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

dynamic mesh or dynamic grid adaptation??

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 5, 2013, 14:27
Default dynamic mesh or dynamic grid adaptation??
  #1
Member
 
Indrajit
Join Date: Nov 2012
Posts: 33
Rep Power: 4
IndrajitW is on a distinguished road
Hi,
I am trying to simulate drop deformation and I am thinking of using dynamic mesh for the interface which would be finer in the interface region and coarser elsewhere. Would dynamic grid adaptation work instead???? Or only dynamic mesh is the solution??
Please help.
Regards,
Indrajit
IndrajitW is offline   Reply With Quote

Old   April 6, 2013, 09:03
Default
  #2
Senior Member
 
SSL
Join Date: Oct 2012
Posts: 227
Rep Power: 5
msaeedsadeghi is on a distinguished road
There is no need of dynamic mesh.
You should use multiphase flow, specially VOF model. I have done that before.
msaeedsadeghi is offline   Reply With Quote

Old   April 7, 2013, 04:25
Default
  #3
Member
 
Indrajit
Join Date: Nov 2012
Posts: 33
Rep Power: 4
IndrajitW is on a distinguished road
Hi Saeed,
Thank you so much for your reply.Actually the problem is thus:
I am using the VOF model currently but having finer mesh throughout the domain is increasing my computational points which in turn is making the simulation very expensive. Hence I am thinking of using a fine mesh only along the interface and coarse elsewhere. But since the interface is deforming I guess my fine mesh should follow the interface and hence dynamic mesh.
However I also came across the dynamic grid adaptation in fluent. I guess if I adapt my grid only in interface region and it is adapted as the flow proceeds would that be good enough???
Regards,
Indrajit
IndrajitW is offline   Reply With Quote

Old   May 23, 2013, 03:38
Default Similar problem
  #4
Member
 
sajeesh
Join Date: Feb 2013
Posts: 52
Rep Power: 4
sajeesh is on a distinguished road
Hello sir

I have a micro channel of 50 micro x 50 micro x 1000 micrometer length.I want to trace the path of the water droplet inside this channel .Continous phase is oil. and i am in need of the velocity of the droplet at different time upto steady state condition when it is driven by the continous fluid with a flow rate of 50 microlitre /min by the drag force . how we create two domains in Ansys DM.


Thanking You

sajeesh
sajeesh is offline   Reply With Quote

Reply

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
dynamic mesh for drop interface IndrajitW FLUENT 0 March 30, 2013 09:03
dynamic mesh refinement and rhoCentralFoam ChrisA OpenFOAM Running, Solving & CFD 1 March 21, 2013 09:00
pls help. mesh collapsed with dynamic mesh. wlt_1985 FLUENT 1 July 28, 2011 01:53
Some questions about mesh updating in dynamic mesh technique lzgwhy Main CFD Forum 0 June 14, 2009 08:01
How to control Minximum mesh space? hung FLUENT 7 April 18, 2005 09:38


All times are GMT -4. The time now is 18:23.