Previous: Mesh generation Up: Mesh generation Next: Analysis for cell restriction This is an automatically generated documentation by LaTeX2HTML utility. In case of any issue, please, contact us at info@cfdsupport.com. Generally about meshes for turbulent RANS flows Turbulent boundary layer contains near wall region ( ) that holds Law of the wall:7.1(7.1)Turbulent boundary layer can be displayed in dimensionless coordinates a Figure: A sketch of developed turbulent boundary layer in dimensionless coordinates and Friction velocity can be expressed: (7.2) Wall shear stress can be expressed:7.2(7.3) Turbulence modeling has important parameter can be expressed:(7.4) While first cell at the wall corresponds to , turbulence model (Low-Reynolds model) can be used in whole computational domainIf first cell at the wall corresponds to , it is necessary to model the turbulent quantities using the wall functionsHaving real geometries and external aerodynamics the requirement on can be barely reachedWall functions are often used Previous: About snappyHexMesh Up: Meshing with snappyHexMesh Next: Mesh generation process OpenFOAM Training by CFD Support, CFD SUPPORT, info@cfdsupport.com +420 212 243 883 © CFD support, s.r.o., Sokolovská 270/201, 190 00 Praha 9, Czech Republic