# 1D Incompressible ,inviscid flow

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

 June 8, 2010, 16:56 1D Incompressible ,inviscid flow #1 Senior Member   Join Date: Jun 2010 Posts: 111 Rep Power: 8 Hi, I'm trying to solve the equation above for a 1D case. the equation also needs to satisfy continuity. I guess I can't just get rid of the second term even though the second term u.delta is the incompressiblity condition (continuity) condition in 1D for incompressible flow. If I do that it would be impossible to dicretize the equation. So I guess I need to leave that term in the equation and continue discretizing but somehow I need to show that the equation satisfies continuty.. how can I do that.. does anyone have any ideas? Thank you in advance . I look forward to your hints asap!

 June 8, 2010, 22:51 #2 New Member   Murni Join Date: Jun 2010 Location: Malaysia Posts: 4 Rep Power: 8 Dear Hoovan, Maybe you can refer to Computational Fluid Dynamics by John D. Anderson.

 June 8, 2010, 22:52 #3 New Member   Murni Join Date: Jun 2010 Location: Malaysia Posts: 4 Rep Power: 8 Dear Hooman, Maybe you can refer to Computational Fluid Dynamics by John D. Anderson. Hope this help.

 October 5, 2014, 01:25 #4 New Member   Shawn Join Date: Mar 2012 Posts: 19 Rep Power: 6 I think you don't know what you are going to do. You should have even a little math knowledge to know, if a problem can be solved or not with the given condition. 1) You should know what boundary condition you are using. And Is the problem a hyperbolic one? You should find it out yourself 2) Second, incompressible 1D unsteady flow? OK. Then it turns out the du/dx=0. Then u=u(t). The u is uniform in space. 3) Third, somehow, you need to show that equation satisfies continue relation. God. Can you tell me what is the meaning of "that equation satisfies continuty"???? I suggest you develop a physics background first. Not try to show off in peers for how you can do with computers. Remember CFD is not computer science. Best wishes, Shawn

 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 Neil Main CFD Forum 3 October 24, 2006 08:11 diaw Main CFD Forum 104 February 16, 2006 06:44 khaiching Main CFD Forum 6 October 15, 2005 02:58 John. Main CFD Forum 1 December 15, 2004 12:29 M. Gerritsen Main CFD Forum 4 January 10, 1999 10:53

All times are GMT -4. The time now is 03:32.