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

2 phase flow in a flexible microchannel

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 3, 2014, 06:19
Default 2 phase flow in a flexible microchannel
  #1
New Member
 
Rahul Halder
Join Date: Jul 2014
Posts: 1
Rep Power: 0
rahulju is on a distinguished road
I am working in ANSYS 14 , fluid solid interaction for simulating a droplet flowing through a micro channel.A small part of the channel is flexible.Its dimension is varying from 25*25 um2 to 10 *25 um2.
Time step = 2e10(-6).
velocity = 0.01 m/s
phase = water droplet in mineral oil.
under relaxation parameter used in system coupling:0.2 for both data transfer
for meshing I am using automatic meshing option available in work bench,ANSYS.
The problem I am facing :
though my fluid part in fluent and structural part in transient structural is getting converged.But in system coupling it is not reaching the convergence criteria 0.01.It is oscillating around 0.1 as the droplet getting closer to the constriction and sometimes even before that.
rahulju is offline   Reply With Quote

Old   October 7, 2014, 07:41
Default
  #2
New Member
 
madhu
Join Date: Oct 2014
Posts: 4
Rep Power: 3
TechAnalyst2012 is on a distinguished road
increase the number of elements . or there might be problem with solution methods in fluent
TechAnalyst2012 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
Two phase flow solid-fluid in river beds Samchak Main CFD Forum 0 May 23, 2013 08:44
Divergence after change in mass flow rate in two phase flow meetsunilkale FLUENT 1 March 25, 2013 04:03
two phase flow + ice phase and breaking soeren87 OpenFOAM Running, Solving & CFD 0 September 19, 2010 10:20
Two phase Flow instability shaoping Main CFD Forum 1 September 8, 2003 13:25
Two-phase/ Single phase mix flow Reza Main CFD Forum 1 August 6, 2003 06:36


All times are GMT -4. The time now is 21:13.