Did You Know there is a new feature in HyperMesh 12.0 called dynamic BL reduction. In thin channels the boundary layer (BL) height needs to be adjusted to avoid colliding elements. cfd_BL

Old way (two step approach)1. Before meshing starts, compute reduction factors for the BL height based on an estimated BL cfd_Bl2 2. Generate the BL Disadvantage: the BL reduction factors might not work for all situations, since they are computed based on an estimated BL.

New way (one step)• The BL gets reduced dynamically during the generation. This is very accurate since the reduction is made during generation. Check out the “BL parameters” subpanel cfd_Bl3 (February 18, 2013)

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