Improved ALE mesh velocities for moving bodies
Rainald Löhner,Chi Yang +1 more
227
TL;DR: In this article, a Laplacian smoothing of the mesh velocities with variable diffusivity based on the distance from moving bodies is introduced, which enforces a more uniform mesh velocity in the region close to the moving bodies.
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Abstract: A Laplacian smoothing of the mesh velocities with variable diffusivity based on the distance from moving bodies is introduced This variable diffusivity enforces a more uniform mesh velocity in the region close to the moving bodies Given that in most applications these are regions where small elements are located, the new procedure decreases element distortion considerably, reducing the need for local or global remeshing, and in some cases avoiding it altogether
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Citations
Explicit and Robust Inverse Distance Weighting Mesh Deformation for CFD
Jeroen A. S. Witteveen
- 04 Jan 2010
TL;DR: In this paper an explicit mesh deformation method is proposed based on Inverse Distance Weighting (IDW) interpolation of the boundary node displacements to the interior of the flow domain, which results in a straightforward implementation and parallelization.
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Chapter 14 Arbitrary Lagrangian-Eulerian Methods
Jean Donea,Antonio Huerta +1 more
- 01 Jan 2004
TL;DR: The numerical simulation of multidimensional problems in fluid dynamics and nonlinear solid mechanics often requires coping with strong distortions of the continuum under consideration while allowing for a clear delineation of free surfaces and fluid–fluid, solid–solid, or fluid–structure interfaces.
A three-dimensional finite element arbitrary Lagrangian–Eulerian method for shock hydrodynamics on unstructured grids☆
Jacob Waltz,Nathaniel R. Morgan,Thomas R. Canfield,Marc R.J. Charest,L. D. Risinger,John G. Wohlbier +5 more
TL;DR: In this article, a 3D finite element finite element (FE) arbitrary Lagrangian-Eulerian (ALE) method for shock hydrodynamics on unstructured grids is presented.
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Fully resolved viscoelastic particulate simulations using unstructured grids
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49
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