Xue Jing Hu, Cheng Hao Ye, Mei Qing Xia, Jia Xing Li, Pei Hong Zhang
{"title":"Experimental study of the effect of delayed ignition on the ethanol spill fire behaviour with different channel width in tunnel environment","authors":"Xue Jing Hu, Cheng Hao Ye, Mei Qing Xia, Jia Xing Li, Pei Hong Zhang","doi":"10.1016/j.icheatmasstransfer.2024.108335","DOIUrl":"10.1016/j.icheatmasstransfer.2024.108335","url":null,"abstract":"<div><div>Tanker trucks are susceptible to combustible liquid spill fire after an accident in the transport process. When the spill fire accident occurs in a road tunnel, the coupling of the kinetic properties of the diffused fuel and the heat transfer mechanism of the fire plume to the fuel layer is more complicated under the constraints of the tunnel environment, which can cause serious hazards to the surrounding environment. In this paper, instantaneous ignition and different delayed ignition time such as 10 s, 20 s, and 30 s were tested using ethanol at a spill rate of 78 ml/min on 10 cm, 15 cm, 20 cm, and 30 cm width steel channels in a model tunnel. Parameters such as burning area, spread rate and burning rate were analysed based on electronic balance data, thermocouple data and MATLAB image processing data. The findings show that an increase in substrate width and delayed ignition time results in an increase in the maximum burning area. The flame spread rate decreases with increasing substrate width at the same ignition time and increases with increasing delayed ignition time at the same width substrate. A spread rate prediction model was developed by analysing the forces on the fuel layer during the spread phase. A model for predicting the average burning rate during the spread phase was developed by taking into account the different absorption rates of radiant heat feedback by different fuel layer thicknesses during the spread phase in the tunnel space. A model for predicting the maximum burning area of delayed ignition ethanol spill fire on substrate of different width in tunnel was developed by combining the spread rate model and the burning rate model in the spreading phase. The results of this study are important reference for understanding the spreading and burning characteristics of spill fire accidents during road transport and the associated risk assessment.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"160 ","pages":"Article 108335"},"PeriodicalIF":6.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698783","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":"Evaluation of flow and heat transfer behavior in parallel flow copper electro-refining cell with different inlet arrangements","authors":"Xiaoyu Huang , Mingyue Wang , Xiaoyan Huang , Shan Qing , Zixi Tian","doi":"10.1016/j.icheatmasstransfer.2024.108353","DOIUrl":"10.1016/j.icheatmasstransfer.2024.108353","url":null,"abstract":"<div><div>Parallel flow copper electro-refining cell technology has been developed for over a decade, and the flow field in these cells is significantly influenced by the arrangement of the electrolyte inlets. Four computational fluid dynamics models were developed to compare the flow and heat transfer characteristics of the electrolyte under varying electrolyte inlet arrangements. These models include bi-directional parallel flow (BPF), staggered parallel flow (SPF), top inlet unidirectional parallel flow (UPF-T), and bottom inlet unidirectional parallel flow (UPF-B). Flow and heat transfer simulations were conducted for each model. The simulation results indicate that the BPF and SPF electro-refining cells exhibit varying degrees of kinetic energy loss, which leads to lower volume-weighted average velocities and impacts the rapid circulation of the electrolyte. The UPF-B is the most effective in terms of both flow uniformity and flow velocity, with the UPF-T following closely behind. The temperature in the inter-pole area is elevated when the SPF and UPF-T are arranged, which is more conducive to the diffusion of copper ions. The copper cathode production efficiency and deposition uniformity are enhanced by the UPF-B arrangement, which enables the liquid to be supplied to the inter-pole area more rapidly and uniformly.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"160 ","pages":"Article 108353"},"PeriodicalIF":6.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698782","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":"Adjoint shape optimization for enhanced heat transfer in sweeping jet impingement on concave surface","authors":"Jie Tang , Ziyan Li","doi":"10.1016/j.icheatmasstransfer.2024.108363","DOIUrl":"10.1016/j.icheatmasstransfer.2024.108363","url":null,"abstract":"<div><div>The sweeping jet has gained increasing attention in the field of impingement heat transfer due to its unique advantages. Current research primarily focuses on impinging on flat walls, with less attention given to curved wall scenarios. Recent studies have shown that the trapped vortex ring generated by a sweeping jet impinging on a curved surface can limit the effective cooling range. Therefore, modifying the structure of the fluidic oscillator offers considerable potential for enhancing the impingement heat transfer. In this paper, the shape optimization of the conventional fluidic oscillator is performed using an adjoint optimization method. Numerical simulations were first conducted with a jet Reynolds number of 10,308, an impingement distance of four times the jet hydraulic diameter, and an impingement wall radius of ten times the jet hydraulic diameter as the operating conditions. To accurately reproduce the jet dissipation characteristics and the trapped vortex ring structure, the turbulent dissipation rate was modeled with a well calibrated Generalized <span><math><mi>k</mi></math></span>-<span><math><mi>ω</mi></math></span> (GEKO) model. The optimized structure aimed to minimize the surface-averaged temperature. The results indicated that the improved structure reduced the jet's oscillation angle, resulting in a more concentrated jet velocity and less dissipation. This intensified the strength of the wall jet in the non-oscillation plane and pushed the trapped vortex ring farther outward, thus increasing the effective cooling range. Time- and surface-averaged results on the impingement wall revealed that the Nusselt number of the improved structure increased by 11.6%, and the temperature decreased by 2.4 K compared to the baseline structure.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"159 ","pages":"Article 108363"},"PeriodicalIF":6.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704900","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}
Dan Hua, Lizeen Zhang, Yi Chen, Jintao Chen, Feng Yao
{"title":"Experimental investigation of enhanced heat transfer in plate heat exchanger under heaving and yawing conditions","authors":"Dan Hua, Lizeen Zhang, Yi Chen, Jintao Chen, Feng Yao","doi":"10.1016/j.icheatmasstransfer.2024.108307","DOIUrl":"10.1016/j.icheatmasstransfer.2024.108307","url":null,"abstract":"<div><div>An investigation into the heat transfer characteristics of plate heat exchangers operating within cooling systems of offshore floating wind turbines under marine sloshing conditions is presented herein. Utilizing a six-degree-of-freedom motion platform in conjunction with a plate heat exchanger performance testing setup, the effects of yawing and heaving motions, mass flow rates, sloshing amplitudes, frequencies, and intensities on the heat transfer characteristics of R134a plate heat exchangers were systematically explored. The Results indicate that both heaving and yawing significantly enhance the heat transfer performance, with heaving conditions showing a more pronounced effect. At a heaving amplitude of 100 mm and a frequency of 0.6 Hz, the convective heat transfer coefficient of R134a can be increased by up to 61.80 %. Heaving amplitude has a more substantial impact on heat transfer performance compared to yawing amplitude. The heat transfer correlation for R134a plate heat exchangers under yawing and heaving conditions has been presented, showing good predictive capabilities with deviations confined within ±15 %.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"159 ","pages":"Article 108307"},"PeriodicalIF":6.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704896","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":"An experimental comparative analysis and machine learning prediction on the evaporation characteristics of R1234yf and R290/R13I1 in a plate heat exchanger","authors":"Rajendran Prabakaran , Palanisamy Dhamodharan , Thangamuthu Mohanraj , Sung Chul Kim","doi":"10.1016/j.icheatmasstransfer.2024.108357","DOIUrl":"10.1016/j.icheatmasstransfer.2024.108357","url":null,"abstract":"<div><div>The present research attempts to comprehensively compare the evaporation characteristics of a novel R290/R13I1 (35/65 % by mass) with R1234yf in an offset-strip fin embedded plate heat exchanger. The impact of various testing phenomena, namely saturation temperature (T<sub>s</sub>) (278 to 288 K), heat flux (q) (4000 to 10,000 W m<sup>−2</sup>), entry vapor quality (x<sub>i</sub>) (0.1 to 0.8), and mass flux (G) (40 to 80 kg m<sup>−2</sup> s<sup>−1</sup>) have been explored. Meanwhile, highly potential machine learning algorithms (MLAs) namely Linear Regression (LR), Multi-Layer Perceptron (MLP), and Extreme Gradient Boost regression (XGB) have been employed to predict the evaporation heat transfer coefficient (EHTC) and evaporation frictional pressure drop (EFPD) of the refrigerants. Findings revealed that the EHTC of R290/R13I1 is significantly lower than that of R1234yf by 7.9–38.8 % in the nucleation boiling or low mean vapor quality (x<sub>m</sub>) domain, whereas it had superior EHTC by up to 18.2 % in the convective boiling domain (high x<sub>m</sub>). Interestingly, there was a dry-out incidence at mid-x<sub>m</sub> ranges (0.35–0.5) for both refrigerants, except for R290/R13I1 at a higher G of 80 kg m<sup>−2</sup> s<sup>−1</sup>. In all cases (except at 10000 W m<sup>−2</sup>), the EFPD of R290/R13I1 increased by 0.3–11.1 % compared to that of R1234yf. The evaporation thermo-hydraulic performance (ETHP) factor analysis revealed that utilizing R290/R13I1 could perform satisfactorily in the convective boiling domain (x<sub>m</sub> > 0.5) with an ETHP factor ranging between 0.8 and 1.08, especially at high q, high T<sub>s</sub>, and low G conditions. New empirical correlations have been developed based on the experimental dataset for the EHTC and EFPD of the considered refrigerants with an mean absolute error (MAE) of up to 14.7 % and 13.4 %, respectively. Among the three MLAs with different enhancement methods, the EHTC and EFPD predictions using MLP, in combination with principal component analysis and hyperparameter tuning, had superior performance, with MAEs of 0.1119 and 0.0581, respectively, for R1234yf, while they were 0.1726 and 0.0482 for R290/R13I1.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"159 ","pages":"Article 108357"},"PeriodicalIF":6.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704898","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 condensation heat transfer correction based on non-equilibrium film theory and degradation mechanism for zeotropic mixture","authors":"Zhantao Wu, Yangkai Xia, Xianglong Luo, Yingzong Liang, Jianyong Chen, Zhi Yang, Ying Chen","doi":"10.1016/j.icheatmasstransfer.2024.108342","DOIUrl":"10.1016/j.icheatmasstransfer.2024.108342","url":null,"abstract":"<div><div>Energy conversion based on thermodynamic cycle using zeotropic mixtures is an effective strategy for advancing global low-carbon development in the context of carbon neutrality. However, the deficiencies of existing heat transfer mixtures models and the complex condensation mechanisms of zeotropic refrigerants pose significant challenges to the size design and optimization of heat exchangers, which can directly impact the economic efficiency and operational safety of thermodynamic cycle systems. Thus, there is an urgent need for a simplified and universal correction method that incorporates mixing effects to improve prediction accuracy of conventional models. In the present study, a non-equilibrium condensation heat transfer model based on film theory was developed and validated to analyze the influence of various parameters on heat transfer degradation and heat transfer coefficients of zeotropic mixtures inside horizontal circular tubes. Through multi-factor sensitivity analysis and dimensionless method, a degradation factor characterizing the gradient contributions to heat transfer degradation was proposed. Based on the proposed factor, a simplified non-equilibrium model considering mixing effect without complex computations was developed. Using the new developed non-equilibrium model, prediction of a database containing 1813 experimental points was conducted. A deviation of 15.7 % between the predicted values and the experimental values was achieved, demonstrating remarkable predictive accuracy and significant generalizability compared to existing mixture models. Extending this corrective method to various pure substance models resulted in a significant improvement in accuracy.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"160 ","pages":"Article 108342"},"PeriodicalIF":6.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698877","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}
Ja Hyun Ku , Heepyo Hong , Jae Soon Kim , Hyoung Kyu Cho
{"title":"Wall heat partitioning model with bubble tracking method for nucleate boiling considering conjugate heat transfer coupled with OpenFOAM","authors":"Ja Hyun Ku , Heepyo Hong , Jae Soon Kim , Hyoung Kyu Cho","doi":"10.1016/j.icheatmasstransfer.2024.108364","DOIUrl":"10.1016/j.icheatmasstransfer.2024.108364","url":null,"abstract":"<div><div>This study aimed to predict boiling heat transfer more accurately by incorporating the bubble tracking method and conjugate heat transfer into the conventional heat partitioning model. The bubble tracking method is developed to predict boiling heat transfer by continuously simulating the size and location of individual bubbles and simulating realistic phenomena in boiling, unlike previous methods for predicting boiling heat transfer. The method considers several factors that were not previously considered, including the stochastic behavior of the boiling process, interaction between bubbles, interaction between nucleation sites, and microlayer evaporation considering the thickness and radius of the microlayer. Additionally, it was validated for pool boiling experiments. In this study, the model was improved by incorporating conjugate heat transfer for the wall temperature variation that was not considered in the previous study, and the method was also validated with the pool boiling experiment. In this validation, the temporal and spatial surface temperature variation seen in the single-bubble experiment was well simulated, and the trends in heat flux observed in the multi-bubble experiment were well predicted.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"160 ","pages":"Article 108364"},"PeriodicalIF":6.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698875","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}
Igor Karpilov , Viacheslav Papkov , Dmitry Pashchenko
{"title":"Comparative analysis of diffusion mechanisms inside porous media for steam methane reforming over Ni-Al2O3 catalyst","authors":"Igor Karpilov , Viacheslav Papkov , Dmitry Pashchenko","doi":"10.1016/j.icheatmasstransfer.2024.108322","DOIUrl":"10.1016/j.icheatmasstransfer.2024.108322","url":null,"abstract":"<div><div>The catalyst particles are widely used in steam methane reforming. The main mass transport mechanism inside the catalyst particles is diffusion. Several diffusion mechanisms are used by researchers for the investigations, and no consensus has been reached on which one is more suitable. This study aims to find the appropriate diffusion mechanism for the steam methane reforming. The effect of various diffusion mechanisms on the predictive performances of the steam methane reforming process was investigated for Ni-Al<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>O<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> catalyst particles. Four diffusion mechanisms were considered: constant diffusion coefficient, Lewis number correlation, kinetic theory, and Bosanquet approximation. The CH<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span> conversion, species and temperature distributions were compared for various operating temperatures, residence time, particle diameters, pressure and H<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>O/CH<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span> ratio (<span><math><mi>β</mi></math></span>). For the similar operating and design parameters, CH<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span> conversion obtained for Bosanquet approximation and Lewis number correlation showed close to similar results with average deviation of 2%. Other diffusion models have failed to correctly predict the CH<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span> conversion. It was shown that the choice of an appropriate diffusion mechanism is important for the numerical prediction of the steam methane reforming performances.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"159 ","pages":"Article 108322"},"PeriodicalIF":6.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704346","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}
Daniel Sanchez-Señoran , Miguel A. Reyes-Belmonte , Meryem Farchado , Marina Casanova , Antonio L. Avila-Marin
{"title":"Numerical characterisation of the convective heat transfer and fluid flow for inline woven wire meshes in solar volumetric receivers","authors":"Daniel Sanchez-Señoran , Miguel A. Reyes-Belmonte , Meryem Farchado , Marina Casanova , Antonio L. Avila-Marin","doi":"10.1016/j.icheatmasstransfer.2024.108269","DOIUrl":"10.1016/j.icheatmasstransfer.2024.108269","url":null,"abstract":"<div><div>In solar tower systems, metallic woven wire meshes following an inline arrangement are a promising geometry for commercial application in open volumetric receivers (OVRs). To assess their potential, two main parameters, with two different methodologies, need to be analysed in depth: the convective heat transfer coefficient (HTC) and the pressure drop per unit length (ΔP/L). In this study, three wire diameters, 0.7, 0.4 and 0.1 mm, with a fixed porosity of 80 %, have been selected to establish a baseline for the HTC and the ΔP/L sensitivity studies. In the HTC methodology, six air inlet velocities between 0.5 and 5 m/s, and constant solid matrix temperatures of 700, 1100 and 1500 K, have been evaluated. For the ΔP/L methodology, six air inlet velocities between 0.5 and 5 m/s and a constant solid matrix temperature of 300 K was used.</div><div>For each thermo-fluid-dynamic attribute, HTC and ΔP/L, and each wire diameter (0.7, 0.4 and 0.1 mm) with 80 % porosity, an individual correlation is presented resulting in a total of six individual correlations. In addition, two generalised correlations, one of each thermo-fluid-dynamic attribute, for 80 % porosity and wire diameter ranging from 0.1 to 0.7 mm are shown, taking into account the specific geometrical parameters of the wire mesh lattices. The generalised correlations obtained in the study present deviations under 7 % from the CFD results in both thermo-fluid-dynamic attributes, showing results as good as the ones obtained with the individual correlations. As a result, it is demonstrated that the geometrical parameters must be included in the correlations used to predict the thermo-fluid-dynamic attributes in wire mesh lattices. All the correlations have been validated through porous models with good agreement and they would work for future optimisation studies.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"159 ","pages":"Article 108269"},"PeriodicalIF":6.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704897","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}
Maysam Gholampour , Zahra Hashemi , Ming Chang Wu , Ting Ya Liu , Chuan Yi Liang , Chi-Chuan Wang
{"title":"Parameterized physics-informed neural networks for a transient thermal problem: A pure physics-driven approach","authors":"Maysam Gholampour , Zahra Hashemi , Ming Chang Wu , Ting Ya Liu , Chuan Yi Liang , Chi-Chuan Wang","doi":"10.1016/j.icheatmasstransfer.2024.108330","DOIUrl":"10.1016/j.icheatmasstransfer.2024.108330","url":null,"abstract":"<div><div>Parameterization in computational fluid dynamics is crucial for exploring design ranges and optimizing systems. Traditional methods struggle with efficient parameter variation, requiring multiple simulations and significant computational resources. This study evaluates physics-informed neural networks (PINNs) to address this challenge, highlighting its ability to handle multiple parameter variations, including geometric configurations, Rayleigh, and Prandtl numbers, within different intervals in a single training process. The study focuses on a highly challenging problem in PINNs: transient natural convection, characterized by transient coupled equations with source terms. Although some issues have been previously addressed, applying pure physics-driven PINNs to transient natural convection and parameterization challenges represents a novel approach. The model, benchmarked against finite difference, finite element, and finite volume methods, shows excellent predictive accuracy but surpasses them in versatility and robustness when handling several parameter variations simultaneously. The results show that the computational cost increases by 15 % for parameterizing a single parameter and by 46 % for parameterizing all three parameters simultaneously. Moreover, special normalization techniques for large-scale parameters, such as Rayleigh number, are crucial for parameterized models; without them, the training process may diverge. This paper provides insights and techniques to overcome the challenges in parameterization for coupled problems with source terms.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"159 ","pages":"Article 108330"},"PeriodicalIF":6.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704895","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}