You can find some sources related to Magneto Rheological (MR) simulation on youtube with keywords: Magneto Rhelogical fluent simulation using Ansys fluent

There is research paper related to MR: Multiphysics Analysis of a Magneto -rheological Damper and Experimental Validation by Alan Sternberg, Juan Carlos de la Llera, Rene Zemp

For more details you can refer to online available thesis on FINITE ELEMENT BASED MODELING OF MAGNETORHEOLOGICAL DAMPERS by kedar Malankar

Hope you will find this useful.

Thank you