A multidomain boundary element method for unsteady laminar flow using stream function-vorticity equationsRamšak, Matjaž (Avtor) Škerget, Leopold (Avtor) Hriberšek, Matjaž (Avtor) Žunič, Zoran (Avtor) fluid mechanicsviscous fluidunsteady laminar flowboundary element methodmultidomain modelstream functionvorticity formulationbackward facing step flowflow past a cylinderThe paper deals with the Boundary Element Method (BEM) for modelling 2D unsteady laminar flow using stream function-vorticity formulation of the Navier-Stokes equations. The numerical algorithm for solving a general parabolic diffusion-convection equation is based on linear mixed elements and a multidomain model also known as subdomain technique. Robustness, accuracy and economy of the developed numerical algorithm is shown on a standard case of steady backward facing step flow and a periodic flow past a circular cylinder test case.20052012-06-01 10:07:21Neznano27223sl