dynamic mesh udf sample
 

I am new to dynamic meshing. In my model, there is increment of volume during the flow time. I have gone through the user guide and I found that dynamic meshing should be the most appropriate option to my model. However, I do not have any idea in preparing my dynamic mesh UDF for that volume increment. Anyone please provide me the related dynamic mesh UDF sample or your valued advise. Please help. It is urgent.

Thanks a lot.