Point selection approaches for reduced surface representation in mesh motion

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

Previous work by the authors has developed an efficient method for using radial basis functions to achieve high quality mesh motion for large meshes. This method starts by using a chosen error function on the surface mesh to select a subset of the surface ponts; this subset gives a low surface position error and contains a sufficiently small number of points, so as to make the volume motion fast. However, alternatives exist for the error function so here a comparison is made between three different options: the surface error function, the unit function and the power function. Tests run on a structured wing mesh and an unstructured aircraft mesh show that the surface error function gives the lowest errors, but this also requires a deformed surface shape to be known in advance of the simulation. The unit and power functions both avoid the need for a deformed surface, and the unit function is superior as it leads to lower errors.
Translated title of the contributionPoint selection approaches for reduced surface representation in mesh motion
Original languageEnglish
Title of host publication27th AIAA Applied Aerodynamics Conference, San Antonio, Texas, USA
PublisherAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
Number of pages10
Publication statusPublished - Jun 2009

Bibliographical note

Conference Organiser: AIAA
Other identifier: AIAA 2009-3850

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