[Vilma62]

Hello All,

I am trying to simulate oil heating and fluid flow within the cavity. The flow is induced by buoyancy only. The first attempt, by using buoyantBoussinesqPimpleFoam solver runs quite nicely, but when the buoyantPimpleFoam solver is invoked, the simulation crashes soon after the start:

Starting time loop

Courant Number mean: 0 max: 0
Time = 0.05

diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
PIMPLE: iteration 1
DILUPBiCG:  Solving for h, Initial residual = 1, Final residual = 0.001769244, No Iterations 1
GAMG:  Solving for p_rgh, Initial residual = 0.7380157, Final residual = 1.57685e+008, No Iterations 100
GAMG:  Solving for p_rgh, Initial residual = 0.9516482, Final residual = 1561.276, No Iterations 100
GAMG:  Solving for p_rgh, Initial residual = 0.9632775, Final residual = 48.57067, No Iterations 100
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 3.729934e+011, global = 0.0002506613, cumulative = 0.0002506613
GAMG:  Solving for p_rgh, Initial residual = 0.9792977, Final residual = 6.278125e+010, No Iterations 100
GAMG:  Solving for p_rgh, Initial residual = 0.9753959, Final residual = 3.375873e+009, No Iterations 100
GAMG:  Solving for p_rgh, Initial residual = 0.9655519, Final residual = 1.459729e+010, No Iterations 100
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 2.038088e+016, global = 1, cumulative = 1.000251
PIMPLE: iteration 2
DILUPBiCG:  Solving for h, Initial residual = 1, Final residual = 6.087396e+032, No Iterations 1001
GAMG:  Solving for p_rgh, Initial residual = nan, Final residual = nan, No Iterations 100
GAMG:  Solving for p_rgh, Initial residual = nan, Final residual = nan, No Iterations 100


--> FOAM FATAL IO ERROR:
wrong token type - expected Scalar, found on line 9 the word 'nan'

file: C:/Temp/Tube_buoyantPimpleFoam/system/data.solverPerformance.p_rgh at line 9.

    From function operator>>(Istream&, Scalar&)
    in file lnInclude/Scalar.C at line 93.

FOAM exiting

Obviously, my setup is incorrect (attached; need to say I'm novice?).

I would appreciate very much your help.

Thank you in advance.