摘要
用数值计算法对平行平板通道内二维凸出块热源的强迫对流换热进行了研究。分析了通道中的流场和温度场变化,详细计算了热源各个表面的换热以及热源高度变化的影响,整理出各个表面平均换热以及整个热源总的平均换热关系式。雷诺数变化范围:100≤Re≤1500,热源相对高度变化:1/8≤h/H≤1/2。热源块总的平均换热关系式: Nu_m=1.0377Re^(0.37)·(h/H)^(-0.17)
A two dimensional numerical analysis has been presented to determin the forced convection on wall-protruded heat block in parallel flat plates. The distributions of velocity and temperature in channel are analyzed, and the heat transfer on each surface and the effect of height of heat block are calculated in detail for range of Reynolds numbers 100≤Re≤1500. The relative heights (height of block by height of channel)of h/H are 1/8,1/2 and 1 respectively. The overall heat transfor of block has been correlated by an equation of the form: Num= 1. 03777Re0.37 ·(h/ Ⅱ)-0.17.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
1991年第4期34-39,共6页
Journal of Chongqing University
关键词
热源
强迫对流
换热
通道流
forced convection
numerical analysis
channel
local heat source
