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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.16 [2009] >
IJEMS Vol.16(5) [October 2009] >
| Title: | Fundamental studies on buoyancy-aided conjugate mixed convection with surface radiation from a discretely heated vertical electronic board |
| Authors: | Sawant, S M
Rao, C Gururaja |
| Keywords: | Buoyancy-aided conjugate mixed convection
Surface radiation
Electronic board
Discrete heat sources
Maximum board temperature
Mean friction coefficient |
| Issue Date: | Oct-2009 |
| Publisher: | CSIR |
| Abstract: | The present paper reports
numerical results related to the problem of buoyancy-aided conjugate mixed
convection with surface radiation from a discretely heated vertical electronic
board. The board is equipped with three flush-mounted discrete heat sources of
identical dimensions and volumetric heat generation, while air is used as the
cooling medium. The governing continuity, Navier-Stokes and energy equations
are taken without boundary layer approximations and are solved using finite
volume method with the help of stream function–vorticity formulation. An
extended computational domain is considered and is discretised with 151 grids
along and 111 grids across the board. The nature of variation of local board
temperature distribution, peak board temperature, local drag coefficient, mean
friction coefficient and relative contributions of mixed convection and
radiation to board heat dissipation with reference to some of the pertinent
independent parameters has been looked into. Also, some of the contour plots
related to isotherm distribution in the computational domain for typical sets
of working conditions have been provided. |
| Page(s): | 301-309 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.16(5) [October 2009]
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