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

Inlet problem for turbulent flow in cavity

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 21, 2016, 06:54
Default Inlet problem for turbulent flow in cavity
  #1
New Member
 
Sebastian Arpke
Join Date: Jan 2016
Posts: 1
Rep Power: 0
Sebastian A is on a distinguished road
Hi all,

I am modelling a steady state case for a cavity between two rotating turbine disks. I am using the SST k-w-model and the pressure based solver. There are multiple mass-flow inlets into the cavity and four outlets out of the cavity. All of the outlets are pressure outlets from which one is specified with a target mass flow rate. After running the case for a while I switched two of the remaining pressure outlets to target mass flow rates too. I did this one after the other to let the system stabilize for a while. Now I have the problem that the two biggest inlets (equal in mass flow) show more than double the inlet mass flow to what I specified and according to this the pressure outlet has double the oulet as well. I have no clue what might be causing the problem. The problem occures more or less from the beginning of the simulation.

Thanks for your help!
Sebastian A is offline   Reply With Quote

Reply


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Two Mass flow inlet bc convergence problem nabidinhomessi Main CFD Forum 5 December 14, 2015 08:11
Flow not moving - Supersonic/Initial Pressure problem? shankara.2 FLUENT 0 June 9, 2009 21:49
steady RANS for flow problem with unsteady inlet? kat Main CFD Forum 0 February 16, 2009 11:24
Problem on boundry of two phase flow youngan CFX 0 June 30, 2003 03:32
Mass Flow Inlet Pravir Kumar Rai FLUENT 0 February 17, 2003 20:23


All times are GMT -4. The time now is 06:28.