Analysis of heat transfer performance for turbulent viscoelastic fluid-based nanofluid using field synergy principle

作     者：YANG JuanCheng LI FengChen NI MingJiu YU Bo 

作者机构：School of Physical Sciences University of Chinese Academy of Sciences School of Energy Science and EngineeringHarbin Institute of Technology Beijing Key Laboratory of Urban Oil and Gas Distribution Technology China University of Petroleum 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2015年第58卷第7期

页      面：1137-1145页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by China Postdoctoral Science Foundation(Grant No.2014M561037) President Fund of University of Chinese Academy of Sciences(Grant No.Y3510213N00) National Natural Science Foundation of China(Grant No.51276046) Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20112302110020) National Natural Science Foundation of China(Grant No.51325603) 

主　　题：viscoelastic fluid-based nanofluid filed synergy principle intersection angle turbulent drag reduction heat transferenhancement 

摘      要：In this paper,the field synergy principle is firstly performed on the viscoelastic fluid-based nanofluid and other relevant fluid in channel at turbulent flow state to scrutinize their heat transfer performance based on our direct numerical simulation *** cosine values of intersection angle between velocity vector and temperature gradient vector are calculated for different simulated cases with varying nanoparticle volume fraction,nanoparticle diameter,Reynolds number and Weissenberg *** is found that the filed synergy effect is enhanced when the nanoparticle volume fraction is increased,nanoparticle diameter is decreased and Weissenberg number is decreased,*** heat transfer is also ***,the filed synergy effect is weakened with the increase of Reynolds number which may be the possible reason for the power function relationship in empirical correlation of heat transfer between heat transfer performance and Reynolds number with the constant power exponent lower than ***,it is also observed that the field synergy principle can be used to analyze the heat transfer process of viscoelastic fluid-based nanofluid at the turbulent flow state even if some negative cosine values of intersection angle exist in the flow field.