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

2d rotational wall and the velocity magnitude in top??!!

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 2, 2013, 03:50
Unhappy 2d rotational wall and the velocity magnitude in top??!!
  #1
New Member
 
Reza
Join Date: Sep 2010
Posts: 9
Rep Power: 6
CFD_LES is on a distinguished road
Suppose that we have an edge as a blade as a rotational wall (2d problem), it rotates about its center.
Radius of this blade= 10 m
Rotational speed= 1 rad/ s
I used moving reference frame, and I set the speed of rotational wall 0 (relative).
Originally, the velocity magnitude in the top of the blade has to be 10 m/s. but I get it 7.8 m/s
In fact the wall don't obey from:
V=R.Omega
also velocity magnitude in the axis is not zero m/s.
What's the problem??? What's your idea??
CFD_LES is offline   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



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