CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

inlet condition in preconditioning method

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

LinkBack Thread Tools Display Modes
Old   January 30, 2006, 14:35
Default inlet condition in preconditioning method
Posts: n/a
hi all:

My code is development to solve the compressible flow. I used Weiss-Smith version of the preconditioning matrix to slove the low speed flow and add dual time stepping in my code. Besides,I also used LES to deal the viscous terms.

In inlet condition I set a uniform flow in the inlet at the channel. But the result is not reasonable. The speed in grid front of the inlet is too slow. For example,I set the inlet 10m/s.The speed front of the inlet is only 5m/s. Besides, the speed is also appear "shock".

channel ------------------------------------------------ inlet(10m/s)-->5m/s-->6m/s oulet ------------------------------------------------

Can give me some idea about my problem?

  Reply With Quote


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
VOF Inlet condition Rizwan FLUENT 14 April 30, 2017 07:35
Problem with assigned inlet velocity profile as a boundary condition Ozgur_ FLUENT 5 August 25, 2015 04:58
How to use a solution as an inlet boundary condition in another problem in fluent geryes FLUENT 0 February 25, 2010 17:32
inlet and outlet boundary condition for turbomachinery solution siamak1424 OpenFOAM 2 August 15, 2009 11:14
Question about pressure inlet boundary condition. Alina FLUENT 1 November 30, 2007 08:39

All times are GMT -4. The time now is 21:08.