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ISSN Online: 2377-424X

ISBN Print: 0-89116-130-9

International Heat Transfer Conference 6
August, 7-11, 1978, Toronto, Canada

SOME NEW TECHNIQUES IN THE SOLUTION OP HEAT-EXCHANGE PROBLEMS POR COMPLEX DOMAINS

Get access (open in a dialog) DOI: 10.1615/IHTC6.2950
pages 215-219

Resumo

Some new techniques in the solution of three-dimensional non-stationary heat conduction problems for the domains enclosed between the planes z = 0, z = d and the cylindrical surface of complex geometry, whose generatrices are perpendicular to the planes z = const; of problems of convective heat exchange in the laminar fluid flow in the pipes with complex cross-sections for the case, when the surface temperature of the pipe is changing according to a certain law(the section of the thermal initial region); of non-linear boundary value problems for the heat-emitting complex geometry body of revolution.
The structural and regional-structural techniques in combination with integral transformations, variational methods and the structural capabilities of R-functions serve as the basis of the new approaches.
The proposed technique of the non-linear boundary value problem solution for the heat-emitting body yields reciprocal convergence of the numerical results to the exact solution and high accuracy with a comparatively small number of interactions.
The results of the temperature fields and the average over the perimeter Nusselt number computations are given for specific variants.