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Viscous vortex domains method
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<p>The viscous vortex domains (VVD) method is a <a href="/facts/Meshfree_methods/uUhEQD3K">mesh-free</a> method of <a href="/facts/Computational_fluid_dynamics/zuWdtNJp">computational fluid dynamics</a> for directly numerically solving 2D <a href="/facts/Navier-Stokes_equations/48pQugEa">Navier-Stokes equations</a> in <a href="/facts/Lagrangian_and_Eulerian_specification_of_the_flow_field/sYLvgboC">Lagrange coordinates</a>. It doesn't implement any <a href="/facts/Turbulence_model/LK156Prf">turbulence model</a> and free of arbitrary parameters. The main idea of this method is to present <a href="/facts/Vorticity/2oQ6eT4d">vorticity</a> field with discrete regions (domains), which travel with diffusive velocity relatively to fluid and conserve their <a href="/facts/Circulation_(fluid_dynamics)/9SbB60N2">circulation</a>. The same approach was used in Diffusion Velocity method of Ogami and Akamatsu, but VVD uses other discrete formulas </p>