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****I just run the case from OpenFOAM-v1806/tutorials/incompressible/simpleFoam/turbineSiting. There is a problem about sloving the UEqn and pEqn. Log as shown below, Initial residual,Final residual amd No Iterations are always 0. I think this results from the ABL boundary condition, becasue there are no problems from other cases under tutorials/incompressible/simpleFoam. ****

============================================================ Starting time loop

Time = 1

smoothSolver: Solving for Ux, Initial residual = 0, Final residual = 0, No Iterations 0

smoothSolver: Solving for Uy, Initial residual = 0, Final residual = 0, No Iterations 0

smoothSolver: Solving for Uz, Initial residual = 0, Final residual = 0, No Iterations 0

GAMG: Solving for p, Initial residual = 0, Final residual = 0, No Iterations 0

time step continuity errors : sum local = 0, global = 0, cumulative = 0

smoothSolver: Solving for epsilon, Initial residual = 0.0886043707687, Final residual = 0.00415880864373, No Iterations 3

smoothSolver: Solving for k, Initial residual = 0.999999999999, Final residual = 0.0561633717339, No Iterations 4 ExecutionTime = 1.14 s ClockTime = 1 s

Time = 2

smoothSolver: Solving for Ux, Initial residual = 0, Final residual = 0, No Iterations 0

smoothSolver: Solving for Uy, Initial residual = 0, Final residual = 0, No Iterations 0

smoothSolver: Solving for Uz, Initial residual = 0, Final residual = 0, No Iterations 0

GAMG: Solving for p, Initial residual = 0, Final residual = 0, No Iterations 0

time step continuity errors : sum local = 0, global = 0, cumulative = 0

smoothSolver: Solving for epsilon, Initial residual = 0.0528178005233, Final residual = 0.00435780437261, No Iterations 2

smoothSolver: Solving for k, Initial residual = 0.49548245865, Final residual = 0.0477465631246, No Iterations 3

ExecutionTime = 1.37 s ClockTime = 1 s

Time = 3

smoothSolver: Solving for Ux, Initial residual = 0, Final residual = 0, No Iterations 0

smoothSolver: Solving for Uy, Initial residual = 0, Final residual = 0, No Iterations 0

smoothSolver: Solving for Uz, Initial residual = 0, Final residual = 0, No Iterations 0

GAMG: Solving for p, Initial residual = 0, Final residual = 0, No Iterations 0

time step continuity errors : sum local = 0, global = 0, cumulative = 0

smoothSolver: Solving for epsilon, Initial residual = 0.0972013129464, Final residual = 0.00472751378512, No Iterations 3

smoothSolver: Solving for k, Initial residual = 0.394880724125, Final residual = 0.0221518636059, No Iterations 4

ExecutionTime = 1.59 s ClockTime = 1 s

...

This case is also tested in OpenFOAM-v1712 and it looks no problem. The log is shown below.

=========================================================================== Starting time loop

Time = 1

smoothSolver: Solving for Ux, Initial residual = 1, Final residual = 0.0477489367561, No Iterations 1

smoothSolver: Solving for Uy, Initial residual = 1, Final residual = 0.0538730764114, No Iterations 2

smoothSolver: Solving for Uz, Initial residual = 1, Final residual = 0.0669858308617, No Iterations 2

GAMG: Solving for p, Initial residual = 1, Final residual = 0.0621855191776, No Iterations 3

time step continuity errors : sum local = 0.000974118673505, global = 1.89337013488e-05, cumulative = 1.89337013488e-05

smoothSolver: Solving for epsilon, Initial residual = 0.0608576422262, Final residual = 0.00235143170564, No Iterations 3

smoothSolver: Solving for k, Initial residual = 1, Final residual = 0.0517062220961, No Iterations 2 ExecutionTime = 1.12 s ClockTime = 1 s

Time = 2

smoothSolver: Solving for Ux, Initial residual = 0.255464680163, Final residual = 0.0195594486154, No Iterations 2

smoothSolver: Solving for Uy, Initial residual = 0.308510924562, Final residual = 0.0110977491911, No Iterations 3

smoothSolver: Solving for Uz, Initial residual = 0.284472419959, Final residual = 0.0280404303152, No Iterations 2

GAMG: Solving for p, Initial residual = 0.13322215283, Final residual = 0.0101976026944, No Iterations 3

time step continuity errors : sum local = 0.000902796719122, global = -3.47014708889e-05, cumulative = -1.57677695401e-05

smoothSolver: Solving for epsilon, Initial residual = 0.0346080936392, Final residual = 0.00267021263905, No Iterations 2

smoothSolver: Solving for k, Initial residual = 0.270329057688, Final residual = 0.0168602729862, No Iterations 2 ExecutionTime = 1.38 s ClockTime = 2 s

Time = 3

smoothSolver: Solving for Ux, Initial residual = 0.403798686956, Final residual = 0.0335683918725, No Iterations 2

smoothSolver: Solving for Uy, Initial residual = 0.32172625807, Final residual = 0.0306454045428, No Iterations 2

smoothSolver: Solving for Uz, Initial residual = 0.347723798359, Final residual = 0.0245220605412, No Iterations 2

GAMG: Solving for p, Initial residual = 0.0412987455385, Final residual = 0.00277826618771, No Iterations 2

time step continuity errors : sum local = 0.000703580205099, global = 0.000107184465015, cumulative = 9.14166954752e-05

smoothSolver: Solving for epsilon, Initial residual = 0.0277288699551, Final residual = 0.00233613182817, No Iterations 2

smoothSolver: Solving for k, Initial residual = 0.262482535305, Final residual = 0.021940268746, No Iterations 2 ExecutionTime = 1.62 s ClockTime = 2 s

Time = 4

smoothSolver: Solving for Ux, Initial residual = 0.179980986317, Final residual = 0.0153420244482, No Iterations 2

smoothSolver: Solving for Uy, Initial residual = 0.176634654264, Final residual = 0.0065788228814, No Iterations 3

smoothSolver: Solving for Uz, Initial residual = 0.191853265263, Final residual = 0.01904668678, No Iterations 2

GAMG: Solving for p, Initial residual = 0.0729952671173, Final residual = 0.00340694854856, No Iterations 3

time step continuity errors : sum local = 0.000569941231663, global = 7.07002016898e-05, cumulative = 0.000162116897165

smoothSolver: Solving for epsilon, Initial residual = 0.0271072262376, Final residual = 0.00108121164345, No Iterations 3

smoothSolver: Solving for k, Initial residual = 0.212894843102, Final residual = 0.00862376163002, No Iterations 3 ExecutionTime = 1.9 s ClockTime = 2 s

## Reattaching the author to the issue ticket: @chuck ##