problem of DLR_F4 wingbody computed by CFX5
 

hi all:

resently,when I was computed DLR_F4 wingbody in CFX5,I make hexdra grids by icem5.1 ,about 2200000 hexdra grid nodes, using inlet outlet symm and opening boundary,Hiresolutions and physcal timescale = 0.0015, timsteps=500, but finally, result can not be converged, who could tell me the reason of not being converged? thanks!