turbHeat.rea
-3                         spatial dimension (if negative dump .rea file)
2                         number of fields
#
#=======================================================================
#
turbHeat 1                    
-8  8  -8                 nelx,nely,nelz 
0.0   6.283     1.0   
-1.0   -0.98    -0.89  -0.6  0.0  0.6 0.89 0.98 1.0 
0.0   3.142     1.0
P  ,P  ,W  ,W  ,P  ,P     bc's  ! west,east,south,north,buttom,top
P  ,P  ,W  ,W  ,P  ,P     bc's  ! west,east,south,north,buttom,top