Mesh quality drastically going down, when mesh grown normal to the vortex generator -- CFD Online Discussion Forums

November 15, 2018, 15:09	Mesh quality drastically going down, when mesh grown normal to the vortex generator	#1
varunraj.dondapati New Member ANDHRA PRADESH Join Date: Nov 2018 Posts: 1 Rep Power: 0	I have been trying to create Hexa mesh for a vortex generator on a 3D airfoil in Icem Cfd. I tried O-grid as well as H grid for VG region. In both cases, the mesh quality i.e Angle and Det 2x2x2 are very good when yplus and growth are not specified from the VG wall. Once I specify growth with yplus near vg wall, quality is becoming poor. Visually I cannot diagnose any issue, but angle quality is being shown as below 18 deg. Can anyone help me out with what exactly is happening there?

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