paraview in micros-cale
 

i use paraview post processing tool as a default tool for openfoam ,, i tried it many times in a normal scales ,, but when i get down to micro-scale ,, the plot over a line doesn't show any data like that ;

http://img51.imageshack.us/img51/4589/84504066.png

any one know why paraview do such thing , and how i show the data
paraview have problems with microscale ?!

thank you very much
best regards.