FLUENT 2D

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

 September 14, 2000, 02:50 FLUENT 2D #1 PAI Guest   Posts: n/a I am modelling a plane slider bearing in 2d using GAMBIT. The solution is done using FLUENT 5 solver. The problem I encounter is - The pressure profile on the stationary wall gives me a negative value at the inlet, while actually it sholud be positive. Rest of the profile builds to a positive value after the initial dip. I know that FLUENT solves the Bernoulli equation at the inlet. But that's the problem here. I have tried using a finer grid/grid adaptation etc. but the results are the same. Is there a way of getting over this problem? PAI

 September 16, 2000, 00:26 Re: FLUENT 2D #2 John C. Chien Guest   Posts: n/a (1). If the solution is mesh independent, and the pressure is negative, then you should try some other codes, because negative pressure has no meaning at all. (2). By the way, before you try other codes, make sure that you are reading the right pressure. I mean, these codes don't solve the real pressure in the solution algorithm sometimes.

 September 16, 2000, 09:42 Re: FLUENT 2D #3 Maurizio Barbato Guest   Posts: n/a Dear John, the negative pressure should be the value of the so called gauge pressure, i.e. the value obtained substracting the mean pressure (assigned as problem parameter) to the real pressure value. Therefore a negative gauge pressure means a pressure under the mean value assigned. Cheers Maurizio

 September 17, 2000, 02:19 Re: FLUENT 2D #4 John C. Chien Guest   Posts: n/a (1). I hope you are right, otherwise, there is a long way from the negative pressure to the positive pressure.

 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 knight Fluent UDF and Scheme Programming 12 March 5, 2016 02:26 Volker Pawlik FLUENT 7 May 22, 2014 22:30 Steven Fluent UDF and Scheme Programming 4 September 20, 2013 16:30 renyun0511 OpenFOAM Running, Solving & CFD 8 July 6, 2010 06:24 Lourival FLUENT 3 January 16, 2008 17:48

All times are GMT -4. The time now is 00:53.