26th Congress of International Council of the Aeronautical Sciences
including the 8th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference
14 - 19 September 2008, Anchorage, Alaska, USA
Paper ICAS2008-P2.4

A FAST GRID DEFORMATION ALGORITHM AND IT’S APPLICATION

J. Z. Chai, X. L. Han, H. L. Che
The First Aircraft Institute, China

Keywords: grid deformation, Delaunay map, unsteady flows

A simple and efficient dynamic grid deformation technique is proposed for computing unsteady flow problems with geometrical deformation, relative body movement or shape changes due to aerodynamic optimisation and fluid-structure interaction. A Delaunay graph of the solution domain can be moved easily during the geometric dynamic deformation, even large distortion.

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