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Incompressible Flow Simulation on Vortex Segment Clouds
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DOI：10.1145/3450626.3459865.png)
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Abstract
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We propose a novel Lagrangian geometric representation using segment clouds to simulate incompressible fluid exhibiting strong anisotropic vortical features. The central component of our approach is a cloud of discrete segments enhanced by a set of local segment reseeding operations to facilitate both the geometrical evolution and the topological updates of vortical flow. We build a vortex dynamics solver with the support for dynamic solid boundaries based on discrete segment primitives. We demonstrate the efficacy of our approach by simulating a broad range of challenging flow phenomena, such as reconnection of non-closed vortex tubes and vortex shedding behind a rotating object.
Keywords:
Lagrangian fluid simulation
vortex method
segment cloud
vortex reconnection
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