发布求助
文献互助 智能选刊 最新文献

Journal of Thermophysics and Heat Transfer最新文献

筛选
英文 中文
Natural Convection Around Three Horizontal Cylinders in Vertical Array: A Numerical Approach 垂直阵列中三个水平圆柱体周围的自然对流：数值方法
IF 2.1 4区 工程技术
Journal of Thermophysics and Heat Transfer Pub Date : 2024-04-05 DOI: 10.2514/1.t6925
Manoj Kumar Dash, Santosh Kumar Senapati, Aurovinda Mohanty
{"title":"Natural Convection Around Three Horizontal Cylinders in Vertical Array: A Numerical Approach","authors":"Manoj Kumar Dash, Santosh Kumar Senapati, Aurovinda Mohanty","doi":"10.2514/1.t6925","DOIUrl":"https://doi.org/10.2514/1.t6925","url":null,"abstract":"<p>The present numerical study explores the flow physics and heat transfer characteristics around three unconfined inline horizontally placed cylinders arranged in a vertical array subjected to ambient air. It investigates the effect of Rayleigh number (i.e., 10<sup>2</sup> ≤ <i>Ra</i> ≤ 10<sup>6</sup>) and the center-to-center spacing (1≤ <i>S/D</i> ≤ 9). The study shows that the augmentation or reduction of heat transfer rate from an individual cylinder in the array to that of a single unconfined cylinder under identical conditions strongly depends on the separation distance and Rayleigh number. Moreover, the average <i>Nu</i> from the bottom cylinder deteriorates only at very close spacing, whereas after <i>S/D</i> ≥ 3, it attains an asymptotic value to that of a single cylinder. The heat transfer rates from the middle and top cylinders relative to a single cylinder also deteriorate drastically at close spacing. In contrast, a slight enhancement is observed at relatively large spacing and higher <i>Ra</i>.</p>","PeriodicalId":17482,"journal":{"name":"Journal of Thermophysics and Heat Transfer","volume":"51 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140570434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Inverse Estimation of Thermal Contact Resistance Between Two Layers of Cylindrical Wall 圆柱形壁两层之间热接触电阻的反向估算
IF 2.1 4区 工程技术
Journal of Thermophysics and Heat Transfer Pub Date : 2024-04-05 DOI: 10.2514/1.t6952
Bin Li, Qiang Liu, Keli He
{"title":"Inverse Estimation of Thermal Contact Resistance Between Two Layers of Cylindrical Wall","authors":"Bin Li, Qiang Liu, Keli He","doi":"10.2514/1.t6952","DOIUrl":"https://doi.org/10.2514/1.t6952","url":null,"abstract":"<p>This study presents a method for estimating the space-dependent thermal contact resistance between the two-layer walls of a furnace using the boundary element method (BEM) and conjugate gradient method (CGM) for the heat conduction problem. The global solution equation in matrix form is derived using the interface conditions, and the BEM is used to solve the direct problem. The CGM minimizes the objective function and calculates the sensitivity coefficients with the complex variable derivation method (CVDM). Comparative results show that the present approach is more accurate, stable, and efficient than the conventional CGM, which is attributed to the calculation of the sensitivity coefficients by CVDM. The effects of the value of thermal contact resistance, thermal conductivity ratio, Biot number, initial guess, measurement error, and the number and position of measurement points on the inversion results are also analyzed. Finally, the effectiveness of this approach is demonstrated through numerical examples, and the inversion results show its stability, efficiency, and accuracy in identifying different and complex distributions of thermal contact resistance. Furthermore, this approach is feasible for nonintrusive measurement, which is very meaningful in practical applications.</p>","PeriodicalId":17482,"journal":{"name":"Journal of Thermophysics and Heat Transfer","volume":"51 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140570359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Effects of Thermal and Chemical Nonequilibrium on Response of Charring Ablative Materials 热平衡和化学非平衡对烧焦烧蚀材料响应的影响
IF 2.1 4区 工程技术
Journal of Thermophysics and Heat Transfer Pub Date : 2024-04-03 DOI: 10.2514/1.t6786
Volkan Coskun, Cuneyt Sert
{"title":"Effects of Thermal and Chemical Nonequilibrium on Response of Charring Ablative Materials","authors":"Volkan Coskun, Cuneyt Sert","doi":"10.2514/1.t6786","DOIUrl":"https://doi.org/10.2514/1.t6786","url":null,"abstract":"<p>A material response solver that predicts the response of charring ablative materials under different degrees of physical modeling complexity is developed. The solver provides a versatile environment for engineering analyses and incorporates a third-party library for the evaluation of thermodynamic/transport properties of pyrolysis gas mixture and chemical kinetics, if necessary. Thermal nonequilibrium between the solid and the gas phases is considered using the two-equation model. A novel reactor network approach is used for modeling pyrolysis gas flow inside the porous ablative material, allowing simulations with various gas compositions and reaction mechanisms. Effects of chemical and thermal nonequilibrium and influences of the porosity and permeability of the porous structure on the response of charring ablative materials are explored. It is observed that higher porosity and smaller permeability values induce local thermal equilibrium, and chemical reactions increase the temperature differences between the phases.</p>","PeriodicalId":17482,"journal":{"name":"Journal of Thermophysics and Heat Transfer","volume":"60 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140570343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Contact Angles of Water on Different Metals 水在不同金属上的接触角
IF 2.1 4区 工程技术
Journal of Thermophysics and Heat Transfer Pub Date : 2024-03-12 DOI: 10.2514/1.t6935
Muhammed Murat Aksoy, Yildiz Bayazitoglu
{"title":"Contact Angles of Water on Different Metals","authors":"Muhammed Murat Aksoy, Yildiz Bayazitoglu","doi":"10.2514/1.t6935","DOIUrl":"https://doi.org/10.2514/1.t6935","url":null,"abstract":"Journal of Thermophysics and Heat Transfer, Ahead of Print. <br/>","PeriodicalId":17482,"journal":{"name":"Journal of Thermophysics and Heat Transfer","volume":"42 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140107319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Comment on “Unsteady Flow of a Nanofluid over a Sphere with Nonlinear Boussinesq Approximation” 关于 "采用非线性布森斯克近似的球面上纳米流体的非稳态流动 "的评论
IF 2.1 4区 工程技术
Journal of Thermophysics and Heat Transfer Pub Date : 2024-02-23 DOI: 10.2514/1.t6929
Asterios Pantokratoras
{"title":"Comment on “Unsteady Flow of a Nanofluid over a Sphere with Nonlinear Boussinesq Approximation”","authors":"Asterios Pantokratoras","doi":"10.2514/1.t6929","DOIUrl":"https://doi.org/10.2514/1.t6929","url":null,"abstract":"Journal of Thermophysics and Heat Transfer, Ahead of Print. <br/>","PeriodicalId":17482,"journal":{"name":"Journal of Thermophysics and Heat Transfer","volume":"163 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139950654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Uncertainty Analysis of Slug Calorimeters in the NASA HyMETS Arc-Jet Facility 美国国家航空航天局 HyMETS 弧形喷射设施中弹头量热计的不确定性分析
IF 2.1 4区 工程技术
Journal of Thermophysics and Heat Transfer Pub Date : 2024-02-23 DOI: 10.2514/1.t6883
Andrew J. Brune, Chelsey C. Morrow
{"title":"Uncertainty Analysis of Slug Calorimeters in the NASA HyMETS Arc-Jet Facility","authors":"Andrew J. Brune, Chelsey C. Morrow","doi":"10.2514/1.t6883","DOIUrl":"https://doi.org/10.2514/1.t6883","url":null,"abstract":"Journal of Thermophysics and Heat Transfer, Ahead of Print. <br/>","PeriodicalId":17482,"journal":{"name":"Journal of Thermophysics and Heat Transfer","volume":"255 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139950484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Radiative Transfer in Finite Concentric Cylinders by the Zonal Monte Carlo Method 用纵向蒙特卡洛法研究有限同心圆中的辐射传递
IF 2.1 4区 工程技术
Journal of Thermophysics and Heat Transfer Pub Date : 2024-02-21 DOI: 10.2514/1.t6923
Walter W. Yuen
{"title":"Radiative Transfer in Finite Concentric Cylinders by the Zonal Monte Carlo Method","authors":"Walter W. Yuen","doi":"10.2514/1.t6923","DOIUrl":"https://doi.org/10.2514/1.t6923","url":null,"abstract":"Journal of Thermophysics and Heat Transfer, Ahead of Print. <br/>","PeriodicalId":17482,"journal":{"name":"Journal of Thermophysics and Heat Transfer","volume":"31 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139921232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Inverse Estimation of Dynamic Heat Flux Using Proportional Integral Derivative Control 利用比例积分微分控制反向估算动态热通量
IF 2.1 4区 工程技术
Journal of Thermophysics and Heat Transfer Pub Date : 2024-02-13 DOI: 10.2514/1.t6855
Hui Wang, Tao Zhu, Xinxin Zhu, Xiaojuan Bai, Kai Yang, Qingtao Yang
{"title":"Inverse Estimation of Dynamic Heat Flux Using Proportional Integral Derivative Control","authors":"Hui Wang, Tao Zhu, Xinxin Zhu, Xiaojuan Bai, Kai Yang, Qingtao Yang","doi":"10.2514/1.t6855","DOIUrl":"https://doi.org/10.2514/1.t6855","url":null,"abstract":"Journal of Thermophysics and Heat Transfer, Ahead of Print. <br/>","PeriodicalId":17482,"journal":{"name":"Journal of Thermophysics and Heat Transfer","volume":"18 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139766246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Nonlinear Estimators for Hypersonic Heat Flux Reconstruction 高超音速热通量重构的非线性估算器
IF 2.1 4区 工程技术
Journal of Thermophysics and Heat Transfer Pub Date : 2024-02-13 DOI: 10.2514/1.t6888
Nhat M. Nguyen, Mathew L. Ruda, Luca Massa
{"title":"Nonlinear Estimators for Hypersonic Heat Flux Reconstruction","authors":"Nhat M. Nguyen, Mathew L. Ruda, Luca Massa","doi":"10.2514/1.t6888","DOIUrl":"https://doi.org/10.2514/1.t6888","url":null,"abstract":"Journal of Thermophysics and Heat Transfer, Ahead of Print. <br/>","PeriodicalId":17482,"journal":{"name":"Journal of Thermophysics and Heat Transfer","volume":"145 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139766175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Experiment on Heat Exchanger Using Innovative Coils and Phase Change Material/MXene Nanofluids 使用创新线圈和相变材料/MXene 纳米流体的热交换器实验
IF 2.1 4区 工程技术
Journal of Thermophysics and Heat Transfer Pub Date : 2024-02-13 DOI: 10.2514/1.t6897
Jahar Sarkar, Rashmi Rekha Sahoo
{"title":"Experiment on Heat Exchanger Using Innovative Coils and Phase Change Material/MXene Nanofluids","authors":"Jahar Sarkar, Rashmi Rekha Sahoo","doi":"10.2514/1.t6897","DOIUrl":"https://doi.org/10.2514/1.t6897","url":null,"abstract":"Journal of Thermophysics and Heat Transfer, Ahead of Print. <br/>","PeriodicalId":17482,"journal":{"name":"Journal of Thermophysics and Heat Transfer","volume":"18 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139766182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信