Reply To: Confused on Boundary conditions

[Sri Harsha Kallakuri]

We will change the pincers to rigid as mentioned. As far as the tubing and the clamp size are concerned, I have designed these based on a real problem I have encountered at my work. We have observed a leakage in one of our Bio-process tubing assemblies. The fluid inside the tubing flows at 35 psi (high pressure for this application). I have primarily identified the cause of the leakage as 

1. Less Hardness of the Hose (silicone tubing) - The high pressure fluid is making the tube bulge and open a gap for fluid to escape
2. Improper selection of oetiker clamp (Bigger size chosen) - The clamp is not properly compressing enough the thickness of the tubing

My intension on this project is to first simulate the crimping of the oetiker clamp (on a hose) and then perform a CFD analysis with 35 psi to see how the fluid is exerting the pressure on the hose and clamp and how the clamp is behaving.

The tube and oetiker size combination I have taken in this project are practically showed no leakage in our testing.

I hope this gives clarity on our intension of doing this study.