Pub Date : 2012-01-01DOI: 10.1615/COMPUTTHERMALSCIEN.2012005166
V. Chu, W. Altai
{"title":"ADVECTION AND DIFFUSION SIMULATIONS USING LAGRANGIAN BLOCKS","authors":"V. Chu, W. Altai","doi":"10.1615/COMPUTTHERMALSCIEN.2012005166","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2012005166","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":"4 1","pages":"351-363"},"PeriodicalIF":1.5,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419229","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}
Pub Date : 2012-01-01DOI: 10.1615/COMPUTTHERMALSCIEN.2012006413
Simin Huang, Li-Zhi Zhang
{"title":"ADVANCED INDOOR HUMIDITY CONTROL: NEW IMPACTS ON CONJUGATED HEAT AND MASS TRANSFER","authors":"Simin Huang, Li-Zhi Zhang","doi":"10.1615/COMPUTTHERMALSCIEN.2012006413","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2012006413","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":"4 1","pages":"539-547"},"PeriodicalIF":1.5,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419245","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}
Pub Date : 2012-01-01DOI: 10.1615/COMPUTTHERMALSCIEN.2012005475
M. Abdou, Ali J. Chamkha
The effect of double diffusion on mixed convection of a viscous incompressible in an axisymmetric stagnation flow of nanofluid past a vertical cylinder with constant or variable thermal wall condition is analyzed. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis. The governing equations are transformed into dimensionless form using the stream function and suitable variables. The transformed equations are then solved numerically using the Runge-Kutta numerical integration procedure in conjunction with the shooting technique. A parametric study of the physical parameters is conducted, and a representative set of numerical results for the velocity, temperature, and nanoparticles volume fraction profiles as well as the local friction factor, and the local Nusselt and Sherwood numbers, are illustrated graphically to show interesting features of the solutions.
{"title":"DOUBLE DIFFUSION MIXED CONVECTION IN AN AXISYMMETRIC STAGNATION FLOW OF A NANOFLUID OVER A VERTICAL CYLINDER","authors":"M. Abdou, Ali J. Chamkha","doi":"10.1615/COMPUTTHERMALSCIEN.2012005475","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2012005475","url":null,"abstract":"The effect of double diffusion on mixed convection of a viscous incompressible in an axisymmetric stagnation flow of nanofluid past a vertical cylinder with constant or variable thermal wall condition is analyzed. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis. The governing equations are transformed into dimensionless form using the stream function and suitable variables. The transformed equations are then solved numerically using the Runge-Kutta numerical integration procedure in conjunction with the shooting technique. A parametric study of the physical parameters is conducted, and a representative set of numerical results for the velocity, temperature, and nanoparticles volume fraction profiles as well as the local friction factor, and the local Nusselt and Sherwood numbers, are illustrated graphically to show interesting features of the solutions.","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":"4 1","pages":"201-211"},"PeriodicalIF":1.5,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419356","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}
Pub Date : 2012-01-01DOI: 10.1615/COMPUTTHERMALSCIEN.2012005217
G. E. Lau, V. Timchenko, C. Ménézo, S. Giroux-Julien, M. Fossa, Estibaliz Sanvicente, J. Reizes, G. Yeoh
{"title":"Numerical and experimental investigation of unsteady natural convection in a vertical open-ended channel.","authors":"G. E. Lau, V. Timchenko, C. Ménézo, S. Giroux-Julien, M. Fossa, Estibaliz Sanvicente, J. Reizes, G. Yeoh","doi":"10.1615/COMPUTTHERMALSCIEN.2012005217","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2012005217","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":"4 1","pages":"443-456"},"PeriodicalIF":1.5,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419336","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}
Pub Date : 2012-01-01DOI: 10.1615/COMPUTTHERMALSCIEN.2012004766
Y. Oda, K. Takeishi, Y. Miyake
{"title":"NUMERICAL STUDY OF CONJUGATE HEAT TRANSFER IN PIN-FIN CHANNELS BASED ON LARGE-EDDY SIMULATION DATA","authors":"Y. Oda, K. Takeishi, Y. Miyake","doi":"10.1615/COMPUTTHERMALSCIEN.2012004766","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2012004766","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":"4 1","pages":"271-282"},"PeriodicalIF":1.5,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67418830","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}
Pub Date : 2012-01-01DOI: 10.1615/COMPUTTHERMALSCIEN.2012006451
R. Bennacer, O. Rahli, H. Hammed
{"title":"UNSTABLE ANISOTHERMAL MULTICOMPONENT CONVECTIVE FLOW: FROM SMALL TO LARGE SCALES","authors":"R. Bennacer, O. Rahli, H. Hammed","doi":"10.1615/COMPUTTHERMALSCIEN.2012006451","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2012006451","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":"4 1","pages":"549-566"},"PeriodicalIF":1.5,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1615/COMPUTTHERMALSCIEN.2012006451","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419072","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}
Pub Date : 2012-01-01DOI: 10.1615/COMPUTTHERMALSCIEN.2012006531
V. Timchenko, L. Dombrovsky
{"title":"LASER INDUCED HYPERTHERMIA OF SUPERFICIAL TUMORS: A TRANSIENT THERMAL MODEL FOR INDIRECT HEATING STRATEGY","authors":"V. Timchenko, L. Dombrovsky","doi":"10.1615/COMPUTTHERMALSCIEN.2012006531","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2012006531","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":"4 1","pages":"457-475"},"PeriodicalIF":1.5,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67419142","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}
Pub Date : 2012-01-01DOI: 10.1615/COMPUTTHERMALSCIEN.2012004160
K. Dinesh, M. Kirkpatrick, A. Odedra
A turbulent hydrogen-air nonpremixed jet flame is studied using three-dimensional large eddy simulation (LES) and laminar flamelet model based on detailed chemical kinetics. The LES solves the governing equations on a structured Cartesian grid using a finite volume method, with turbulence and combustion modelling based on the localised dynamic Smagorinsky model and the steady laminar flamelet model respectively. The LES results are validated against experimental measurements and overall the LES yields good qualitative and quantitative agreement with the experimental observations. Analysis showed that the LES gives good prediction of the flow field, flame temperature and major species. The three-dimensional transient LES demonstrates the variation of low and high temperature structures and both transient and mean predictions show that the high temperature regions and combustion product appear close to the jet centreline. The present findings provide useful details on fundamental issues of turbulence-chemistry interactions of hydrogen combustion and help to identify potential pathways for combustion modelling towards clean combustion.
{"title":"COMPUTATIONAL FLUID DYNAMICS MODELING TOWARD CLEAN COMBUSTION","authors":"K. Dinesh, M. Kirkpatrick, A. Odedra","doi":"10.1615/COMPUTTHERMALSCIEN.2012004160","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2012004160","url":null,"abstract":"A turbulent hydrogen-air nonpremixed jet flame is studied using three-dimensional large eddy simulation (LES) and laminar flamelet model based on detailed chemical kinetics. The LES solves the governing equations on a structured Cartesian grid using a finite volume method, with turbulence and combustion modelling based on the localised dynamic Smagorinsky model and the steady laminar flamelet model respectively. The LES results are validated against experimental measurements and overall the LES yields good qualitative and quantitative agreement with the experimental observations. Analysis showed that the LES gives good prediction of the flow field, flame temperature and major species. The three-dimensional transient LES demonstrates the variation of low and high temperature structures and both transient and mean predictions show that the high temperature regions and combustion product appear close to the jet centreline. The present findings provide useful details on fundamental issues of turbulence-chemistry interactions of hydrogen combustion and help to identify potential pathways for combustion modelling towards clean combustion.","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":"4 1","pages":"49-65"},"PeriodicalIF":1.5,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67418539","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}
Pub Date : 2012-01-01DOI: 10.1615/COMPUTTHERMALSCIEN.2012004055
A. A. Arani, E. Roohi
{"title":"NATURAL CONVECTION IN A NANOFLUID-FILLED SQUARE CAVITY WITH AN ARC-SHAPED HEATED BAFFLE","authors":"A. A. Arani, E. Roohi","doi":"10.1615/COMPUTTHERMALSCIEN.2012004055","DOIUrl":"https://doi.org/10.1615/COMPUTTHERMALSCIEN.2012004055","url":null,"abstract":"","PeriodicalId":45052,"journal":{"name":"Computational Thermal Sciences","volume":"4 1","pages":"159-168"},"PeriodicalIF":1.5,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67418798","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}