Process Killed icoFoam

Akshay_11235 · April 2, 2020, 23:39

Hello CFD nerds,

I am working on a solver based on icoFoam which basically does the following

1) Do the normal business using icoFoam
2) Calculate certain mean quantities
3) Change velocity as follows where S = constant vector, so it does not affect the divergence of the velocity field.

U += dt*S;
U.correctBoundaryConditions();

These are the only two steps I have added in the base icoFoam solver.

The code compiles successfully. However, when I run the case, it runs for exactly 23 time steps and thereafter takes awfully too long for one time step increment eventually failing and process is killed.

I would love to hear if you have any comments on this! Thanks a lot!

Regards,

Akshay Patil

Akshay_11235 · April 3, 2020, 06:17

Just curious if there is an elegant way to do the following:

volVectorField U
vector correction

Unew =U - correction

Basically subtract each cell centre value of velocity with the correction vector. The issue seems to reside there.

April 2, 2020, 23:39	Process Killed icoFoam	#1
Akshay_11235 Member Akshay Patil Join Date: Nov 2015 Location: Pune, India Posts: 35 Rep Power: 11	Hello CFD nerds, I am working on a solver based on icoFoam which basically does the following 1) Do the normal business using icoFoam 2) Calculate certain mean quantities 3) Change velocity as follows where S = constant vector, so it does not affect the divergence of the velocity field. U += dt*S; U.correctBoundaryConditions(); These are the only two steps I have added in the base icoFoam solver. The code compiles successfully. However, when I run the case, it runs for exactly 23 time steps and thereafter takes awfully too long for one time step increment eventually failing and process is killed. I would love to hear if you have any comments on this! Thanks a lot! Regards, Akshay Patil

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April 3, 2020, 06:17		#2
Akshay_11235 Member Akshay Patil Join Date: Nov 2015 Location: Pune, India Posts: 35 Rep Power: 11	Just curious if there is an elegant way to do the following: volVectorField U vector correction Unew =U - correction Basically subtract each cell centre value of velocity with the correction vector. The issue seems to reside there.