原子能科学技术Issue(9)：1565-1570,6.DOI:10.7538/yzk.2014.48.09.1565
高温气冷堆中间换热器层流边界层的传热特性分析
Heat Transfer Characteristic Analysis of Laminar Boundary Layer for Intermediate Heat Exchanger of HTR
摘要
Abstract
To improve the heat efficiency of the high-temperature gas-cooled reactor intermediate heat exchanger , the theoretical calculation and simulation analysis of laminar flow and thermal boundary layers for the IHX were carried out .Through the way of polynomial velocity distribution ,it is found that a third order polynomial velocity distribution is close to the Blasius exact solution and the results of the numerical simulation .At the same time ,combined with the temperature distribution in different locations ,it is found that upper and lower boundary layers will meet .And then ,the flow changes to the Poiseuille flow and the boundary layer theory no longer applies .At last ,the effects of He inlet temperature and outlet pressure were analyzed ,which makes no difference .Under constant heat flux ,the changes of wall temperature can be divided into obvious boundary layer zone and Poiseuille flow zone and in both areas are linear .关键词
层流/边界层/传热特性/中间换热器Key words
laminar flow/boundary layer/heat transfer characteristic/intermediate heat exchanger分类
能源科技引用本文复制引用
吴彦楠,董玉杰,原鲲..高温气冷堆中间换热器层流边界层的传热特性分析[J].原子能科学技术,2014,(9):1565-1570,6.基金项目
国家科技重大专项资助项目 （）
