CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Non-nominal conditions in a radial turbine

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

LinkBack Thread Tools Display Modes
Old   December 29, 2010, 09:04
Default Non-nominal conditions in a radial turbine
New Member
Pedro Nunes
Join Date: Nov 2010
Posts: 3
Rep Power: 6
Petro is on a distinguished road
Hello there!

I'm simulating a radial turbine.

For nominal conditions (no angle of incidence) the calculations perform well.

When i switch to non-nominal conditions (with a bit of incidence), the results are unrealistic (the efficiency is higher than for the ideal case). I also have to decrease the under-relaxation factors to obtain convergence.
Should I use a unsteady simulation to predict vortex shedding?
Petro is offline   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
Direction of Rotation of Radial Turbine ghoshi1983 CFX 8 June 19, 2012 10:16
Radial and Tangential Velocity boundary conditions N. A. OpenFOAM 4 September 2, 2011 07:21
Axial Thrust in a Radial Turbine Amit Roghs CFX 3 May 31, 2010 16:47
radial turbine flow analysis. ME Main CFD Forum 0 July 1, 2007 09:39
Simulation of Pelton Turbine: boundary conditions? massimo CFX 0 September 26, 2006 03:56

All times are GMT -4. The time now is 17:07.