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Dual reciprocity BEM-BDIM technique for conjugate heat transfer computations. (English) Zbl 0973.76062

Summary: Numerical simulation of conjugate heat transfer problems by methods based on the boundary element method (BEM) promises great flexibility of the computational model. A combination of dual reciprocity BEM for computation of heat conduction in solid regions with boundary domain integral method for computation of heat transfer and fluid flow in fluid regions also represents a promising way in numerical simulation of conjugate heat transfer. It combines boundary-only discretization of solid parts and boundary and internal discretization of fluid regions. In order to efficiently apply iterative solvers, the subdomain technique is used both in solid and in fluid parts of the computational domain. The results are compared with those on a thermal shock problem achieved by a pure boundary domain integral formulation, and are verified on the test case of conjugate natural convection in a cavity with conducting side.

MSC:

76M15 Boundary element methods applied to problems in fluid mechanics
76D05 Navier-Stokes equations for incompressible viscous fluids
80A20 Heat and mass transfer, heat flow (MSC2010)
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