CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Pressure Driven Supersonic Flow in Converging-Diverging Nozzle

Register Blogs Community New Posts Updated Threads Search

Like Tree4Likes
  • 2 Post By jaason
  • 2 Post By cdm

 
 
LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
Old   August 28, 2019, 01:37
Default CFD in Pelton turbine nozzle
  #8
New Member
 
Bishal Pandey
Join Date: Aug 2019
Posts: 1
Rep Power: 0
Bishal Pandey is on a distinguished road
I am having a problem keeping the total head constant. I am simulating a nozzle used in a Pelton turbine at different nozzle position. it works if I use total mass flow inlet and static pressure at the outlet. but when I move to total pressure inlet, I get "floating point error", I have tried refining the mesh also but it does not help. Have anyone has any idea about such a problem? what might be the problem?
Bishal Pandey is offline   Reply With Quote

 

Tags
converging-diverging, nozzle, pressure driven, supersonic


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
velocity and pressure driven flow in openfoam jr33 OpenFOAM Running, Solving & CFD 1 August 7, 2013 11:00
Supersonic nozzle exit conditions Betty Main CFD Forum 13 May 24, 2012 00:26
UDF for transient pressure inlet, mass flow check at nozzle exit and volumetric heat kokoory FLUENT 0 August 17, 2011 02:07
Urgent: How to model a stationary sphere in a pressure driven flow using Ansys CFX? farhan OpenFOAM Running, Solving & CFD 1 April 14, 2009 14:34
flow simulation across a small fan jane luo Main CFD Forum 15 April 12, 2004 17:49


All times are GMT -4. The time now is 06:49.