[1]张敏,黄庆宏.非结构网格中导热和辐射复合传热的数值计算[J].南京师范大学学报(工程技术版),2005,05(03):005-7.
　ZHANG Min,HUANG Qinghong.Combined Radiation and Conduction Heat Transfer Calculations Using Unstructured Grid[J].Journal of Nanjing Normal University(Engineering and Technology),2005,05(03):005-7.
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非结构网格中导热和辐射复合传热的数值计算
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
05卷
期数:
2005年03期
页码:
005-7
栏目:
出版日期:
2005-09-30

文章信息/Info

Title:
Combined Radiation and Conduction Heat Transfer Calculations Using Unstructured Grid
作者:
张敏1; 黄庆宏2
1. 南京理工大学动力工程学院, 江苏南京210094;
2. 南京师范大学动力工程学院, 江苏南京210042
Author(s):
ZHANG Min1;  HUANG Qinghong2
1. School of Power Engineering, Nanjing University of Science and Technology, Jiangsu Nanjing 210094, China; 2. School of Power Engineering, Nanjing Normal University, Jiangsu Nanjing 210042, China
关键词:
非结构化网格;  热传导;  辐射传热
Keywords:
unstruc tured g rid /m esh;  conduction heat transfe r;  rad iative hea t transfe r
分类号:
TK124;
摘要:
用基元(based-cell)-有限容积法FVM(FiniteVolumeMethod)求解介质空间导热和辐射复合传热问题.在非结构化网格中离散复合换热方程,并编写计算程序.对复合换热方程中的辐射源项进行特殊处理,同时,结合复合换热方程和介质特性,找出无量纲参数光学厚度τ、导热辐射系数N和散射系数ω.并在非结构化四边形网格中,对这些参数的变化进行数值计算,从中得出这两种传热模型藕合的基本规律.当N=0.1和ω=0.1时,光学厚度τ在低温区,敏感性不断加大,并随着散射系数ω的增大而减小;当N=0.1和τ=0.5时,散射系数ω在低温区,在小于1的数量级时,比较敏感;当ω=0.5和τ=0.5时,导热辐射系数N的影响十分有限.
Abstract:
Coup led conduction and rad iation heat transfer prob lem s are solved by using the based-ce ll and the fin ite vo lum em ethod ( FVM ) in the reg ions w ith the m ed ium s. The com bined heat transfe r equations are discretized in the unstructu red m eshes and the calcu lating program s are w r itten. The radiative heat source o f the com bined equation is treated spec ially. M eanwh ile, in comb inatory w ith the govern ing equa tions and the severa l o fm ed ium cha racte rs, the d im ension less numbers are obta ined and com puted by us ing unstruc tured quad g rids in various param eters, such as, optical th ickness S, conduction rad ia tion pa ram e terN, and sca tter ing a lbedo X. From the resu lts, the basic trends can be obta ined o f how the both m odes of hea t transfer interactw ith each othe r. W h ileN = 0.1 and ω= 0.1, the sensitiv ity of optical th ickness S increases in the low temperature zone, and it decreases w hen X increases. W hileN = 0. 1 and r= 0.5, the sensitiv ity o f sca tter ing albedoX is stronger in the low tem pera ture zone. Wh ile X= 0. 5 and S = 0. 5, the e ffect o f conduction-rad ia tion param eterN is lim ited.

参考文献/References:

[ 1] M odestM F. Rad iative H eat Transfer[M ]. New York: M cG raw H ill Inc, 1993. 713- 715.
[ 2] ZhangM. Mode ling of RadiativeH ea t Transfer and D iffusion Processes U sing Unstructured Gr id[ D]. USA: Tennessee Techno log icalUn iv ers ity, 2000: 65- 88.
[ 3] 斯帕罗EM, 塞斯RD. 辐射传热[M ]. 顾传保, 张学学译. 北京: 高等教育出版社, 1982. 270 -283.
[ 4] Chai JC, Pa tankar SV. Fin ite-Vo lum eM ethod for Radiation H eat Transfer[M ]. New Yo rk: Tay lo r and Franc is Pub lishe r, 2000. 102- 121.

相似文献/References:

[1]黄庆宏,王柯,张敏.热传导方程伽略金近似解与数值解的比较分析[J].南京师范大学学报(工程技术版),2012,12(01):025.
　Huang Qinhong,Wang Ke,Zhang Min.Analysis and Comparison of Galerkin Approximating Method and Numerical Computation[J].Journal of Nanjing Normal University(Engineering and Technology),2012,12(03):025.
[2]黄庆宏,张 敏,刘 晶.非结构网格特定条件下热传导的数值计算[J].南京师范大学学报(工程技术版),2006,06(03):026.
　HUANG Qinghong~,ZHANG Min~,LIU Jing~.Conduction Heat Transfer Calculations under Special Conditions with Unstructured Grids[J].Journal of Nanjing Normal University(Engineering and Technology),2006,06(03):026.

备注/Memo

备注/Memo:
作者简介: 张敏( 1957-) , 博士, 副教授, 主要从事流体力学、传热学、工程热力学、空气动力学、核工程学等方面的教学与研究.E-m ail:m z2455@ yahoo. com
更新日期/Last Update: 2013-04-29