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Article Dans Une Revue International Journal of Thermal Sciences Année : 2009

Developing a method for coupling branch modal models

Résumé

An original method is proposed to reduce diffusion problem characterized by a thermal contact resistance and non-linear boundary conditions. The method use a substructuring technique in which a branch modal basis is obtained for each subdomain. The amalgam reduction method for each basis leads to a global reduced model. A specific flux jump functional allows to optimize reduction. The numerical test case is an electronic component coupled with a radiator and which follows a thermal regulation. For this case a numerical study is made in order to observe the influence of the flux jump functional. Comparison between the detailed model and the reduced one with optimal parameters gives a gain in computation time of 82 for the same precision.

Dates et versions

hal-01180013 , version 1 (23-07-2015)

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Pierre Olivier Laffay, Olivier Quéméner, Alain Neveu. Developing a method for coupling branch modal models. International Journal of Thermal Sciences, 2009, 48 (6), pp.1060--1067. ⟨10.1016/j.ijthermalsci.2008.11.002⟩. ⟨hal-01180013⟩

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