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Mesh refinement & adaptive meshing tools

Sev­er­al tools are pro­vid­ed for lo­cal re­fine­ment of the vol­ume mesh in or­der to bet­ter cap­ture mesh sen­si­tive phe­nom­e­nons such as tur­bu­lent ed­dies or bound­ary lay­er sep­a­ra­tion-reat­tach­ment. Dur­ing the geom­e­try set up, the user can de­fine sur­faces that will be used by the mesh­er to spec­i­fy a lo­cal mesh size in­side the vol­ume. If no in­ter­nal mesh is used to spec­i­fy the size, the mesh­er will use a lin­ear in­ter­po­la­tion of the sur­face sizes that de­fine the vol­ume en­clo­sure.
It is al­so pos­si­ble to spec­i­fy sev­er­al anisotrop­ic el­e­ments to be added to the bound­ary lay­er in or­der to bet­ter rep­re­sent close-to-the-wall ef­fects.
An­oth­er pos­si­bil­i­ty would be to ac­ti­vate the adap­tive mesh re­fine­ment fea­ture. The solver will use an a-pos­te­ri­ori er­ror es­ti­ma­tor to com­pute a new mesh size bound­ed by the user to sat­is­fy a max­i­mum per­cep­tu­al glob­al er­ror. This would sim­pli­fy mesh gen­er­a­tion while pro­vid­ing ac­cu­rate re­sults.

Adaptive mesh refinement