METHOD AND SYSTEM FOR GENERATING MULTIBLOCK-STRUCTURED MESH USED IN COMPUTATIONAL FLUID SIMULATIONS

摘要

A method of improving a 2D or 3D multiblock-structured mesh around an object that moves through a fluid medium, such as an aircraft, which is used in the design of said object accounting for a boundary layer behaviour of the fluid medium, said mesh having being generated with quadrilateral (2D) or hexahedral (3D) blocks under constraints that may cause that the mesh include irregular blocks (31) comprising the following steps: finding irregular blocks (31) in the mesh; degenerating said irregular blocks (31) merging contiguous edges or sides (33, 35) in one edge or side (37) so that triangular (2D) or pentahedral (3D) blocks (41) are formed and extending the modifications all along the blocks that are propagated; generating several quadrilateral (2D) or hexahedral (3D) regular blocks (43, 45, 47) inside said triangular (2D) or pentahedral (3D) blocks (41). The invention also refers to a system for carrying out said method.