Numerical and experimental analysis of natural convection in a cavity with flush mounted heat sources on a side wall

Author

Ramos, Ruicardo Alan VerdÙ ; Dias, Tito, Jr. ; Milanez, Luiz Fernando

Author_Institution

DEM-FEIS-UNESP, Ilha Solteira, SP, Brazil

fYear

1998

fDate

27-30 May 1998

Firstpage

130

Lastpage

134

Abstract

This work considers a problem of interest in several technological applications, such as the thermal control of electronic equipment. It is also important to study the heat transfer performance of these components under off-normal conditions, such as during cooling fan failure. The effect of natural convection on the flow and heat transfer in a cavity with two flush mounted heat sources on the left vertical wall, simulating electronic components, is studied numerically and experimentally. The influence of the power distribution, spacing between the heat sources and cavity aspect ratio have been investigated. An analysis of the average Nusselt number of the two heat sources was performed to investigate the behaviour of the heat transfer coefficients. The results obtained numerically and experimentally, after an error analysis, showed good agreement

Keywords

cooling; error analysis; failure analysis; flow simulation; heating; natural convection; numerical analysis; thermal analysis; thermal management (packaging); average Nusselt number; cavity air flow; cavity aspect ratio; cavity heat transfer; cavity side wall; component heat transfer performance; cooling fan failure; electronic components; electronic equipment thermal control; error analysis; experimental analysis; flush mounted heat sources; heat source spacing; heat transfer coefficients; natural convection; numerical analysis; off-normal conditions; power distribution; Boundary conditions; Electronic components; Electronic equipment; Electronics cooling; Equations; Fans; Finite volume methods; Heat transfer; Temperature measurement; Thermal conductivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermal and Thermomechanical Phenomena in Electronic Systems, 1998. ITHERM '98. The Sixth Intersociety Conference on

Conference_Location

Seattle, WA

ISSN

1089-9870

Print_ISBN

0-7803-4475-8

Type

conf

DOI

10.1109/ITHERM.1998.689530

Filename

689530