Mapping from small size to a bigger size
 

Dear All,

Recently I have an issue on mapping fields. Basically I have two cases of pipe flow but with different radius and length. Say one is with radius of 0.3 and length of 3, the other is of 1 in radius and 10 in length. Is there any way I can map the field from the small pipe to the bigger one? I tried mapFields directly but the result is like in the screenshot attached. What I want is that mapping the value from the small pipe to relative positions in the bigger pipe (i.e., cover the whole domain).

Can anyone give me some advice on that? Thank you very much!

Regards,
Tony