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Improved ALE mesh velocities for moving bodies (1996)

Löhner, Rainald ; Yang, Chi

Chichester : Wiley-Blackwell

Communications in Numerical Methods in Engineering 12 (1996), S. 599-608

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ISSN: 1069-8299

Keywords: finite elements ; moving grids ; moving bodies ; mesh velocity ; ALE ; Engineering ; Engineering General

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Mathematics , Technology

Notes: 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.

Additional Material: 11 Ill.

Type of Medium: Electronic Resource

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