Computational Thermal Sciences最新文献

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A control-volume finite element method for the prediction of three-dimensional diffusion-type phenomena in anisotropic media 预测各向异性介质中三维扩散型现象的控制体积有限元方法
IF 1.5
Computational Thermal Sciences Pub Date : 2013-01-01 DOI: 10.1615/COMPUTTHERMALSCIEN.2013006532
Simon Kattoura, Alexandre Lamoureux, B. R. Baliga
{"title":"A control-volume finite element method for the prediction of three-dimensional diffusion-type phenomena in anisotropic media","authors":"Simon Kattoura, Alexandre Lamoureux, B. R. Baliga","doi":"10.1615/COMPUTTHERMALSCIEN.2013006532","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2013006532","url":null,"abstract":"The formulation and testing of a control-volume finite element method (CVFEM) for the prediction of three-dimensional, linear and nonlinear, diffusion-type phenomena in anisotropic media in irregular calculation domains are presented and discussed in this paper. In this CVFEM, the calculation domain is discretized into four-node tetrahedral elements. Contiguous, non-overlapping, polyhedral control volumes are then associated with each node, and the governing differential equation is integrated over these control volumes. The dependent variable is interpolated linearly in each four-node tetrahedral element. Centroidal values of the diffusion coefficients are stored and assumed to prevail over the corresponding tetrahedral element. The source term is linearized, and nodal values of its coefficients are stored and assumed to prevail over the polyhedral sub-control volumes. Using these interpolation functions, the discretized equations, which are algebraic approximations to the integral conservation equations, are derived. The discretized equations, which in general, are nonlinear and coupled, are solved using an iterative procedure. The proposed CVFEM for the solution of anisotropic diffusion- type problems appears to be the first such method that is based on tetrahedral elements and vertex-centered polyhedral control volumes. These features make it particularly attractive for amalgamation with adaptive-grid schemes and applications to problems with complex irregular geometries, such those encountered in the general areas of drying, ground-water flows, conduction in composite materials, injection molding in heterogeneous porous media, and solidification. The proposed three-dimensional CVFEM and its computer implementation were tested using several steady conduction-type problems, for which analytical solutions were constructed using a special technique. In all cases, the agreement between the numerical and analytical solutions was excellent.","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
NUMERICAL STUDY OF RADIATION AND AIRPREHEATING EFFECT ON THE VELOCITY, TEMPERATURE, AND SPECIES DISTRIBUTION IN A CONFINED LAMINAR COFLOW DIFFUSION FLAME 辐射和空气预热对受限层流共流扩散火焰中速度、温度和物质分布影响的数值研究
IF 1.5
Computational Thermal Sciences Pub Date : 2013-01-01 DOI: 10.1615/COMPUTTHERMALSCIEN.2013006896
A. K. Chowdhuri, S. Chakrabarti, B. Mandal
{"title":"NUMERICAL STUDY OF RADIATION AND AIRPREHEATING EFFECT ON THE VELOCITY, TEMPERATURE, AND SPECIES DISTRIBUTION IN A CONFINED LAMINAR COFLOW DIFFUSION FLAME","authors":"A. K. Chowdhuri, S. Chakrabarti, B. Mandal","doi":"10.1615/COMPUTTHERMALSCIEN.2013006896","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2013006896","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
ANALYTICAL SOLUTION FOR NATURAL CONVECTION HEAT TRANSFER ABOUT A VERTICAL CONE IN POROUS MEDIA FILLED WITH A NON-NEWTONIAN Al2O3-WATER NANOFLUID 用非牛顿al2o3 -水纳米流体填充的多孔介质中垂直锥的自然对流换热的解析解
IF 1.5
Computational Thermal Sciences Pub Date : 2013-01-01 DOI: 10.1615/COMPUTTHERMALSCIEN.2013006127
A. Rasekh, D. Ganji, S. Tavakoli
{"title":"ANALYTICAL SOLUTION FOR NATURAL CONVECTION HEAT TRANSFER ABOUT A VERTICAL CONE IN POROUS MEDIA FILLED WITH A NON-NEWTONIAN Al2O3-WATER NANOFLUID","authors":"A. Rasekh, D. Ganji, S. Tavakoli","doi":"10.1615/COMPUTTHERMALSCIEN.2013006127","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2013006127","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
TWO-EQUATION TURBULENCE MODEL FOR SUPERSONIC FLOWS BASED ON MODELING OF PRESSURE–STRAIN CORRELATION 基于压力-应变相关建模的超声速流动双方程湍流模型
IF 1.5
Computational Thermal Sciences Pub Date : 2013-01-01 DOI: 10.1615/COMPUTTHERMALSCIEN.2013006435
Alexander M. Molchanov
{"title":"TWO-EQUATION TURBULENCE MODEL FOR SUPERSONIC FLOWS BASED ON MODELING OF PRESSURE–STRAIN CORRELATION","authors":"Alexander M. Molchanov","doi":"10.1615/COMPUTTHERMALSCIEN.2013006435","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2013006435","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PREFACE: INTERNATIONAL CONFERENCE ON HEAT TRANSFER, FLUID MECHANICS AND THERMODYNAMICS 2012 2012国际传热、流体力学与热力学学术会议
IF 1.5
Computational Thermal Sciences Pub Date : 2013-01-01 DOI: 10.1615/COMPUTTHERMALSCIEN.2013007372
J. Meyer
{"title":"PREFACE: INTERNATIONAL CONFERENCE ON HEAT TRANSFER, FLUID MECHANICS AND THERMODYNAMICS 2012","authors":"J. Meyer","doi":"10.1615/COMPUTTHERMALSCIEN.2013007372","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2013007372","url":null,"abstract":"This issue ofComputational Thermal Sciences contains some of the papers which were presented at HEFAT2012: The International Conference on Heat Transfer, Fluid Mechanics, and Thermodynamics, held on 16–18 July 2012 on Malta. At the conference, a total of 270 papers were read, including six keynote papers. From these papers, approximately 20 authors were invited to submit papers (most of the papers were amended since presentation) for consideration to be published in this journal. After being peer-reviewed, 14 papers were accepted for publication as two issues of this journal. Previous conferences in this series took place in the Kruger National Park, South Africa (2002), Victoria Falls, Zambia (2003), Cape Town (2004), Cairo (2005), Sun City (2006), Pretoria (2008), Antalya (2010), and Mauritius (2011). The goal of the HEFAT conferences is to provide a forum at which specialists in heat transfer, fluid mechanics, and thermodynamics from all corners of the globe can present the latest progress and developments in the field. The conferences have also served as a catalyst for discus-","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1615/COMPUTTHERMALSCIEN.2013007372","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of a concentric heat exchanger using computational fluid dynamics as design tool 以计算流体力学为设计工具的同心换热器设计
IF 1.5
Computational Thermal Sciences Pub Date : 2013-01-01 DOI: 10.1615/COMPUTTHERMALSCIEN.2013006317
J. Oosterhuis, S. Bühler, D. Wilcox, T. V. D. Meer
{"title":"Design of a concentric heat exchanger using computational fluid dynamics as design tool","authors":"J. Oosterhuis, S. Bühler, D. Wilcox, T. V. D. Meer","doi":"10.1615/COMPUTTHERMALSCIEN.2013006317","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2013006317","url":null,"abstract":"A concentric gas-to-gas heat exchanger is designed for application as a recuperator in the domestic boiler industry. The recuperator recovers heat from the exhaust gases of a combustion process to preheat the ingoing gaseous fuel mixture resulting in increased fuel efficiency. This applied study shows the use of computational fluid dynamics simulations as an efficient design tool for heat exchanger design. An experimental setup is developed and the simulation results are validated","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ON THE STEADY AND UNSTEADY ASPECTS OF COMBINED SORET EFFECT AND DOUBLE-DIFFUSIVE CONVECTION IN A BENARD SQUARE CAVITY SUBMITTED TO A HORIZONTAL GRADIENT OF CONCENTRATION 水平浓度梯度作用下双扩散对流和索雷效应的定常和非定常研究
IF 1.5
Computational Thermal Sciences Pub Date : 2013-01-01 DOI: 10.1615/COMPUTTHERMALSCIEN.2012004125
M. Lamsaadi, M. Naïmi, H. E. Harfi, A. Raji, M. Hasnaoui
{"title":"ON THE STEADY AND UNSTEADY ASPECTS OF COMBINED SORET EFFECT AND DOUBLE-DIFFUSIVE CONVECTION IN A BENARD SQUARE CAVITY SUBMITTED TO A HORIZONTAL GRADIENT OF CONCENTRATION","authors":"M. Lamsaadi, M. Naïmi, H. E. Harfi, A. Raji, M. Hasnaoui","doi":"10.1615/COMPUTTHERMALSCIEN.2012004125","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2012004125","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67418528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
DYNAMIC THERMOELASTICITY FOR TWO-DIMENSIONAL ANISOTROPIC MEDIA WITH A HOLE 含孔二维各向异性介质的动态热弹性
IF 1.5
Computational Thermal Sciences Pub Date : 2013-01-01 DOI: 10.1615/COMPUTTHERMALSCIEN.2013007411
L. A. Fil'shtinskii, T. Kirichok
{"title":"DYNAMIC THERMOELASTICITY FOR TWO-DIMENSIONAL ANISOTROPIC MEDIA WITH A HOLE","authors":"L. A. Fil'shtinskii, T. Kirichok","doi":"10.1615/COMPUTTHERMALSCIEN.2013007411","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2013007411","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THERMO-ELECTRICAL CO-DESIGN OF THREE-DIMENSIONAL INTEGRATED CIRCUITS: CHALLENGES AND OPPORTUNITIES 三维集成电路的热电协同设计:挑战与机遇
IF 1.5
Computational Thermal Sciences Pub Date : 2013-01-01 DOI: 10.1615/COMPUTTHERMALSCIEN.2013007643
A. Bar-Cohen, A. Srivastava, Bing Shi
{"title":"THERMO-ELECTRICAL CO-DESIGN OF THREE-DIMENSIONAL INTEGRATED CIRCUITS: CHALLENGES AND OPPORTUNITIES","authors":"A. Bar-Cohen, A. Srivastava, Bing Shi","doi":"10.1615/COMPUTTHERMALSCIEN.2013007643","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2013007643","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
FALSE DIFFUSION PRODUCED BY FLUX LIMITERS 由通量限制器产生的虚假扩散
IF 1.5
Computational Thermal Sciences Pub Date : 2013-01-01 DOI: 10.1615/COMPUTTHERMALSCIEN.2013006746
V. Chu, Congwei Gao
{"title":"FALSE DIFFUSION PRODUCED BY FLUX LIMITERS","authors":"V. Chu, Congwei Gao","doi":"10.1615/COMPUTTHERMALSCIEN.2013006746","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2013006746","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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