CFD Online Logo CFD Online URL
Home > Forums > STAR-CCM+

How much memory

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

LinkBack Thread Tools Display Modes
Old   March 22, 2011, 09:12
Default How much memory
New Member
Jeff Cullina
Join Date: Mar 2011
Posts: 1
Rep Power: 0
jeffcullina is on a distinguished road
I have 1,800,359 cells in my project, and 137 GB free space on my computer. My computer does not have enough memory. I know there options for the mesh, solver, turbulence, but is there of general estimate of the memory required to a some number of cells. In particular, what do I need to run with 1,800,000 cells.
jeffcullina is offline   Reply With Quote

Old   March 22, 2011, 09:22
Senior Member
Join Date: Oct 2009
Location: Germany
Posts: 637
Rep Power: 15
abdul099 is on a distinguished road
That's dependend on the physics models. In general, expect one million cells to need something between 0.5 and 1GB of RAM for an incompressible single phase flow with a two-equation turbulence model. (Trimmed cells more likely in the region of 0.5GB, polyhedral cells more in the region of 1GB)
But of course, when you activate additional physics models like multiphase-flow, mesh morphing, passive scalars, heat transfer or whatever, the amount of memory needed will increase.
And keep in mind, your machine will also need memory for the system itself, for the java virtual machine (for your GUI) etc...

abdul099 is offline   Reply With Quote


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
How to optimize the memory usage when using FEM vasilis Main CFD Forum 11 August 24, 2009 23:57
Memory error? Young CFX 3 September 30, 2008 11:33
Memory Problems David Baker Siemens 5 March 1, 2007 22:04
CFX CPU time & real time Nick Strantzias CFX 8 July 23, 2006 17:50
Run-Time memory conifguration Error Graeme CFX 1 February 21, 2006 00:04

All times are GMT -4. The time now is 23:20.