[LpSingh]

Hello everyone,
I have to simulate the cooling of a pipe by R12. The pipe is heated on its outer surface only in the central part of its length so I have built 3 different pipes and imprinted them together.
After the simulation, the residuals are quite fine, but I am facing some problems with the velocity profile. It tends to increase towards the end of the first pipe, but then immediately it drops without any reason. I have attached the screenshots of the situation.
The velocity is measured along a line that is in the center of the pipe.
Best,
L. Singh