Konstantine Kourbatski
Ansys Employee

Thank you. If it's only two species, then the mole fraction should be constant if mass fraction is a constant for the 1st species. Can you plot both mass and mole fractions with Node Values off and attach both plots? This will show true cell center values at the adjacent cells as they are calculated by the solver and remove any post-processing interpolation artifacts. Also, is this R16 you are using, right? n