Automatic Time Step supported by icoFsiElasticNonLinULSolidFoam?

Harak · June 16, 2015, 13:01

Hey,

I wonder if automatic time step is supported by the icoFsiElasticNonLinULSolidFoam solver?

I have a simulation which crashes due to high Couranr numbers. So, I wanted to set adjustTimeStep to yes and maxCo to 0.5 to make OF take care about the timesteps. But somehow simulations are still defined by deltaT…?

Thanks

Svensen · June 20, 2015, 05:30

Sorry for my question, but you use the solver which is very interesting to me. You said that you have the stability problems due to the high Courant number. But my question is: do you have any OTHER problems with solver ? I and some guys here cannot properly run it for even a simple FSI simulations (for example, elastic pipe). Our simulations crashes but it is not because of high Courant number, it's something else... So, do you have a stable and reliable solution of FSI problem or your simulations also crashes ? Maybe you've already find a way how to fix FSI solver...
Thanks

Harak · June 22, 2015, 08:10

Quote:

Originally Posted by Svensen

Sorry for my question, but you use the solver which is very interesting to me. You said that you have the stability problems due to the high Courant number. But my question is: do you have any OTHER problems with solver ? I and some guys here cannot properly run it for even a simple FSI simulations (for example, elastic pipe). Our simulations crashes but it is not because of high Courant number, it's something else... So, do you have a stable and reliable solution of FSI problem or your simulations also crashes ? Maybe you've already find a way how to fix FSI solver...
Thanks

No, I don't have any other problems with this solver... I have already run it for some other cases and it worked very well.

How did you define your time step? Do you use automatic time step or have you defined one manually?

June 16, 2015, 13:01	Automatic Time Step supported by icoFsiElasticNonLinULSolidFoam?	#1
Harak Member Join Date: Dec 2014 Posts: 50 Rep Power: 11	Hey, I wonder if automatic time step is supported by the icoFsiElasticNonLinULSolidFoam solver? I have a simulation which crashes due to high Couranr numbers. So, I wanted to set adjustTimeStep to yes and maxCo to 0.5 to make OF take care about the timesteps. But somehow simulations are still defined by deltaT…? Thanks

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
AMI speed performance	danny123	OpenFOAM	21	October 24, 2020 04:13
High Courant Number @ icoFoam	Artex85	OpenFOAM Running, Solving & CFD	11	February 16, 2017 13:40
Rapidly decreasing deltaT for interDyMFoam	chrisb2244	OpenFOAM Running, Solving & CFD	3	July 1, 2014 16:40
Full pipe 3D using icoFoam	cyberbrain	OpenFOAM	4	March 16, 2011 09:20
IcoFoam parallel woes	msrinath80	OpenFOAM Running, Solving & CFD	9	July 22, 2007 02:58

June 20, 2015, 05:30		#2
Svensen Senior Member Join Date: Jan 2015 Posts: 150 Rep Power: 11	Sorry for my question, but you use the solver which is very interesting to me. You said that you have the stability problems due to the high Courant number. But my question is: do you have any OTHER problems with solver ? I and some guys here cannot properly run it for even a simple FSI simulations (for example, elastic pipe). Our simulations crashes but it is not because of high Courant number, it's something else... So, do you have a stable and reliable solution of FSI problem or your simulations also crashes ? Maybe you've already find a way how to fix FSI solver... Thanks