CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

Need advice modelling a closed system - very confused.

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 21, 2016, 16:25
Default Need advice modelling a closed system - very confused.
  #1
New Member
 
Join Date: Nov 2016
Posts: 1
Rep Power: 0
cfdlearner is on a distinguished road
I've been working on a closed system problem and I'm having trouble figuring out what to do. My system is as follows:

A pump circulates coolant throughout the system. The coolant flows through a pipe inlet into two outlets. Each outlet connects to a component for the purposes of cooling it. The coolant goes through the component and into another set of pipes (this time with only one outlet), and out into atmospheric conditions.

My boundary conditions: the pump's maximum volumetric flow rate, and the atmospheric conditions in the outlet of the second set of pipes.

My approach:

Start with the second set of pipes. I would use 3 separate flow rates at the inlets (for the purposes of creating a function of the static inlet press vs. flow rate), and put the pressure outlet at 0 gage. Once I know what the static inlet press. vs. flow rate function looks like, I would put that function at the pressure outlet of the components (assume identical components). I would run the component at 3 different flow rates to get a function of the component static inlet press. vs. flow rate given the outlet condition from the pipes we calculated earlier.

Then I would run the first set of pipes using the pump's max. flow rate and the pressure outlets (2 of them, one for each component) would contain the pressure function of the components. Once this simulation is done, I would have modelled the entire system working backwards from the very last point in the loop to the beginning.

This is how I've been modelling this. Is this correct or is there a better way?

Thanks in advance.
cfdlearner is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Boundary conditions for loop (closed system) SSAA FLUENT 0 June 27, 2013 12:54
Advice on vertical axis turbine modelling bramdiff CFX 4 September 28, 2010 05:27
Advice on vertical axis turbine modelling bramdiff FLUENT 0 September 24, 2010 10:12
Advice on multi-phase flow modelling Martin Main CFD Forum 3 October 14, 2008 06:16
advice needed in solving linear system yf yap Main CFD Forum 5 February 5, 2001 01:21


All times are GMT -4. The time now is 03:41.