期刊
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
卷 32, 期 6, 页码 2198-2220出版社
EMERALD GROUP PUBLISHING LTD
DOI: 10.1108/HFF-05-2021-0362
关键词
Entropy generation; Maxwell nanofluid; Unsteady flow; Wedge; Porous medium; Cattaneo-Christov double diffusion
资金
- Fundamental Research Funds for Beijing University of Civil Engineering and Architecture [X20142]
- Beijing Municipal Natural Science Foundation [KZ201810016018]
- Beijing Municipal Education Commission [KZ201810016018]
- Basic Scientific Research Projects of Municipal Universities-QN Youth Research and Innovation Project [X21027, X21030, X21031]
This paper investigates the effect of entropy generation on the unsteady flow of upper-convected Maxwell nanofluid past a wedge embedded in a porous medium considering buoyancy force. The processes of energy phenomenon and mass transfer are simulated using Cattaneo-Christov double diffusion theory. Various factors such as Brownian motion, thermophoresis, and convective boundary conditions are discussed to visualize heat and mass transfer properties.
Purpose This paper aims to present the effect of entropy generation on the unsteady flow of upper-convected Maxwell nanofluid past a wedge embedded in a porous medium in view of buoyancy force. Cattaneo-Christov double diffusion theory simulates the processes of energy phenomenon and mass transfer. Meanwhile, Brownian motion, thermophoresis and convective boundary conditions are discussed to further visualize the heat and mass transfer properties. Design/methodology/approach Coupled ordinary differential equations are gained by appropriate similar transformations and these equations are manipulated by the Homotopy analysis method. Findings The result is viewed that velocity distribution is a diminishing function with boosting the value of unsteadiness parameter. Moreover, fluid friction irreversibility is dominant as the enlargement in Brinkman number. Then controlling the temperature and concentration difference parameters can effectively regulate entropy generation. Originality/value This paper aims to address the effect of entropy generation on unsteady flow, heat and mass transfer of upper-convected Maxwell nanofluid over a stretched wedge with Cattaneo-Christov double diffusion, which provides a theoretical basis for manufacturing production.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据