[ztdep]

I watch to know, which residual is the residual for the declaration of P equation. I set it in the control file with a value of 1e-4. but look at the history, the initial residual doesn't reach this value at all when it moves to the next time step.
Could you pleae help me out.

PIMPLE: iteration 9
smoothSolver:  Solving for Ux, Initial residual = 9.98527e-06, Final residual = 9.98527e-06, No Iterations 0
smoothSolver:  Solving for Uy, Initial residual = 2.17254e-05, Final residual = 3.75889e-07, No Iterations 1
smoothSolver:  Solving for Uz, Initial residual = 1.63984e-05, Final residual = 2.7883e-07, No Iterations 1
GAMG:  Solving for p, Initial residual = 0.00718004, Final residual = 6.8337e-05, No Iterations 1
GAMG:  Solving for p, Initial residual = 0.000687475, Final residual = 4.0062e-06, No Iterations 2
GAMG:  Solving for p, Initial residual = 0.000128585, Final residual = 4.95945e-07, No Iterations 2
time step continuity errors : sum local = 4.09267e-09, global = 1.88457e-10, cumulative = -4.71939e-06
GAMG:  Solving for p, Initial residual = 0.0050532, Final residual = 4.78568e-05, No Iterations 1
GAMG:  Solving for p, Initial residual = 0.000482534, Final residual = 2.73658e-06, No Iterations 2
GAMG:  Solving for p, Initial residual = 9.00217e-05, Final residual = 4.57306e-08, No Iterations 4
time step continuity errors : sum local = 3.7738e-10, global = 4.0123e-11, cumulative = -4.71935e-06
smoothSolver:  Solving for XGas, Initial residual = 5.05929e-07, Final residual = 9.49632e-09, No Iterations 1
PIMPLE: iteration 10
smoothSolver:  Solving for Ux, Initial residual = 8.85868e-06, Final residual = 8.85868e-06, No Iterations 0
smoothSolver:  Solving for Uy, Initial residual = 1.94928e-05, Final residual = 5.13358e-07, No Iterations 1
smoothSolver:  Solving for Uz, Initial residual = 1.47483e-05, Final residual = 3.8074e-07, No Iterations 1
GAMG:  Solving for p, Initial residual = 0.164475, Final residual = 0.000373772, No Iterations 2
GAMG:  Solving for p, Initial residual = 0.0229101, Final residual = 6.85787e-05, No Iterations 2
GAMG:  Solving for p, Initial residual = 0.00392778, Final residual = 1.97742e-05, No Iterations 2
time step continuity errors : sum local = 1.49439e-07, global = 1.60263e-08, cumulative = -4.70332e-06
GAMG:  Solving for p, Initial residual = 0.0115202, Final residual = 7.46734e-05, No Iterations 2
GAMG:  Solving for p, Initial residual = 0.00282212, Final residual = 1.31189e-05, No Iterations 2
GAMG:  Solving for p, Initial residual = 0.00056437, Final residual = 5.02107e-07, No Iterations 4
time step continuity errors : sum local = 3.79324e-09, global = 4.65618e-10, cumulative = -4.70286e-06
smoothSolver:  Solving for XGas, Initial residual = 4.46234e-05, Final residual = 8.05643e-07, No Iterations 1
PIMPLE: converged in 10 iterations

[syavash]

Look at the 9th pimple iteration. There it happens.
For the last iteration, the fields are delivered with a RF of 1 and that's why you see a jump in the 10th iteration.
For more details google pimple algorithm. There is a nice wiki page that has illuminated the procedure.

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