METHODS AND SYSTEMS FOR GENERATING SUITABLE MESHES FOR HYBRID RANS/LES MODELLING

摘要

Methods and systems for generating suitable meshes for hybrid RANS/LES modelling according to which the mesh of an object (11) that is moving through a fluid medium that is used in its design or analysis in conjunction with the hybrid method is generated using the following steps: a) creating an internal "C" topology (21) around said object (11) for the description of the boundary layer; b) creating an external "C" topology (23) covering a region of the space that includes the separation region; c) locating the separation region and adapting it to said internal and external "C" topologies (21, 23) such that the external "C" topology (23) is adapted to the size of the separated region and the internal "C" topology (21) is adapted to the size of the boundary layer; d) refining the mesh in the separation region in accordance with the specifications of the RANS/LES method.