Heat Transfer-Asian Research最新文献

Flow and Heat Transfer of Maxwell Fluid Over an Exponentially Stretching Sheet: A Non‐similar Solution 麦克斯韦流体在指数拉伸薄片上的流动和传热:一个非相似的解决方案

IF 4.9

Heat Transfer-Asian Research Pub Date : 2014-05-01 DOI: 10.1002/htj.21074

Z. Abbas, T. Javed, N. Ali, M. Sajid

引用次数: 14

The Interfacial Layer and the Thermal Conductivity of Nanofluid 纳米流体的界面层与导热性

IF 4.9

Heat Transfer-Asian Research Pub Date : 2014-05-01 DOI: 10.1002/htj.21084

R. Pasrija, S. Srivastava

引用次数: 12

MHD Flow and Heat Transfer of a Dusty Fluid Over a Stretching Hollow Cylinder with a Convective Boundary Condition 含尘流体在具有对流边界条件的拉伸空心圆筒上的MHD流动和换热

IF 4.9

Heat Transfer-Asian Research Pub Date : 2014-05-01 DOI: 10.1002/htj.21073

A. Rasekh, D. Ganji, S. Tavakoli, H. Ehsani, S. Naeejee

{"title":"MHD Flow and Heat Transfer of a Dusty Fluid Over a Stretching Hollow Cylinder with a Convective Boundary Condition","authors":"A. Rasekh, D. Ganji, S. Tavakoli, H. Ehsani, S. Naeejee","doi":"10.1002/htj.21073","DOIUrl":"https://doi.org/10.1002/htj.21073","url":null,"abstract":"In this study, we deal with the problem of a steady two‐dimensional magnetohydrodynamic (MHD) flow of a dusty fluid over a stretching hollow cylinder. Unlike the commonly employed thermal conditions of constant temperature or constant heat flux, the present study uses a convective heating boundary condition. The multi‐step differential transform method (multi‐step DTM), one of the most effective methods, is employed to find an approximate solution of the system of highly nonlinear differential equations governing the problem. Comparisons are made between the results of the proposed method and the numerical method in solving this problem and excellent agreement has been observed. The influence of important parameters on the flow field and heat transfer characteristics are presented and discussed in detail. The results show that both the thermal boundary layer thickness and the heat transfer rate at the wall increases with increasing Biot number Bi, while it has no effect on the skin friction coefficient. © 2013 Wiley Periodicals, Inc. Heat Trans Asian Res, 43(3): 221–232, 2014; Published online 30 August 2013 in Wiley Online Library (wileyonlinelibrary.com/journal/htj). DOI 10.1002/htj.21073","PeriodicalId":47448,"journal":{"name":"Heat Transfer-Asian Research","volume":"7 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87494847","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: 9

Unsteady Mixed Convection Flow of a Rotating Second‐Grade Fluid on a Rotating Cone 二级流体在旋转锥上的非定常混合对流流动

IF 4.9

Heat Transfer-Asian Research Pub Date : 2014-05-01 DOI: 10.1002/htj.21072

S Nadeem, S. Saleem

引用次数: 6

Solution of nonlinear boundary layer equation for flat plate via optimal homotopy asymptotic method 平板非线性边界层方程的最优同伦渐近解

IF 4.9

Heat Transfer-Asian Research Pub Date : 2014-05-01 DOI: 10.1002/htj.21070

F. Mabood, W. Khan, A. I. Ismail

引用次数: 8

Modeling of a Solar Water Collector with Water‐Based Nanofluid Using Nanoparticles 基于纳米粒子的水基纳米流体太阳能集水器的建模

IF 4.9

Heat Transfer-Asian Research Pub Date : 2014-05-01 DOI: 10.1002/htj.21080

R. Nasrin, M. A. Alim

{"title":"Modeling of a Solar Water Collector with Water‐Based Nanofluid Using Nanoparticles","authors":"R. Nasrin, M. A. Alim","doi":"10.1002/htj.21080","DOIUrl":"https://doi.org/10.1002/htj.21080","url":null,"abstract":"The pressure‐velocity form of the Navier–Stokes equations, energy equation, and concentration equation are used to represent the mass, momentum, energy, and concentration conservations of the nanofluid medium in the solar collector. The governing equations and corresponding boundary conditions are converted to dimensionless form and solved numerically by the finite element method. The physical domain is discretized by triangular mesh elements with six nodes. The working fluid is water‐based nanofluid with two nanoparticles, namely, silver (Ag) and copper oxide (CuO). The study includes computations for different values of buoyancy ratio (Nr) and Schmidt number (Sc). Flow, heat, and mass transfer characteristics are presented in the forms of streamlines, isotherms, and iso‐concentrations. In addition, results for the average radiative, convective heat and mass transfer, mean temperature and concentration of nanofluid, mid‐height horizontal‐vertical velocities, and subdomain average velocity field are offered and discussed for the above‐mentioned parametric conditions. Results show that the effects of Nr and Sc on the convective‐radiative heat and mass transfer phenomenon inside the collector are significant for all values of Nr and Sc studied. Comparison and validation with the standard experimental/numerical data is given in brief. The variation of the obtained result is presented as 34% with the result of experimental data. © 2013 Wiley Periodicals, Inc. Heat Trans Asian Res, 43(3): 270–287, 2014; Published online 30 September 2013 in Wiley Online Library (wileyonlinelibrary.com/journal/htj). DOI 10.1002/htj.21080","PeriodicalId":47448,"journal":{"name":"Heat Transfer-Asian Research","volume":"27 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80365485","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: 10

Modeling and CFD Simulation of a Mixed‐Convection Flow of Regular Fluids and Nanofluids in Vertical Porous and Regular Channels 垂直多孔和规则通道中规则流体和纳米流体混合对流流动的建模和CFD模拟

IF 4.9

Heat Transfer-Asian Research Pub Date : 2014-05-01 DOI: 10.1002/htj.21079

A. Hashemi, A. Dehkordi

{"title":"Modeling and CFD Simulation of a Mixed‐Convection Flow of Regular Fluids and Nanofluids in Vertical Porous and Regular Channels","authors":"A. Hashemi, A. Dehkordi","doi":"10.1002/htj.21079","DOIUrl":"https://doi.org/10.1002/htj.21079","url":null,"abstract":"In this article, the problem of combined forced and free convection in vertical porous and regular channels for both regular fluids and nanofluids has been solved using the CFD technique in the entrance regions of momentum and heat transfer taking into account the influences of viscous heating and inertial force. In this regard, various types of viscous dissipation models reported in the literature such as the Darcy model, the power of the drag force model, and the clear fluid‐compatible model were applied. In the case of nanofluid flow, both the Brownian and thermophoresis molecular transfer mechanisms were considered. The dimensionless distributions of velocity, temperature, and the volume fraction of nanoparticles were determined in terms of corresponding dimensionless numbers such as the Grashof, Reynolds, Forchheimer, Brinkman, and Darcy numbers. The predicted results were validated using fully‐developed distributions of velocity and temperature. In addition, the influences of the Grashof number value on the temperature and velocity distributions in the entrance and fully‐developed regions were examined carefully. In addition, temperature and velocity distributions of nanofluids and regular fluids in porous and regular channels were compared. © 2013 Wiley Periodicals, Inc. Heat Trans Asian Res, 43(3): 243–269, 2014; Published online 30 September 2013 in Wiley Online Library (wileyonlinelibrary.com/journal/htj). DOI 10.1002/htj.21079","PeriodicalId":47448,"journal":{"name":"Heat Transfer-Asian Research","volume":"30 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84646800","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