CFD Online URL
[Sponsors]
Home > Forums > FLUENT

How to simulate the fan driven by the airflow?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 16, 2008, 04:58
Default How to simulate the fan driven by the airflow?
  #1
Jason
Guest
 
Posts: n/a
Dear All, The problem I get is to use Fluent to simulate the fan's rotation and the fan is driven by the incoming airflow. I want to know the RPM of the fan when it is driven by the airflow at a special speed. Now, the problem lies in that I don't know how to setup the fan and make the fan can be driven by the incoming air flow. An example for this problem is the wind power generation. Is there anyone can give me some suggestion of that. Many thanks! Best regards, Jason
  Reply With Quote

Old   April 16, 2008, 08:55
Default Re: How to simulate the fan driven by the airflow?
  #2
max
Guest
 
Posts: n/a
Sounds like a "6 DOF" problem requiring dynamic meshing. Search this message board and the fluent docs for that. Quite interesting but challenging too.

Good luck

Max
  Reply With Quote

Old   April 17, 2008, 16:56
Default Re: How to simulate the fan driven by the airflow?
  #3
kike
Guest
 
Posts: n/a
I am afraid you can't. Even if you use slidding meshes you will need to know rotation speed before iterate. Fluent ask you for problem's statement. Solutions: (a) simple lab. scale test prior to numerical simulation (b) try to use any chart from fan's manufacturer (c) in case of wind turbine try to obtain an order of magnitude by using WT design strategies; ie. starting from blade and rotor characteristics (chord variation, blades number, caleage angle, etc) find omega.

  Reply With Quote

Reply

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
Need a software to simulate airflow. Dan FLUENT 1 July 28, 2008 00:47
How to model an airflow over a water? Luk CFX 3 January 10, 2008 04:39
Computer chassis airflow Justin CFX 5 May 2, 2007 19:17
Airflow deflector..please help Riham FLUENT 0 October 16, 2003 19:34
2D Airflow Analysis Scott Stammer Main CFD Forum 1 April 13, 2002 09:43


All times are GMT -4. The time now is 10:27.