[mauro_minervino]

Hello, I'm writing to report an issue I found running steady RANS computations on an aircraft configuration with engine inflow boundary active:
In FALCON versions, some computations with engine inflow BC suddenly blow-up after many iterations, when force coefficients are about to be stabilized.
I did not find, for the same case, any problem running version 5.0.0 (RAVEN).
Moreover, if I replace this boundary condition at the engine inlet with another one (far-field for example) the computation runs with no problem.

I noticed that, in the file "solver_direct_mean.cpp", routine CEulerSolver::BC_Engine_Inflow, there's a section commented out:

/*--- Viscous contribution, commented out because serious convergence problems ---*/

that is not commented in version 5.0.0. Probably you are already aware of this issue.

Kind Regards,
Mauro