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Questions tagged [vorticity]

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How to remove sigularities from 3D Vortex Lattice Method

I'm trying to solve aerodynamics of whole aircraft by vortex lattice method (or deeper here). The problem is that sometimes trailing vortex filaments from Horse Shoe Vortexes of main wing hits panels ...
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Vortex Lattice Method: better basis than horse-shoe vortex?

I read several introductory texts about potential flow and vortex lattice method. Basically, it is fitting of some velocity field described by conditions on velocity at some control points using basis ...
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Physics of explosions: just vorticity?

eg 1 2. Is it just vorticity? What's actually happening? (Similar: steam engines, volcanoes, clouds). examples are grid-based, using "vorticity confinement" in Phoenix FD. EDIT Some techniques: "...
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Can we simulate compressible flows by simple direct explicit calculation, without solving systems of linear equations (such as Poisson eq)?

Is this is plausible at all? It seems the most obvious/naive approach, so there's probably good reasons why it's not used - what are they? Viscosity is not important. Starting with inviscid Navier ...
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Compute 2d velocity field with given curl and zero divergence

Given $\omega$ I want to compute the vector $q=(u,v)$ such that $$ v_x - u_y = \omega, \qquad u_x + v_y = 0, \qquad \textrm{in } \Omega $$ and $$ u n_x + v n_y = 0, \qquad \textrm{on } \partial\Omega $...