|Table of Contents|

Combined Radiation and Conduction Heat Transfer Calculations Using Unstructured Grid(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2005年03期
Page:
5-7
Research Field:
Publishing date:

Info

Title:
Combined Radiation and Conduction Heat Transfer Calculations Using Unstructured Grid
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
Keywords:
unstruc tured g rid /m esh;  conduction heat transfe r;  rad iative hea t transfe r
PACS:
TK124;
DOI:
-
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.

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.

Memo

Memo:
-
Last Update: 2013-04-29