COMPUTATION　OF　TURBULENT　FLOW　AND　HEAT　TRANSFER　IN　LARGE　RADIUS　90－DEGREE　CIRCULAR　BENDS

作     者：M. J. Wang(Technische Universitat Munchen, BRD)Su Ming-de(Tsinghua University, Beijing, 100084, P. R. China) 

作者机构：Technische Univ Munchen Germany 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：1994年第6卷第1期

页      面：91-102页

核心收录：

学科分类：080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

主　　题：turbulent now heat transfer circular bends numerical study 

摘      要：A numerical study of fluid flow and heat transfer of turbulent developing flow in 90°circular bends is presented using a finite-difference method bond CFD code. Results show an appreciable fluid redistribution process in large radius bend that brings about an overall heat transfer augmentation, especially at the outer side of the bend, and the significant deterioration at the inner side. The influence of two major parameters, namely, the bend-to-tube radius ratio and the bulk Reynolds number on the flow structure as well as on the local heat transfer is investigated.