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

Machine configuration for multiphase flow

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 15, 2015, 13:58
Default Machine configuration for multiphase flow
  #1
Member
 
Kamal Bisht
Join Date: Jun 2015
Posts: 35
Rep Power: 3
Bisht is on a distinguished road
I have a student version of Star-ccm+ for my thesis work in a company but with it I can use only 6 cores.
My task is to simulate Multiphase flow (Fuel tank refueling) with around 3.5M cells, time step is e-5 for the total physical time of around 2s.
My computer configuration is like i7, 32 gb Ram, 2.85 ghz processor and 8 cores(though can use only 6)
Is this configuration enough for my simulation?
Someone told me that it will take 2 weeks for this kind of simulation which is too much considering the thesis period.
The company has the industry license for the Star-ccm+ but at the moment all are occupied so they arranged student license for me
__________________
Regards,

Kamal
Bisht is offline   Reply With Quote

Old   July 15, 2015, 20:35
Default
  #2
Senior Member
 
Michael Prinkey
Join Date: Mar 2009
Location: Pittsburgh PA
Posts: 286
Rep Power: 15
mprinkey will become famous soon enough
There are too many physical and code-specific variables to answer your question without knowing a lot more information. If you have the simulation set up, run it for 100 timesteps (to get startup overhead out of the way) and then time the next 100. The second 100-step measure should give you rough idea of sec/timestep and you can try to extrapolate from there. Multiphase problems can be particularly devilish to converge sometimes due to real physical behavior (bubbles bursting, etc.) so that may make your extrapolation a bit understated, but it should give you a hint if it is going to take a day, a week, or a month.
mprinkey 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
mass flow inlet and pressure outlet with target mass flow rate Zigainer FLUENT 10 January 5, 2013 22:51
Flow meter Design CD adapco Group Marketing CD-adapco 3 June 21, 2011 08:33
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
potential flow vs. Euler flow curious ... Main CFD Forum 23 July 21, 2006 07:40
Configuration for Client Machine in Linux Raymond CFX 0 July 22, 2004 03:50


All times are GMT -4. The time now is 09:10.