CFD Online Logo CFD Online URL
Home > Forums > STAR-CCM+

Setting a pipe simulation

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   February 21, 2014, 20:42
Default Setting a pipe simulation
New Member
Join Date: Aug 2009
Posts: 6
Rep Power: 10
spacecraft is on a distinguished road
I want to simulate the behavior of an existing vertical straight pipe. In the inlet (upper hole) thanks to a pump enters water with known inlet pressure (measured experimentally) and inlet volume flow rate. I would like to set the model in the right way to fine the pressure and velocity distribution along the pipe.
I set:

- "velocity inlet" for the inlet hole (this hole is connected to a pump), using the calculated velocity (velocity = inlet volume flow rate / inlet area)
- "pressure outlet" for the outlet hole (this hole is free, open to the room); since I don't know the experimental value for the outlet I supposed 1 bar (like in the room)

Is it the correct way?
Because at the end of simulation I found an inlet pressure of 3.39 bar but experimentally I know that inlet pressure is 2 bar.
There is another way to set boundaries, since I don't know the outlet pressure to use but only the inlet velocity and inlet pressure?
Thanks a lot
spacecraft is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Heat pipe simulation nazanin fazeli Fluent Multiphase 0 February 3, 2014 08:13
determining displacement for added points CFDnewbie147 OpenFOAM Native Meshers: snappyHexMesh and Others 1 October 22, 2013 09:53
Periodic boundary condition - pipe flow -setting up heat transfer Explorer FLUENT 0 December 4, 2012 04:36
FEA Simulation of heat pipe bensonnggl ANSYS 0 September 25, 2010 00:59
FDTD Simulation of flow through tapered pipe Jim Main CFD Forum 3 December 25, 2006 11:56

All times are GMT -4. The time now is 05:59.