Is it appropriate to simulate the water flow with solid particles with MUSIG model? When I perform this, there is always an error in the *.fo file with following words: ITERATIONS BETWEEN MUSIG MODEL UPDATES 20

>>MUSIG VOLUME FRACTION PARAMETERS

******************* ERROR ****************** THE FOLLOWING KEYWORD HAS NOT BEEN PROCESSED

ITERATIONS BETWEEN MUSIG MODEL UPDATES ********************************************

###>ITERATIONS BETWEEN MUSIG UPDATES HAS NOT

BEEN SET. THE DEFAULT VALUE IS BEING USED.

```````````````````````````````````````` Would someone give me some advice? Thanks a lot.

And where can I fand some articles about the MUSIG model? Thanks advance. Danney