ansys flotran error message HELP!!
 

i`m modelling diverging flow in laminar fluid flow over an angled flate plate in 2D.
the no. of iterations is set at 1000.

when i run flotran for the solution,i get the error,

Error attempting to back up unuseable results file. Check READ/WRITE permission. File.rfo





Error While building flotran data object

i`m getting the same error ; with all simulations... however simple they may be.
how to overcome this??:confused:
thanks in advance.