New Member
fairus
Join Date: Apr 2010
Posts: 20
Rep Power: 8

Dear all,
I added the following line in parcel.C file. (after the last line of updateParcelProperties member function)
Info << " d() = " << d() << endl;
Then I run dieselFoam with 3 decompositions and got the following output in log file: Evolving Spray
d() = 1.12798e05
d() = 1.12798e05
d() = 1.57086e05
d() = 1.57086e05
d() = 1.54595e05
.....
....
Solving chemistry
diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
DILUPBiCG: Solving for Ux, Initial residual = 0.00170744, Final residual = 4.95922e07, No Iterations 5
DILUPBiCG: Solving for Uy, Initial residual = 0.00181109, Final residual = 3.96033e07, No Iterations 5
DILUPBiCG: Solving for Uz, Initial residual = 0.000120342, Final residual = 1.81973e07, No Iterations 4
DILUPBiCG: Solving for C7H16, Initial residual = 0.820013, Final residual = 9.75537e07, No Iterations 8
DILUPBiCG: Solving for O2, Initial residual = 0.000302092, Final residual = 3.62254e07, No Iterations 3
DILUPBiCG: Solving for CO2, Initial residual = 0, Final residual = 0, No Iterations 0
DILUPBiCG: Solving for H2O, Initial residual = 0, Final residual = 0, No Iterations 0
DILUPBiCG: Solving for h, Initial residual = 0.000105396, Final residual = 4.97253e07, No Iterations 3
DICPCG: Solving for p, Initial residual = 0.19397, Final residual = 8.81985e10, No Iterations 58
DICPCG: Solving for p, Initial residual = 9.91074e10, Final residual = 9.91074e10, No Iterations 0
diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 1.28234e13, global = 2.93383e14, cumulative = 2.93383e14
DICPCG: Solving for p, Initial residual = 0.0156706, Final residual = 9.4495e10, No Iterations 56
DICPCG: Solving for p, Initial residual = 9.90869e10, Final residual = 9.90869e10, No Iterations 0
diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 1.2799e13, global = 3.14686e14, cumulative = 2.13031e15
DILUPBiCG: Solving for epsilon, Initial residual = 0.002522, Final residual = 7.4453e07, No Iterations 4
DILUPBiCG: Solving for k, Initial residual = 0.000132955, Final residual = 6.47361e07, No Iterations 3
Number of parcels in system....  50
Injected liquid mass...........  27.9464 mg
Liquid Mass in system..........  0.00560216 mg
SMD, Dmax......................  16.8812 mu, 53.4697 mu
Added gas mass.................  27.9408 mg
Evaporation Continuity Error...  4.44956e06 mg
ExecutionTime = 1.21 s ClockTime = 1 s
However, when I run with 7 decompositions I got the following: Evolving Spray
Solving chemistry
diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
DILUPBiCG: Solving for Ux, Initial residual = 0.00153395, Final residual = 4.14953e07, No Iterations 5
DILUPBiCG: Solving for Uy, Initial residual = 0.00163918, Final residual = 3.44191e07, No Iterations 5
DILUPBiCG: Solving for Uz, Initial residual = 9.21614e05, Final residual = 6.42257e07, No Iterations 3
DILUPBiCG: Solving for C7H16, Initial residual = 0.828965, Final residual = 5.45344e07, No Iterations 10
DILUPBiCG: Solving for O2, Initial residual = 0.000294897, Final residual = 4.85681e07, No Iterations 3
DILUPBiCG: Solving for CO2, Initial residual = 0, Final residual = 0, No Iterations 0
DILUPBiCG: Solving for H2O, Initial residual = 0, Final residual = 0, No Iterations 0
DILUPBiCG: Solving for h, Initial residual = 9.22275e05, Final residual = 4.16487e07, No Iterations 3
DICPCG: Solving for p, Initial residual = 0.184617, Final residual = 7.51892e10, No Iterations 59
DICPCG: Solving for p, Initial residual = 0.0012862, Final residual = 9.94569e10, No Iterations 47
diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 1.33238e13, global = 5.25939e15, cumulative = 5.25939e15
DICPCG: Solving for p, Initial residual = 0.010484, Final residual = 9.81269e10, No Iterations 53
DICPCG: Solving for p, Initial residual = 0.000409979, Final residual = 9.88064e10, No Iterations 44
diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 1.32206e13, global = 2.41525e14, cumulative = 1.88931e14
DILUPBiCG: Solving for epsilon, Initial residual = 0.00246708, Final residual = 4.9188e07, No Iterations 4
bounding epsilon, min: 9.6188 max: 2.27937e+07 average: 31722.1
DILUPBiCG: Solving for k, Initial residual = 8.8404e05, Final residual = 5.15251e07, No Iterations 3
Number of parcels in system....  59
Injected liquid mass...........  27.9464 mg
Liquid Mass in system..........  0.00657278 mg
SMD, Dmax......................  16.638 mu, 53.4697 mu
Added gas mass.................  27.9408 mg
Evaporation Continuity Error...  0.000977339 mg
ExecutionTime = 0.79 s ClockTime = 1 s
The lines with "d()" is not shown any more in 7 processors simulation.
Any idea why this happened?
Fairus
