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

Cavitation Study of a VCO Nozzle in Ansys CFX...

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 21, 2014, 10:44
Question Cavitation Study of a VCO Nozzle in Ansys CFX...
  #1
New Member
 
deepakr
Join Date: Apr 2014
Posts: 1
Rep Power: 0
deepakr is on a distinguished road
Hi Guys....

I am doing modelling and simulation of of a no k-factor vco nozzle.I have to find Cd of this by varying the needle lift .I have used SST (because k-epsilon and bsl k-epsilon gave error code 1 on solver manager).
My Re value was 9980...

Now I am modelling cavitation for the same.I am using ANSYS CFX 14.5 and Rayleigh-Plesset Model for cavitation modelling....My Cd is reducing from the no cavitation case...It came down from 0.65 to 0.57....I am getting cavitation near the entrance of outlet pipe and at the outlet face...
My question is can you guys please give me a trend of the cavitation behaviour w.r.t needle lift...
or in simple words "what will happen to the cavitation areas and its magnitude as the needle lift is increased"will it increase /decrease???

Waiting for replies

DRN
deepakr is offline   Reply With Quote

Old   May 21, 2014, 18:46
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 16,749
Rep Power: 131
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
How am I meant to know that? I have no idea what your geometry or flow looks like. I don't have telepathy.

Try posting an image of your geometry and the flow conditions and we will see what we can do.
ghorrocks is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Compressible Flow in Ansys CFX bcheruk CFX 15 July 6, 2017 06:30
Parametric Study - Multiple Configurations in ANSYS CFX kskong CFX 1 June 7, 2016 08:22
Calculation of the Governing Equations Mihail CFX 7 September 7, 2014 06:27
I got code 1 error from ANSYS CFX zlor1324 CFX 0 March 11, 2014 19:22
Ansys 13 CFX problem on LInux Opensuse 11.4 serendipity CFX 10 August 7, 2012 03:24


All times are GMT -4. The time now is 07:43.