[JSSS]

Hello all

I have just finished running a steadystate solution and I intend to use its solution as an initial condition for a new transient solution where I deploy a scalar transport field to act as a tracer gas. However even though I swapped the ddt schemes from steady state to euler, it is still not displaying the courant number in the logs (the solution also doesn't look like it's transient). I am running simpleFoam and in parallel. I did not recompose before switching. Here's a small section of the logs

Time = 0.0009

smoothSolver:  Solving for Ux, Initial residual = 5.299686e-06, Final residual = 2.162227e-07, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 4.553134e-05, Final residual = 1.709658e-06, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.0002430396, Final residual = 1.114784e-05, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.007326301, Final residual = 0.0003593539, No Iterations 2
time step continuity errors : sum local = 1.773572e-11, global = -1.730942e-12, cumulative = -1.344209e-11
smoothSolver:  Solving for epsilon, Initial residual = 1.622915e-08, Final residual = 2.622095e-13, No Iterations 1
smoothSolver:  Solving for k, Initial residual = 1.132605e-07, Final residual = 2.673314e-12, No Iterations 1
ExecutionTime = 756.36 s  ClockTime = 758 s

scalarTransport execute: s
[6] **codeConstrain**
[1] **codeConstrain**
[0] **codeConstrain**
[5] **codeConstrain**
[2] **codeConstrain**
[4] **codeConstrain**
[3] **codeConstrain**
[9] **codeConstrain**
[8] **codeConstrain**
[7] **codeConstrain**
smoothSolver:  Solving for s, Initial residual = 4.004279e-06, Final residual = 1.686405e-09, No Iterations 1
[6] **codeConstrain**
[1] **codeConstrain**
[3] **codeConstrain**
[2] **codeConstrain**
[0] **codeConstrain**
[5] **codeConstrain**
[7] **codeConstrain**
[8] **codeConstrain**
[4] **codeConstrain**
[9] **codeConstrain**
smoothSolver:  Solving for s, Initial residual = 2.672646e-06, Final residual = 1.257604e-09, No Iterations 1

scalarTransport write: scalar1
	s

Time = 0.001

smoothSolver:  Solving for Ux, Initial residual = 5.265667e-06, Final residual = 2.148423e-07, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 4.534023e-05, Final residual = 1.709122e-06, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.0002395136, Final residual = 1.122452e-05, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.009247327, Final residual = 0.0008550793, No Iterations 1
time step continuity errors : sum local = 4.22062e-11, global = 1.982301e-12, cumulative = -1.145979e-11
smoothSolver:  Solving for epsilon, Initial residual = 1.625604e-08, Final residual = 2.622987e-13, No Iterations 1
smoothSolver:  Solving for k, Initial residual = 1.133583e-07, Final residual = 2.672715e-12, No Iterations 1
ExecutionTime = 834.04 s  ClockTime = 836 s

scalarTransport execute: s
[5] **codeConstrain**
[2] **codeConstrain**
[9] **codeConstrain**
[6] **codeConstrain**
[3] **codeConstrain**
[1] **codeConstrain**
[4] **codeConstrain**
[0] **codeConstrain**
[8] **codeConstrain**
[7] **codeConstrain**
smoothSolver:  Solving for s, Initial residual = 3.56421e-06, Final residual = 1.497856e-09, No Iterations 1
[1] **codeConstrain**
[5] **codeConstrain**
[6] **codeConstrain**
[3] **codeConstrain**
[4] **codeConstrain**
[2] **codeConstrain**
[9] **codeConstrain**
[0] **codeConstrain**
[8] **codeConstrain**
[7] **codeConstrain**
smoothSolver:  Solving for s, Initial residual = 2.396422e-06, Final residual = 1.125167e-09, No Iterations 1

scalarTransport write: scalar1
	s

End

Let me know if you need me to post anything that you may need.

[Yann]

Hello,

simpleFoam is a steady state solver. You need to run pimpleFoam for a transient case.

Cheers,
Yann