[tiagom]

hi to you all.
i need help with a problem. as can be seen from the picture attached i keep getting the same error. so far attempted to:
- change the mesh to reduce skewness (so far its at 0.33)
- reduce the courant number.
- increasing the tempreture at which the computation is performed

nothing seems to work,
the problem i am trying to solve is a 2d simulation of a turbine tip blade flow, pressure inlet of 1 atmosphere and pressure outlet of 0.8 atmosphere's.
computation was first performed using explicit 1st order and then changed to implicit 2nd order where the problem occured.

any help i could get with this would be greatly appreciated.