors in transpiration cooling","authors":"Jiayue Zheng , Xue Liu , Yuyang Bian , Yanqi Diao , Zhongli Zhang , Weixing Zhou","doi":"10.1016/j.icheatmasstransfer.2025.109107","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109107","url":null,"abstract":"<div><div>Transpiration cooling, which is regarded as a highly prospective active thermal protection approach, has seen its structural optimization design become a research focus. This study employs Taguchi-ANOVA to analyze the effect degree of various factors (directional angle, porosity, and segment length) on evaluation parameters (average temperature, maximum temperature, and friction coefficient), thereby investigating the heat transfer mechanism and structural optimization design of segmented directional transpiration cooling. Furthermore, a multi-objective optimization of the segmented directional transpiration structure is conducted based on entropy weight method-TOPSIS approach. Results indicate that an increase in porosity of the front section generates a pressure gradient due to the differential flow resistance between the anterior and posterior sections of the porous plate. This pressure gradient induces mass transport of the coolant within the cavity towards the initial transpiration position. Simultaneously, the directional angle ensures effective cooling maintenance in the rear section. A comprehensive performance comparison between the optimized structure and the conventional segmented transpiration configuration, the optimized design demonstrates a substantial reduction in the maximum surface temperature by 141 K, accompanied by a 6.6 % decrease in the average friction coefficient.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"165 ","pages":"Article 109107"},"PeriodicalIF":6.4,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental investigation of the two-phase heat transfer performance of a novel hybrid jet impingement microchannel heat sink subject to dielectric fluid HFE-7000 介质HFE-7000作用下新型混合射流冲击微通道散热器两相传热性能实验研究

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-05-23 DOI: 10.1016/j.icheatmasstransfer.2025.109102

Aqbal Ahmad, Mohammed W. Sulaiman, Chi-Chuan Wang

{"title":"Experimental investigation of the two-phase heat transfer performance of a novel hybrid jet impingement microchannel heat sink subject to dielectric fluid HFE-7000","authors":"Aqbal Ahmad, Mohammed W. Sulaiman, Chi-Chuan Wang","doi":"10.1016/j.icheatmasstransfer.2025.109102","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109102","url":null,"abstract":"<div><div>This study examines the two-phase heat transfer and frictional performance of a novel hybrid jet-impingement microchannel heat sink (HJIHS) for high-flux electronic devices. The proposed HJIHS contains an array of jets at its core. The array jets have a diameter of 1 mm and a pitch of 1.5 mm. Tests are conducted in a microchannel heat sink with 52 mm in length and 49 mm in width, and dielectric fluid HFE-7000 is used as the coolant. The microchannel features a width of 0.2 mm, a thickness of 0.2 mm, and a height of 3 mm. A typical cross-flow microchannel with identical geometry is also used for comparison. It is found that the hybrid jet heat sinks can dissipate a heat flux up to 55 W/cm<sup>2</sup> at a mass flux of 142 kg/m<sup>2</sup>·s. For a mass flux near 144 kg/m<sup>2</sup>·s and a heat flux about 40 W/cm<sup>2</sup>, the performance of HJIHS is about 4 % higher than cross-flow microchannel heat sink. The present design showed a 140 % lower pressure drop than the cross-flow microchannel at a heat flux of 40 W/cm<sup>2</sup> heat flux and a mass flux of 100 kg/m<sup>2</sup>·s. The thermal spreading resistance contributes approximately 70 % of the total thermal resistance.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"165 ","pages":"Article 109102"},"PeriodicalIF":6.4,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","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 thermomagnetic drive characteristics of temperature-sensitive magnetic fluids 温度敏感磁流体热磁驱动特性的数值研究

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-05-22 DOI: 10.1016/j.icheatmasstransfer.2025.109100

Guiping Zhu , Da Zeng , Sihang Liu , Yi Huang

{"title":"Numerical study of thermomagnetic drive characteristics of temperature-sensitive magnetic fluids","authors":"Guiping Zhu , Da Zeng , Sihang Liu , Yi Huang","doi":"10.1016/j.icheatmasstransfer.2025.109100","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109100","url":null,"abstract":"<div><div>Temperature-sensitive magnetic fluids (TSMF) featured in self-driving is a promising approach for non-energy consumption cooling. Presently, the research on TSMF predominantly focuses on flow characteristics and cooling performance, where understanding of driving characteristics remains limited. This study develops a numerical model based on the characteristic of TSMF, which is validated through experimental measurement. We conduct systematic numerical investigation on the flow, heat transfer, and magnetic force characteristics under varying heat fluxes and magnetic remanences. As both heat flux and magnetic remanence increase, convective heat transfer progressively intensifies with the coefficient (<em>h</em>) ranging between 4000 W/(m<sup>2</sup>·K) and 9000 W/(m<sup>2</sup>·K). An increase in heat flux amplifies the temperature gradient induced force, intensifying the imbalance of the magnetic field gradient force, which results in an accelerated flow velocity. Additionally, increasing the remanence of the magnet under constant heat flux further enhances the temperature gradient induced force and substantially the magnetic field gradient force. Nevertheless, the reduction in circuit temperature leads to an increase in viscous forces, resulting in a slow increase in the average velocity of the circuit. Our findings reveal the mechanisms of magnetic forces in thermomagnetic driving and provide valuable reference and guidance for the design of TSMF self-driven devices.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"165 ","pages":"Article 109100"},"PeriodicalIF":6.4,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144106886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comprehensive thermal analysis of a nano-enhanced PCM in a finned latent heat storage system 翅片潜热蓄热系统中纳米增强PCM的综合热分析

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-05-22 DOI: 10.1016/j.icheatmasstransfer.2025.109106

Ilias Benyahia , Mohammed F. Al-Ghamdi , Aissa Abderrahmane , Obai Younis , Samir Laouedj , Kamel Guedri , Ali Alahmer

{"title":"Comprehensive thermal analysis of a nano-enhanced PCM in a finned latent heat storage system","authors":"Ilias Benyahia , Mohammed F. Al-Ghamdi , Aissa Abderrahmane , Obai Younis , Samir Laouedj , Kamel Guedri , Ali Alahmer","doi":"10.1016/j.icheatmasstransfer.2025.109106","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109106","url":null,"abstract":"<div><div>This study investigates the melting performance of a novel shell-and-tube latent heat thermal energy storage (LHTES) system using copper nanoparticle (Cu-NP)-enhanced paraffin wax based phase change material (PCM) within a finned triangular tube configuration. Addressing the critical challenge of low heat transfer rates in LHTES systems, the research combines geometric optimization (tube eccentricity and inclination) with material enhancement (Cu-NPs) to improve thermal efficiency. A numerical model employing the enthalpy-porosity method systematically evaluates the effects of Cu-NP concentration (0–8 %), tube eccentricity (top/center/bottom), and inclination angle (0°/60°/90°) on melting dynamics, using melt fraction, Nusselt number (Nu), and Bejan number (Be) as performance metrics. Results demonstrate that geometric adjustments dominate thermal performance: a 60° inclination reduces melting time by 42 %, while bottom eccentricity achieves a 58 % reduction by enhancing natural convection. While higher concentrations of Cu-NPs improve thermal conductivity and lower entropy generation, their influence on melt fraction and temperature increase is relatively limited. Heat transfer analysis indicates that natural convection is found to dominate heat transfer above the tube, while conduction prevails in the lower region. Evaluation of Nusselt and Bejan numbers reveals the critical balance between convective heat transfer enhancement and thermodynamic irreversibility. The optimal configuration (60° inclination, bottom eccentricity, and 4 % Cu-NPs) balances melting efficiency and thermodynamic irreversibility. This study highlights geometric optimization as a more effective strategy than nanoparticle addition for LHTES design, offering practical insights for energy storage applications.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"165 ","pages":"Article 109106"},"PeriodicalIF":6.4,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144106885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A level-set method for hydrogen bubble growth on a microelectrode in water electrolysis 水电解微电极上氢泡生长的水平集方法

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-05-21 DOI: 10.1016/j.icheatmasstransfer.2025.109024

Jungju Park, Jaesung Park, Gihun Son

引用次数: 0

A second-order phase field-lattice Boltzmann model for two-phase flows with moving contact line and soluble surfactants 具有移动接触线和可溶性表面活性剂的两相流的二阶相场-晶格玻尔兹曼模型

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-05-21 DOI: 10.1016/j.icheatmasstransfer.2025.109104

Shiting Zhang , Xifeng Wang , Yuqi Zhu , Yang Hu , Qiang He , Qianping Li , Decai Li

{"title":"A second-order phase field-lattice Boltzmann model for two-phase flows with moving contact line and soluble surfactants","authors":"Shiting Zhang , Xifeng Wang , Yuqi Zhu , Yang Hu , Qiang He , Qianping Li , Decai Li","doi":"10.1016/j.icheatmasstransfer.2025.109104","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109104","url":null,"abstract":"<div><div>This paper presents a second-order phase field-lattice Boltzmann model for two-phase flows with moving contact lines and soluble surfactants. The phase field and surfactant concentration field are governed by second-order conservative Allen-Cahn equations, while the velocity-based Navier–Stokes equations describe the flow field. The model ensures that surfactant concentration variations do not affect the order parameter distribution, preventing sharpening effects. An approximate explicit equation of state, derived from the Gibbs–Duhem equation, defines the relationship between surfactant concentration and interfacial tension, which is incorporated into Young's equation to determine the equilibrium contact angle. A geometrically defined wetting boundary condition addresses the moving contact line problem. Model validation includes verifying the equation of state using the Laplace law and assessing the equilibrium contact angle based on the geometric properties of droplets spreading on planar surfaces. Simulations explore the effects of wettability, surfactant concentration, and flow parameters on droplet dynamics, including Couette and Poiseuille flows, gravity-driven droplet motion, and droplet behavior on rough surfaces. The study results indicate that increasing surfactant concentration reduces the contact angle on hydrophilic surfaces while increasing it on hydrophobic surfaces, highlighting its impact on surface wettability.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"165 ","pages":"Article 109104"},"PeriodicalIF":6.4,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144106985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relationship among solutions for three-phase change problems with Robin, Dirichlet and Neumann boundary conditions 具有Robin、Dirichlet和Neumann边界条件的三相变化问题解之间的关系

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-05-21 DOI: 10.1016/j.icheatmasstransfer.2025.108966

Julieta Bollati , María F. Natale , José A. Semitiel , Domingo A. Tarzia

引用次数: 0