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

Pipe Flow Analysis

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 4, 2011, 05:32
Default Pipe Flow Analysis
  #1
New Member
 
Akshayy Garg
Join Date: Aug 2009
Location: delhi, india
Posts: 6
Rep Power: 16
akshayygarg is on a distinguished road
Hi

I am a beginner in FLUENT. I was doing pipe flow analysis and having problems with the solution.

Problem.
Pipe - 5m long, 66.7 mm dia.
Inlet pressure - 60 bar (static).
Outlet pressure - 8 bar (static).
Fluid - air.
T -300 K.
To do flow analysis as well pressure exerted by fluid on walls.

Solution I did was:
I made a 3-D pipe in gambit and loaded it on FLUENT. I used the laminar conditions initially just to get an approximate result. air is considered incompressible. Pressure at inlet kept at 60 bar as well as static at 60 bar. Pressure at outlet kept at 8 bar.

I still do not get results with static pressure varying on wall from 4.7e12 to -2.93e12 which is not possible.

Plz help I am new to this.

Akshayy Garg
akshayygarg is offline   Reply With Quote

Old   March 4, 2011, 07:49
Default
  #2
Member
 
ThanhToan
Join Date: Sep 2010
Posts: 49
Rep Power: 15
trantoan2008 is on a distinguished road
Send a message via Yahoo to trantoan2008 Send a message via Skype™ to trantoan2008
Quote:
Originally Posted by akshayygarg View Post
Hi

I am a beginner in FLUENT. I was doing pipe flow analysis and having problems with the solution.

Problem.
Pipe - 5m long, 66.7 mm dia.
Inlet pressure - 60 bar (static).
Outlet pressure - 8 bar (static).
Fluid - air.
T -300 K.
To do flow analysis as well pressure exerted by fluid on walls.

Solution I did was:
I made a 3-D pipe in gambit and loaded it on FLUENT. I used the laminar conditions initially just to get an approximate result. air is considered incompressible. Pressure at inlet kept at 60 bar as well as static at 60 bar. Pressure at outlet kept at 8 bar.

I still do not get results with static pressure varying on wall from 4.7e12 to -2.93e12 which is not possible.

Plz help I am new to this.

Akshayy Garg
Hi,

I think you need check your unit system which you used for your solution.
Hope help you.

Best regards,
Tran
trantoan2008 is offline   Reply With Quote

Old   March 4, 2011, 07:59
Default
  #3
New Member
 
Akshayy Garg
Join Date: Aug 2009
Location: delhi, india
Posts: 6
Rep Power: 16
akshayygarg is on a distinguished road
I am using i-5 processor, 2 gb ram, win 7 home premium-32 bit
akshayygarg is offline   Reply With Quote

Old   March 4, 2011, 08:57
Default
  #4
Member
 
ThanhToan
Join Date: Sep 2010
Posts: 49
Rep Power: 15
trantoan2008 is on a distinguished road
Send a message via Yahoo to trantoan2008 Send a message via Skype™ to trantoan2008
Quote:
Originally Posted by akshayygarg View Post
I am using i-5 processor, 2 gb ram, win 7 home premium-32 bit
Hi,

Your computer is so good for computation time. However, I mean that you need check unit solution such as SI,...
trantoan2008 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
Turbulence intensity in fully devloped pipe flow - Reference Shocktrain Main CFD Forum 0 October 14, 2010 06:58
Blood flow through pipe kmgraju CFX 1 August 4, 2010 02:36
About Turbulence Intensity (Pipe flow assimilated) gRomK13 Main CFD Forum 1 July 10, 2009 03:11
Domain for Pipe Flow Swarup FLUENT 0 September 28, 2005 23:25
flow in pipe with momentum and energy source Atit Koonsrisuk CFX 3 March 29, 2005 16:58


All times are GMT -4. The time now is 16:04.