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 contribution | Point selection approaches for reduced surface representation in mesh motion |
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Original language | English |
Title of host publication | 27th AIAA Applied Aerodynamics Conference, San Antonio, Texas, USA |
Publisher | American Institute of Aeronautics and Astronautics Inc. (AIAA) |
Number of pages | 10 |
Publication status | Published - Jun 2009 |
Bibliographical note
Conference Organiser: AIAAOther identifier: AIAA 2009-3850