International Journal of Heat and Mass Transfer最新文献

{"title":"Criteria for revealing the onset and severity of solute inhomogeneity during directional solidification","authors":"Changjun Wang ,&nbsp;Zhongqiu Liu ,&nbsp;Baokuan Li ,&nbsp;Zhihe Dou","doi":"10.1016/j.ijheatmasstransfer.2025.127212","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127212","url":null,"abstract":"<div><div>Understanding and predicting the interplay between non-equilibrium flow dynamics and solidification behavior is pivotal for enhancing solute homogeneity in alloy solidification. This study employs a multiphase solidification model to simulate directional solidification processes under varying forced convection intensities and cooling rates. The model demonstrated robust predictive capabilities for columnar growing direction, channel segregation, and macrosegregation distribution. Building upon the method of the Rayleigh number (<em>Ra</em>), two dimensionless parameters, <em>Ch</em>_Ra and <em>Ch</em>_g, were formulated to characterize the state of interdendritic phase forces at the solidification front, including gravitational, thermosolutal buoyancy, and drag forces. A third parameter, <em>Ch</em>_v, was defined as the ratio of liquid flow velocity to columnar tip growth velocity. Combined with the Womersley number (<em>Wo</em>), which quantifies vortex shedding frequency in cylindrical flows, the correlations between these four dimensionless criteria and solute segregation were analyzed. Results revealed that <em>Ch</em>_v and <em>Wo</em> exhibited strong correlations with segregation severity, while <em>Ch</em>_Ra and <em>Ch</em>_g showed limited predictive utility. All criteria followed a similar evolutionary trajectory, aligning temporally with the formation of segregated channels in the ingot. Channel segregation ceased entirely when the maximum <em>Wo</em> value decreased to the critical range of 0.03–0.13 in this paper. These findings demonstrated that dimensionless criteria quantifying perturbations in interfacial flow and dendritic growth kinetics not only predicted the onset of segregated channels but also assessed the severity of solute inhomogeneity. This work establishes a novel dimensionless framework for predicting solute inhomogeneity, offering insights for optimizing solidification processes in casting applications.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"248 ","pages":"Article 127212"},"PeriodicalIF":5.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924064","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 study of condensation on mesh-covered surfaces","authors":"Qihan Chen ,&nbsp;Jingzhi Zhou ,&nbsp;Xunfeng Li ,&nbsp;Keyong Cheng ,&nbsp;Jieni Wang ,&nbsp;Xiulan Huai ,&nbsp;Gaosheng Wei","doi":"10.1016/j.ijheatmasstransfer.2025.127197","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127197","url":null,"abstract":"<div><div>Condensation is a crucial factor affecting the thermal performance of various types of heat pipes, with the porous wick structure playing a significant role in condensation. In this study, an experimental platform was set up in a saturated atmosphere to investigate the condensation process of steam on a vertical plane surface with sintered copper screen. The effects of subcooling, mesh number, layer, and screen structure on condensation mode, droplet departure diameter, and heat transfer coefficient (HTC) were explored. The results indicate that the condensation mode of the screen is different from that of the smooth copper surface, with the screen exhibiting a rivulet mode, whereas the smooth copper surface shows a dropwise mode. Sintering pressure affects the condensation mode of a single layer of 300-mesh screen but has minimal effect on the HTC. As subcooling increases, the droplet departure diameter on the screen surface also increases. The HTC of the screen is lower than that of the smooth copper surface, with reduction varying depending on the mesh number. The effect of the layer number of screen on the HTC varies with the mesh number. The thermal resistance of condensation in the vertical orientation is not linearly related to the layer number of screen, which contrasts with the conventional thermal resistance theory. Gradient screens appear to have a minimal impact on the HTC. This study proposes an empirical formula to predict the HTC suitable for vertical mesh-covered surfaces, with an average absolute error of 13.07%, significantly improving the thermal design accuracy of heat pipes compared to conventional heat resistance theories.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"248 ","pages":"Article 127197"},"PeriodicalIF":5.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924068","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":"A novel node-based smoothed polygonal finite element method with reconstructed strain fields for solving heat conduction problems","authors":"Shijie Zhao,&nbsp;Ruiping Niu,&nbsp;Xinglong Lu,&nbsp;Chengtao Wu,&nbsp;Siqing Li","doi":"10.1016/j.ijheatmasstransfer.2025.127195","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127195","url":null,"abstract":"<div><div>This paper presents a novel node-based smoothed polygonal finite element method (NS-PFEM) with reconstructed strain fields for solving heat conduction problems. In order to approximate the thermal strain field in Wachspress coordinates, the high-order smoothed thermal strain field is constructed using pick-out theory. Two high-order S-FEM models have been developed: NS-PFEM-1 for linear thermal strain and NS-PFEM-2 for second-order thermal strain. By employing the gradient smoothing technique, the shape function values on the boundaries of node-based smoothing domains are required rather than the derivatives of the shape function, which reduces the continuity requirements for shape functions. It also eliminates the isoparametric mapping in polygonal finite element methods, which can significantly enhance computational efficiency. The performance of the high-order NS-PFEMs is rigorously examined against the standard NS-PFEM, PFEM, FEM-T3, ES-FEM-T3 and the finite element software COMSOL. Numerical examples demonstrate that our high-order NS-PFEMs produce super convergent and nearly exact solutions in both temperature and energy at low computational costs.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"248 ","pages":"Article 127195"},"PeriodicalIF":5.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917677","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":"Heat transfer mechanisms in impinging jets: The role of vortex dynamics","authors":"Han Chen ,&nbsp;Kai Leong Chong","doi":"10.1016/j.ijheatmasstransfer.2025.127142","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127142","url":null,"abstract":"<div><div>This study employs direct numerical simulation (DNS) to investigate the interplay between coherent flow structures and wall heat transfer in a round impinging jet configuration with random perturbations at the inlet. The dimensionless nozzle-to-plate distance (<span><math><mrow><mi>H</mi><mo>/</mo><mi>D</mi><mo>=</mo><mn>2</mn><mo>.</mo><mn>0</mn></mrow></math></span>) and Prandtl number (<span><math><mrow><mi>P</mi><mi>r</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>7</mn></mrow></math></span>) are fixed, while the Reynolds number (<span><math><mrow><mi>R</mi><mi>e</mi></mrow></math></span>) varies between 2500 and 6000. The radial distribution of the heat transfer coefficient reveals multiple peaks for <span><math><mrow><mi>R</mi><mi>e</mi><mo>≥</mo><mn>2500</mn></mrow></math></span>. For the secondary maximum, visualization using the Q-criterion identifies nearly axisymmetric paired vortex rings close to the wall. Detailed analysis shows that the evolution of these vortical structures is directly linked to variations in shear stress and the Nusselt number. The unsteady separation-reattachment mechanism, driven by the interaction between vortex pairs and the wall, significantly enhances heat transfer in this region. At higher <span><math><mrow><mi>R</mi><mi>e</mi></mrow></math></span>, a third peak is observed, driven by a re-pairing phenomenon of separated vortex pairs. This process causes the vortex pairs to return to the wall, resulting in non-axisymmetric intensification of the local heat transfer coefficient. These findings deepen the understanding of how coherent structures govern heat transfer in impinging jets, providing insights that could guide the design of optimized industrial systems.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"248 ","pages":"Article 127142"},"PeriodicalIF":5.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917675","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":"Novel three-equation porous media model for prediction of compact heat exchanger and its case study for microtube bundle precooler","authors":"Yanbin Wu ,&nbsp;Ruina Xu ,&nbsp;Chao Wang ,&nbsp;Peixue Jiang","doi":"10.1016/j.ijheatmasstransfer.2025.127177","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127177","url":null,"abstract":"<div><div>Compact heat exchangers are extensively utilized across numerous technical domains due to their small volume, lightweight properties, and high compactness. However, the highly complex structure of compact heat exchangers results in high costs and large errors in traditional heat exchanger design methods, posing significant challenges to their structural design and performance evaluation. The porous media model effectively reduces computational costs by simplifying the physical model of heat exchanger into a porous media. However, due to its inability to accurately characterize the non-uniform nature of internal fluid flow and heat transfer, it also introduces significant errors in predicting the heat transfer performance. This study introduces a novel three-equation porous media model, which capable of comprehensively capturing the flow and heat transfer processes of external and internal fluids. Using this model, experimental studies and numerical simulations were conducted on performance of the compact microtube bundle precooler. The model results were validated against experimental data, demonstrating high consistency. The results indicated that the three-equation model effectively reduces computational costs and simultaneously accounts for the effects of non-uniform flow distributions, which improving precision by 7.4 % compared to the two-equation model. The non-uniform distribution of the external fluid results in a total pressure recovery coefficient of only 95.9 %, while the non-uniform distribution of the internal fluid reduces the precooler's heat transfer power by 4.1 %. Optimizing geometric parameters and flow conditions can effectively suppress non-uniform fluid flow and enhance heat transfer performance. The results validate the model's precision and effectiveness, establishing a solid basis for designing and optimizing heat exchangers.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"248 ","pages":"Article 127177"},"PeriodicalIF":5.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143916162","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 study on the temperature profiles evolution and flame aerodynamic extinction of boundary layer flames from pool fires under relatively strong cross airflows","authors":"Yanli Miao ,&nbsp;Yuhang Chen ,&nbsp;Xiaolei Zhang ,&nbsp;Michael A. Delichatsios ,&nbsp;Longhua Hu","doi":"10.1016/j.ijheatmasstransfer.2025.127160","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127160","url":null,"abstract":"<div><div>Storage tank fires are usually affected by wind gusts outdoors, which notably change fire behavior and cause flame aerodynamic extinction at the leading edge. To understand and accurately predict the onset and evolution of aerodynamic flame extinction stabilized over flat surface under relatively strong cross airflow, it is indispensable to make clear the heat and mass transfer process within the boundary layer flames from pool fires. This paper investigates gas-phase temperature profiles and flame aerodynamic extinction length evolution of boundary layer flames using burners in different sizes under relatively strong cross airflows. 2D gas-phase temperature profiles along the central plane at the leading edge of the boundary layer flames shift from stable and stratified state to unstable state with large fluctuations with the increased cross airflow speeds due to the onset of the flame aerodynamic extinction. Results showed that flame at the leading edge turns from laminar to turbulent diffusion flame along the streamwise direction. The flame aerodynamic extinction length increases as the fuel velocity or cross airflow speed increases, independent of the burner size. Flame extinction behavior is attributed to the decrease in flow residence time under relatively strong cross airflows, which can be represented by the Damköhler number. A satisfactory correlation is proposed to characterize the flame extinction length based on the local mass transfer and Damköhler number as a function of the fuel velocity and cross airflow speed. This study enhances understanding of the heat and mass transfer process of flame aerodynamic behavior.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"248 ","pages":"Article 127160"},"PeriodicalIF":5.0,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917680","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 van der Waals models on the phonon behavior and thermal conductivity of 2D graphene stacked structure","authors":"Renjie Hua ,&nbsp;Chenghao Diao ,&nbsp;Yunlei Jiang ,&nbsp;Lei Shi ,&nbsp;Chi Zhang ,&nbsp;Ruo Yu Dong ,&nbsp;Yuan Dong","doi":"10.1016/j.ijheatmasstransfer.2025.127202","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127202","url":null,"abstract":"<div><div>Graphene-related two-dimensional (2D) van der Waals (vdW) materials with strong carrier-carrier scattering and weak carrier-phonon coupling, offer the potential to exceed the limit of the solar to electric power conversion efficiency (PCE). Understanding and regulating the interactions between phonons, electrons, and photons in graphene-related 2D materials play an important role for further breakthroughs of applications. Here, we systematically study the phonon property and thermal conductivity (<em>k</em>) of graphene stacked structures in different vdW models including non-local correlation functions (vdW-DF-R and vdW-DF) and a semiempirical generalized gradient approximation (GGA) function (DFT-D2). We found that there are significant differences in their predictions of <em>k</em> and phonon behavior. The interlayer spacings of bilayer graphene (BLG) and graphite are 3.363 and 3.34 Å by vdW-DF-R and vdW-DF, respectively, which are closest to experimental value (3.35 Å). The predicted room-temperature <em>k</em> of BLG and graphite are ∼152.8 and 1162 W/m-K by vdW-DF-R agreeing well with previous experiments. Comprehensive understanding of phonon properties show that compared with DFT-D2, the non-local vdW model confirms stronger anharmonic scattering of ZA modes in BLG than that in graphite. We expect that this work could facilitate the device designs with high thermal conductivity or high photoelectrical conversion efficiency based on vdW-stacked structures.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"248 ","pages":"Article 127202"},"PeriodicalIF":5.0,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917674","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":"Pool boiling performance enhancement using a scalable thermally sprayed porous copper coating","authors":"Rajesh Kumar,&nbsp;B. Premachandran","doi":"10.1016/j.ijheatmasstransfer.2025.127199","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127199","url":null,"abstract":"<div><div>Modified surfaces have gained significant attention from researchers for enhancing boiling performance, offering significant advantages such as effective thermal management and increased efficiency in power generation. However, large-scale and robust enhanced surfaces are still rare. In this study, a cost-effective and scalable coating technique, i.e., thermal plasma spray, is proposed for developing porous copper coatings to simultaneously enhance both critical heat flux (CHF) and heat transfer coefficient (HTC) in boiling. The pool boiling heat transfer characteristics of the coated surfaces with de-ionized water at the atmospheric pressure are presented. The study mainly focusses on the influence of surface characteristic parameters on the heat transfer performance. The detailed surface properties of the newly developed surfaces are characterized using the field emission scanning electron microscopy, X-ray diffraction and optical profilometry. The porosity and roughness of the coatings are tuned using different percentage of sacrificial material in the coating feedstock powder. The wettability and wicking properties of the coated surfaces are also characterized and their effect on the heat transfer is discussed in detail. The pool boiling phenomenon is captured using high-speed imaging and the corresponding bubble dynamics is discussed. It has been observed that the coated surfaces provide superior heat transfer performance than the uncoated surface. The best-performing coated surface exhibits a HTC of 290.3 kW/m²K and a CHF of 2700.3 kW/m², representing enhancements of 5.1 times in HTC and 2.3 times in CHF than the uncoated surface. The enhancement ratio of CHF on coated surfaces demonstrates a linear relationship with the nondimensional wicking number (<em>Wi</em>). Hence, the surface wickability plays an important role in enhancing the CHF.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"247 ","pages":"Article 127199"},"PeriodicalIF":5.0,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908158","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":"Impact of fluid flow on the thermal boundary layer dynamics in turbulent liquid metal Rayleigh–Bénard convection","authors":"Felix Schindler,&nbsp;Nayoung Kim,&nbsp;Tobias Vogt,&nbsp;Sven Eckert","doi":"10.1016/j.ijheatmasstransfer.2025.127129","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127129","url":null,"abstract":"<div><div>The dynamics of the thermal boundary layer are studied experimentally in turbulent Rayleigh–Bénard convection at <span><math><mrow><mn>3</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>7</mn></mrow></msup><mo>≤</mo><mi>R</mi><mi>a</mi><mo>≤</mo><mn>3</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>9</mn></mrow></msup></mrow></math></span>. The local boundary layer (BL) height and the flow structures are measured in the ternary alloy GaInSn (Prandtl number <span><math><mrow><mi>P</mi><mi>r</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>03</mn></mrow></math></span>) contained in a cylindrical sample with an aspect ratio of <span><math><mrow><mi>Γ</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>5</mn></mrow></math></span>. The data, which are recorded at two measurement positions in the center of the plate and near the side wall, reveal disruptive disturbances of the thermal BL at the top plate, the intensity and frequency of which vary with the Rayleigh number <span><math><mrow><mi>R</mi><mi>a</mi></mrow></math></span>. We observe the occurrence of pronounced peaks in the BL thickness, whereby the number of these events relative to the free-fall time <span><math><msub><mrow><mi>t</mi></mrow><mrow><mi>f</mi><mspace></mspace><mi>f</mi></mrow></msub></math></span> decreases with increasing <span><math><mrow><mi>R</mi><mi>a</mi></mrow></math></span> while their mean duration increases. The events of this intermittent significant broadening of the thermal boundary layer are detectable in the temporal behavior of the Nusselt number and correlate strongly with the occurrence of a vertical flow moving away from the plate surface. This suggests that the peaks in the thermal BL height coincide with the formation and detachment of thermal plumes on the copper plate. An interesting aspect of our measurements is the observation of BL disturbances at the measurement position in the center of the plate, which is dominated by a wall-parallel shear flow of large-scale circulation (LSC), just as frequently as in the region near the side wall, where impingement or detachment of thermal plumes should occur.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"247 ","pages":"Article 127129"},"PeriodicalIF":5.0,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908161","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":"Trans-scale influence of molecular states and intermolecular interactions on self-diffusion","authors":"Meysam E. Arampour ,&nbsp;Hanhui Jin ,&nbsp;Jianren Fan","doi":"10.1016/j.ijheatmasstransfer.2025.127109","DOIUrl":"10.1016/j.ijheatmasstransfer.2025.127109","url":null,"abstract":"<div><div>Understanding self-diffusion in fluids is critical for advancing material transport theories and optimizing engineering applications. This study employs Molecular Dynamics (MD) simulations to investigate how molecular-scale interactions (<span><math><mi>σ</mi></math></span>, <span><math><mi>ϵ</mi></math></span>) and molecular energy states (<span><math><mrow><msub><mrow><mi>E</mi></mrow><mrow><mi>K</mi></mrow></msub><mo>,</mo><msub><mrow><mi>E</mi></mrow><mrow><mi>P</mi></mrow></msub></mrow></math></span>) influence self-diffusion. Building on these insights, a novel mathematical model is developed, incorporating these parameters, and validated against experimental data, achieving superior predictive accuracy over existing models with Average Absolute Deviation (AAD = 0.7%). The findings provide a quantitative framework linking molecular interactions to macroscopic transport phenomena, offering deeper insights into self-diffusion in nano-engineering applications.</div></div>","PeriodicalId":336,"journal":{"name":"International Journal of Heat and Mass Transfer","volume":"247 ","pages":"Article 127109"},"PeriodicalIF":5.0,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912436","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}