Computational aspects of conjugate transport phenmena by BEM
Hriberšek, Matjaž
This contribution deals with an overview and computational aspects of Boundary Element and Boundary-Domain Integral Methods for the computation of conjugate transport phenmena. The governing ...equations consist of conservation of mass, momentum, heat energy and species. The continuum, for which these equations are to be solved, can be fluid, solid or porous media. The numerical algorithm uses the velocity vorticity formulation and is based on the vector-potential formulation of flow kinematics. This results in an accurate determination of the boundary vorticity values, allowing computations of flows in complex geometries. In order to lower computational costs the domain velocity computations are performed by the segmentation technique. After the kinematics equation is solved, the vorticiry and scalar transport equations are solved using the macro-element approach based on the use of the diffusion-convection fundamental solution, a key factor in assuring the accuracy of comptations for high Reynolds number flows. The versatility of the developed numerical algorithm is tested on several benchmark and conjugate problems.
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