I have a beam which is moving according to a dynamic force. In the environment where the beam is moving there is fluid. Therefore, viscous force is exerted to the beam due to the viscosity of the fluid. Now, I would like to implement the viscosity of the fluid in the model so that the beam senses the fluid. What is the easiest way for doing that?
I thought about using the viscous damping which is normally used as the stabilizer of the solution? But I was not sure if the net effect is going to be the same as a real viscous force. Besides, when I use Dynamic, implicit type of analysis there is no place where I can define any damping for the solution. Is there any other easy solution for this problem?
Thank you in advance for your time.
It certainly would be convenient to use the standard viscous damping stabilization. I am not sure, however, if that will give you accurate results.
Another option would be to mesh the fluid and then assign appropriate viscoelastic behavior to that fluid.
-Jorgen
@jbrektor I saw some of your comments on abaqus viscous modelling. I am new to abaqus modelling and I am currently working on modelling a viscoelastic Asthenosphere in a subduction zone model. I looked at the abaqus inbuilt viscoelastic material parameters and I don't have any prony series constants or stress relaxation data. Do you have any suggestions on how can I model a viscoelastic Asthenosphere with default abaqus material model? or will I have to write a user subroutine for this?
Thank you,
Ashay Panse.
Hi,
In additions to Dr. Jorgans reply you may also run co-simulaiton Analaysis in Abaqus 6.10 in which you can couple Abaqus/Standard and /CFD.
Shripad