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

 April 10, 2008, 07:45 UDF growing radius #1 Greg Guest   Posts: n/a Hi, I try to simulate the wave of a blast. So as to do that, I try to make moving a semicircle wall imputing the blast equation. How can I imput this displacment when it is actually an enlargement of the radius of this semicircle? I don't know how I can imput a rate of change of the radius. If you have another idea, each point of this semicircle as to move with the same speed but in a different direction.( along its radius) Thank you very much for your help. Greg

 April 11, 2008, 10:19 Re: UDF growing radius #2 Greg Guest   Posts: n/a Like I have no answetr I will try to simplify my question. By using Define_Geom I want to set a movement depending of time. My equation would look like something like this: (position[0]-a)^2+(postion[1]-b)^2=((dtime-t0)*e(dtime-t0))^2 where a b are coordinate of the center of the circle and the second member of the equation the varying radius. Any help or comment would help me. Greg

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post Christian Main CFD Forum 8 August 5, 2009 18:10 KM CFX 0 December 25, 2007 20:31 wxm Main CFD Forum 0 August 6, 2006 02:33 James Date CFX 2 May 23, 2005 22:30 Bikash FLUENT 0 March 3, 2005 17:33

All times are GMT -4. The time now is 13:07.