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

multiphase simulation with NOT HOMOGENEOUS model

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 15, 2010, 11:14
Default multiphase simulation with NOT HOMOGENEOUS model
  #1
Member
 
Ciro Cannavacciuolo
Join Date: Mar 2009
Posts: 35
Rep Power: 17
mach000 is on a distinguished road
Hi to everybody,
i'm trying to solve a big problem for me: planing hulls.

Before doing this, I'm trying to simulate simple flowfields in order to set all the parameters: a 2D wedge semi submerged.

In order to avoid to set parameters in wrong way, is someone able to give me some "first" suggestion?

Thank you very much
mach000 is offline   Reply With Quote

Old   March 15, 2010, 14:10
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,697
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
Make sure you try the free surface sharpening options. The default is not necessarily the best.
ghorrocks is offline   Reply With Quote

Old   March 15, 2010, 16:33
Default
  #3
Member
 
Ciro Cannavacciuolo
Join Date: Mar 2009
Posts: 35
Rep Power: 17
mach000 is on a distinguished road
Thank you Ghorrocks for your reply.

I know what you mean.

I have prepared a lot of multiphase simulations using Homogeneous model.

Now I'm trying to use a Not homogeneous one because I think that it is the best for planing hull.

I know that defalut options are not the best. I'm looking for someone that has experience wiht this kind of models that is able to gives me some specific suggestion.

Again, thank you for your reply.
mach000 is offline   Reply With Quote

Old   March 15, 2010, 16:43
Default
  #4
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,697
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
I think you can still use the free surface model in a non-homogenous model. Not sure on that.

Your simulation is quite specialised so you will need to do your own optimisation of parameters. You will be very lucky if anybody else has any experience directly relevant to what you are doing, and even luckier if they are actually correct in the advice they give.
ghorrocks is offline   Reply With Quote

Old   March 16, 2010, 05:19
Default
  #5
Member
 
Ciro Cannavacciuolo
Join Date: Mar 2009
Posts: 35
Rep Power: 17
mach000 is on a distinguished road
probably you are right!

Now I'm working on some different setup...I'll update you about my progresses.

Again thank you
mach000 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
Simulation of a single bubble with a VOF-method Suzzn CFX 21 January 29, 2018 00:58
Multiphase Simulation dungsidietquy FLUENT 4 November 4, 2009 13:46
multiphase model and drag law Yasmail AKARIOUH FLUENT 0 April 29, 2008 07:44
Yplus for Multiphase Simulation Mitch CFX 0 October 31, 2007 04:10
Turbolence model for multiphase flows lu CFX 1 February 7, 2007 16:40


All times are GMT -4. The time now is 09:16.