CFD Online Logo CFD Online URL
Home > Forums > OpenFOAM Running, Solving & CFD

parcels too small?

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

LinkBack Thread Tools Display Modes
Old   March 19, 2013, 12:39
Question parcels too small?
Join Date: Jun 2011
Posts: 32
Rep Power: 6
Smed is on a distinguished road
I'm using the sprayFoam solver in OF 2.1.1 to inject liquid water in a small steam space. If I set the parcel diameter at 0.001 m, the solution converges without problems. If I start to decrease the diameter (10^-6 or less), I begin to get warnings and my results become junk.
attempt to use janafThermo<EquationOfState> out of temperature range 200 -> 5000; T = 11986.2
Can anyone tell me why this happens? Is there a minimum limit on the parcel size? I've attached an example that runs into this problem.
Attached Files
File Type: gz spraySmallParcels.tar.gz (45.6 KB, 1 views)
Smed is offline   Reply With Quote

Old   March 19, 2013, 13:32
Join Date: Oct 2012
Posts: 35
Rep Power: 5
ris is on a distinguished road

You might have to edit some of the constant properties in the sprayCloudProperties file namely:


ris 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
.STL: non-closed manifold surface giulio.topazio OpenFOAM Native Meshers: snappyHexMesh and Others 24 March 3, 2015 05:41
why did Time step is too small in stiffbs? satum FLUENT 1 December 10, 2012 10:15
Simulating small features on large models siw CFX 1 February 16, 2012 18:10
Small influence of convection in PISO if Courant number is small sebi OpenFOAM 0 February 22, 2011 15:55
what happens if y+ is too large or too small Bo Jensen CD-adapco 12 February 20, 2003 00:31

All times are GMT -4. The time now is 10:14.