International Journal of Heat and Mass Transfer最新文献

{"title":"Long range surface plasmon resonance induced mid-infrared Fano resonance and the mediated nonreciprocal thermal radiation","authors":"Xin Cui ,&nbsp;Fenglin Xian ,&nbsp;Liming Qian ,&nbsp;Zhaolou Cao ,&nbsp;Shixin Pei ,&nbsp;Gaige Zheng","doi":"10.1016/j.ijheatmasstransfer.2025.126967","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126967","url":null,"abstract":"<div><div>Nonreciprocal thermal radiation (NTR) has attracted significant attention, which offers a broader control over radiative heat transfer beyond conventional limits. Manipulating NTR involves creating systems with various strategy where heat transfer depends on the direction of energy flow, breaking traditional reciprocity. Here, we consider a Kretschmann configuration that consists of a germanium (Ge) prism, barium fluoride (BaF₂), Weyl semimetal (WSM) layer, BaF₂ and zinc selenide (ZnSe). Long range surface plasmon resonance (LRSPR) is expected to be excited at resonance of <span><math><mrow><mn>10</mn><mo>.</mo><mn>8</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span> with a narrow resonance dip. Asymmetric Fano resonance (FR) will be achieved by the strong coupling between waveguide mode (WGM) and long-range surface plasmon polaritons (LRSPPs). This FR can bring about narrowband and directional thermal emission, which can also boost the contrast between the emissivity and absorptivity in a broad range of structural parameters. The underlying physical principles of the device are elucidated through the examination of magnetic field distributions. The proposed configuration shows great potential mid-IR thermal radiation regulation.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"244 ","pages":"Article 126967"},"PeriodicalIF":5.0,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686836","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}

{"title":"Boiling heat transfer with a microporous heating surface in a narrow gap with cover plates of different wettability","authors":"Aqsa Rukhsar ,&nbsp;Dani Fadda ,&nbsp;Jungho Lee ,&nbsp;Seung M. You","doi":"10.1016/j.ijheatmasstransfer.2025.126956","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126956","url":null,"abstract":"<div><div>An experimental study on boiling heat transfer with distilled water and a copper high-temperature thermally-conductive microporous coating (Cu-HTCMC) is performed in a narrow gap of 0.64, 1, 2, 3, and 5 mm thickness with hydrophilic and hydrophobic cover plates having apparent contact angles of 11°, 70°, and 150°. The parahydrophobic nature of the microporous copper coating and the interconnected channels within the coating allow the heating surface to stay wet and the boiling heat transfer performance to significantly exceed that of an uncoated copper surface. A hydrophobic cover plate causes stratified flow in the narrow gap, while a hydrophilic cover plate causes a laterally growing bubble in the gap. Regardless of the cover plate wettability, the wall superheat follows the unconfined case without any deterioration in the narrow gap up to the dryout heat flux due to the Cu-HTCMC on the boiling surface. Furthermore, minimal reduction in the critical heat flux is observed in narrow gap boiling with a hydrophobic cover plate, but significant reduction is observed with hydrophilic cover plates. The wettability effect diminishes as the gap size ≤ 1 mm since the vapor fills the narrow gap. For such gap sizes, the heat transfer coefficient enhancement is observed at low heat flux, followed by a sudden drop when vapor fills the gap and the surface struggles to stay wet.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"244 ","pages":"Article 126956"},"PeriodicalIF":5.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686830","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}

{"title":"Thermoelastic dynamic response analysis of graphene-reinforced composite piezoelectric plate subjected to a thermal shock","authors":"Lingchen Tian ,&nbsp;Zailin Yang","doi":"10.1016/j.ijheatmasstransfer.2025.126952","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126952","url":null,"abstract":"<div><div>Graphene nanoplates (GPLs) reinforced composite piezoelectric structures have become popular choices in composite material structures due to their superior thermodynamic attributes. However, considering the thermal hysteresis effect of composite structure, the classical heat conduction model cannot explain the thermodynamic behaviour. This study intends to fill these gaps by studying the thermoelastic response of the graphene-reinforced piezoelectric plate within the framework of the three-phase-lag (TPL) generalized thermoelastic theory. Firstly, four distribution patterns of GPLs, including UD, FG-O, FG-X and FG-A distribution patterns are considered, and the effective properties of the lamellar nanocomposites are evaluated by the Halpin-Tsai model. Secondly, the energy and the motion eq.s of the piezoelectric plate reinforced with GPLs based on the TPL generalized thermoelasticity are solved. The Laplace transform method and its numerical inversion are used to derive and solve the associated governing equations The effects of thermal relaxation time, weight fraction of GPLs and time on the thermoelastic response are discussed in detail. The results indicate that each physical quantity will increase with the increase of time, and the changes in these physical quantities are related to each other. The increase of GPLs content promotes the propagation of elastic and thermal waves. It provides a theoretical basis for the design of sensors and other devices based on graphene-reinforced composite piezoelectric plates.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"244 ","pages":"Article 126952"},"PeriodicalIF":5.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686831","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}

{"title":"Generalized physics-based cavitation model encompassing multiple cavitation regimes","authors":"Lester Toledo ,&nbsp;Kyungjun Choi ,&nbsp;Hyunji Kim ,&nbsp;Chongam Kim","doi":"10.1016/j.ijheatmasstransfer.2025.126898","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126898","url":null,"abstract":"<div><div>Accurate modeling of multiple cavitation regimes and their thermodynamic effects remains a challenge. This study extends the baseline physics-based cavitation model to a generalized form, encompassing the inertial, intermediate, and thermal cavitation regimes including the extreme thermal regime at very low Jakob number. For this purpose, a single bubble growth rate that is valid over a broad range of Jakob number is formulated. The dynamics of intermediate regime is captured by employing local pressure and temperature conditions. Key physical corrections for the bubble growth initiation, time delay, and growth acceleration are taken into account. The proposed cavitation model is then carefully validated and critically assessed with a series of test cases including homogeneous bubble growth over multiple cavitation regimes, cryogenic and isothermal cavitating flows. The bubble growth tests confirm its superior performance, particularly in the intermediate regime, and yield an excellent agreement with the experimental bubble growth curve over the entire bubble growth regime. Other computed results also show accurate capturing of cavitation features and thermal effects, demonstrating its utility in a wide range of operation conditions. Especially, the physical mechanism of multiple bubble pulsations is unveiled by analyzing the contribution of bubble growth rate from each cavitation regime.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"244 ","pages":"Article 126898"},"PeriodicalIF":5.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641725","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}

{"title":"Effect of thermophysical properties of perovskite electrolytes on intermediate temperature SOFC","authors":"Baitong Wang,&nbsp;Mingshang Liu,&nbsp;Zide Wu,&nbsp;Xun Liu,&nbsp;Mu Li,&nbsp;Dawei Tang","doi":"10.1016/j.ijheatmasstransfer.2025.126944","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126944","url":null,"abstract":"<div><div>Solid oxide fuel cell (SOFC) has captured significant interest and the electrolyte material is the key during operating. The present work introduces a series of intermediate temperature perovskite materials regarding of synthesis and characterization method. Corresponding thermophysical properties including thermal diffusivity, specific heat and thermal conductivity were determined at relevant temperature range. The result shows that thermal diffusivity has a stable tendency for the intermediate temperature electrolytes materials; Ba₃NbMoO_8.5 has the highest specific heat and BaSc_0.8MoNb_0.2O_2.8 has the highest thermal conductivity at 873 K. Besides, a 3-D model is established including transient state and steady state. After combining intermediate temperature electrolyte materials with different thermophysical properties, it is found that the maximum temperature gradient and thermal shock exist at switching time (<em>t</em> = 600 s) and the tendency are controversial for each other. Besides, after comparing different supported structure of SOFC, a systematic selection strategy is provided for IT-SOFC application. Cathode-supported structure SOFC is an ideal choice for long term usage, which has a low temperature gradient; whereas electrolyte-supported structure with Na_0.5Bi_0.5TiO₃ electrolyte is beneficial to quick start-up system, which has the lowest thermal shock.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"244 ","pages":"Article 126944"},"PeriodicalIF":5.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686832","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}

{"title":"Corrigendum to \"Pressure dependence of controlling parameters for heat-mass transfer in buoyant-flow aided upward flame spread over vertical electrical wire\" [Int. J. Heat Mass Transf. 240 (2025) 126653]","authors":"Yuxuan Ma ,&nbsp;Jiang Lv ,&nbsp;Zhengda Guo ,&nbsp;Yan Gu ,&nbsp;Yajun Huang ,&nbsp;Xiaolei Zhang ,&nbsp;Longhua Hu","doi":"10.1016/j.ijheatmasstransfer.2025.126916","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126916","url":null,"abstract":"","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"244 ","pages":"Article 126916"},"PeriodicalIF":5.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlation for wall-temperature oscillations in unsteady stagnation point convective heating","authors":"Tobias Hermann","doi":"10.1016/j.ijheatmasstransfer.2025.126907","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126907","url":null,"abstract":"<div><div>The purpose of this paper is to provide insight into how unsteady flow temperature affects the wall temperature of test articles exposed to convective heating. To this end, a simplified analytical correlation is derived that allows the determination of wall temperature fluctuation amplitude in the case of an unsteady freestream. Stagnation point flows with oscillating freestream temperature are analysed applying self-similar boundary layer theory. The correlation reveals that the problem is fully described by two non-dimensional parameters: the ratio of fluid and solid thermal effusivities, and the ratio <span><math><mrow><msqrt><mrow><mi>Sr</mi><mspace></mspace><mi>Pr</mi><mspace></mspace><mi>Re</mi></mrow></msqrt><mo>/</mo><mi>Nu</mi></mrow></math></span> of Strouhal, Prandtl, Reynolds, and Nusselt numbers. Numerical conjugate heat transfer simulations are performed for a solid test article subjected to convective heating. The derived analytical correlation agrees well with simulation results, spanning ten orders of magnitude in wall-to-freestream temperature amplitude ratio, with maximum discrepancies of 35%. Deviations from theory occur for low frequencies where the wall temperature of the solid medium undergoes significant temperature changes. Experimental measurements of an unsteady plasma freestream are analysed, predicting wall-temperature fluctuations of test articles of different sizes. High frequency content is shown to have little influence, while low frequencies contribute most to wall temperature fluctuations. Small sample sizes are shown to suffer from much larger wall-temperature fluctuation amplitudes, and high-density flow conditions are more severely affected. The derived theory can be applied to aid in both design and analysis of unsteady convective heating experiments.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"244 ","pages":"Article 126907"},"PeriodicalIF":5.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental study of the condensing heat transfer characteristics in a circular tube bank fin air cooler and the comparison to a flat tube bank fin air cooler","authors":"Shi-Qiang Zhu ,&nbsp;Liang-Bi Wang ,&nbsp;Xin Na ,&nbsp;Zhi-Min Lin ,&nbsp;Xiao-E Zhang","doi":"10.1016/j.ijheatmasstransfer.2025.126974","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126974","url":null,"abstract":"<div><div>The direct air-cooling technology employed in power plants offers significant potential for conserving water resource. The condensing heat transfer characteristics in the tubes of air cooler are crucial, and such condensation is enforced by air flow. Now most air-cooling islands of power plant use finned flat tube instead of finned circular tube or circular tube bank fin air cooler (CTBFAC) to decrease the air flow pressure drop. This paper performs an experimental study of the condensing heat transfer characteristics in a CTBFAC. The condensing heat transfer characteristics of the CTBFAC are compared to that of the flat tube bank fin air cooler (FTBFAC). The main experimental results demonstrate that: air flow rate plays a vital role in condensation heat transfer, there are strong coupling correlations between the tube side liquid/steam Reynolds number (<em>Re</em>_LS/<em>Re</em>_s), Nusselt number (<em>Nu</em>_s) and the air side Reynolds number (<em>Re</em>_a): <em>Re</em>_LS = 0.748<em>Re</em>_a^0.759 (1−<em>β</em>/180)^−0.169, <em>Re</em>_s = 12.704<em>Re_a</em>^0.760 (1−<em>β</em>/180)^−0.162, <em>Nu</em>_s = 1.510<em>Re</em>_a^0.455 (1−<em>β</em>/180)^−0.216, within the range of <em>Re</em>_a from 295 to 1100 and the range of inclination angle (<em>β</em>) from 30° to 90°. At the same <em>Re</em>_LS/<em>Re</em>_s, <em>Nu</em>_s of the CTBFAC is significantly higher than that of the FTBFAC.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"244 ","pages":"Article 126974"},"PeriodicalIF":5.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636572","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}

{"title":"Experimental analyses of flow boiling heat transfer on downward-facing surface at low inclination: Critical heat flux and vapor bubble dynamics","authors":"Min Suk Lee ,&nbsp;Hyoung Suk Yu ,&nbsp;Jun Yeong Jung ,&nbsp;Dong Hoon Kam ,&nbsp;Yong Hoon Jeong","doi":"10.1016/j.ijheatmasstransfer.2025.126960","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126960","url":null,"abstract":"<div><div>Numerous studies on critical heat flux (CHF) on a downward-facing heating surface in a low inclination channel have been reported, yet a profound understanding of CHF is still lacking under these conditions, which reflect the optimized design of thermal systems with a large surface that manage a large amount of heat. Flow boiling experiments were conducted in this work to evaluate boiling heat transfer and CHF with a downward-facing heating surface and very low inclination (10°) flow channel. The experimental conditions in this study were determined from the configuration of the core catcher as a representative system utilizing the flow boiling phenomenon on a 10° inclined large heating surface. Mass flux and subcooling effects on boiling heat transfer and CHF were evaluated, and analyses were performed on the heater and fluid temperature measurement results. Furthermore, an optical probe with two fiber sensor tips and a high-speed camera were used to estimate the vapor bubble characteristics. Results indicate that CHF increases with increasing mass flux and subcooling, while other distinct phenomena were observed including an overheated fluid region around the heater surface, condensation-induced water hammer events under 15 K subcooling, and converged local void fraction near the CHF.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"244 ","pages":"Article 126960"},"PeriodicalIF":5.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636571","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}

{"title":"Development of conduction optimized heat sinks with enhanced fluid flow path for passive cooling applications","authors":"Huanyu Zhao ,&nbsp;Hanyang Ye ,&nbsp;Huaxu Liang ,&nbsp;Pengfei Liu ,&nbsp;Yugo Asai ,&nbsp;Hideaki Miyamoto ,&nbsp;Ryo Kajitani ,&nbsp;Tsutomu Sakata ,&nbsp;Jin Yao Ho","doi":"10.1016/j.ijheatmasstransfer.2025.126963","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.126963","url":null,"abstract":"<div><div>Passive cooling, which utilizes natural convection and thermal radiation as the heat removal mechanisms, offers the advantages of high reliability, compactness, noise-free and low-energy-cost for thermal management of electronics. Unfortunately, existing passive heat sinks have limited geometrical variation to take advantage of the heat dissipation mechanisms, leading to large air flow paths and conduction resistances. To overcome these shortcomings of conventional passive heat sink designs, this study proposes three categories of passive heat sinks including parameter optimized cross-shaped plate fins (CF), topology optimized tree-shaped fins (TF) and hybridized cross-shaped and tree-shaped fins (CF-TF). While the CF heat sinks aim to reduce the air flow resistance to increase the average air velocity in the heat sinks and the TF heat sinks simultaneously reduce the fin conduction resistance and increase the wetted area for enhanced heat transfer, the CF-TF heat sinks synergize the advantages of both CF and TO topology to further enhance cooling performance. Using selective laser melting (SLM), a laser powder bed fusion (LPBF) process, we showed that the complex geometries of the heat sinks can be readily fabricated with short production time and at low cost, thus demonstrating the potential of utilizing LPBF for full scale production for these heat sinks. Furthermore, using Fourier transform infrared spectroscopy (FTIR), we showed that the SLM-fabricated heat sinks made from AlSi10Mg have the added advantage of significantly higher spectral emissivity, thus enhancing radiation heat dissipation as compared to conventionally casted aluminum alloy, Al6061. To evaluate the passive cooling performance of the new heat sinks, they were experimentally characterized in an environmental chamber. Our results showed that the best hybridized heat sink (CF0-TF16), cross-shaped heat sink (CF2), and topology optimized heat sink (TF16-R) exhibited 10.6 % 10.5 % and 10.0 % reduction in thermal resistance as compared to the best conventional plate fin heat sink, respectively. More importantly, the thermal enhancements of CF0-TF16, CF2 and TF16-R were achieved at the weight reductions of 14.8 %, 18.7 % and 20.7 %, respectively, as compared to the conventional heat sink. This research demonstrates the advantage of synergizing new thermal design strategy and additive manufacturing technique to develop passive cooling devices with simultaneous thermal efficiency enhancement and weight reduction.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"244 ","pages":"Article 126963"},"PeriodicalIF":5.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636449","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}