CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   OpenFOAM Running, Solving & CFD (http://www.cfd-online.com/Forums/openfoam-solving/)
-   -   parcels too small? (http://www.cfd-online.com/Forums/openfoam-solving/114890-parcels-too-small.html)

Smed March 19, 2013 12:39

parcels too small?
 
1 Attachment(s)
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.
Quote:

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.

ris March 19, 2013 13:32

Hello,

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

regards,

ris.


All times are GMT -4. The time now is 05:17.