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Showing results 1 to 7 of 7
Search took 0.00 seconds. Search: Posts Made By: ayhan515
Forum: OpenFOAM Running, Solving & CFD September 7, 2015, 07:10
Replies: 16
Views: 3,716
Posted By ayhan515
Arrow deltaT 1e-5;>>>>>>>>>>I changed from...

deltaT 1e-5;>>>>>>>>>>I changed from 1e-5 to 1e-25deltaT is too small.

Courant Number mean: 1388.37 max: 1.04297e+10 is unacceptable I think that problem is related your mesh.
I...
Forum: OpenFOAM Running, Solving & CFD August 31, 2015, 18:41
Replies: 16
Views: 3,716
Posted By ayhan515
Arrow For HCCI Just use kivaTest and engineFoam is...

For HCCI
Just use kivaTest and engineFoam is not sufficient because ignition starts with your control at that case.
HCCI ignition starts with high temperature like diesel engines.
and need to...
Forum: OpenFOAM Running, Solving & CFD August 31, 2015, 09:33
Replies: 16
Views: 3,716
Posted By ayhan515
Arrow Dear kaveh19 i am not an expert and i am also...

Dear kaveh19
i am not an expert and i am also asking questions to professionals to learn something.

if you want to use gasoline you can use isooctane there is no need to change fuel for kivaTest...
Forum: OpenFOAM Running, Solving & CFD August 28, 2015, 16:42
Replies: 16
Views: 3,716
Posted By ayhan515
Arrow Dear kaveh19 my suggestion is decreasing of...

Dear kaveh19
my suggestion is decreasing of deltaT

for example

startTime -20;

stopAt endTime;

endTime 30;
Forum: OpenFOAM Running, Solving & CFD August 26, 2015, 08:27
Replies: 16
Views: 3,716
Posted By ayhan515
Arrow Dear kaveh19, 1.1- create a geometry ...

Dear kaveh19,

1.1- create a geometry

just draw single cylinder (not 2 parts)
(for your CR=20 case) diameter: 76 mm height:69,473 mm

1.2-check z direction is height otherwise rotate your...
Forum: OpenFOAM Running, Solving & CFD August 21, 2015, 17:34
Replies: 16
Views: 3,716
Posted By ayhan515
Arrow hi kaveh19, i suggest you should create new...

hi kaveh19,
i suggest you should create new geometry and mesh for different CR. then check your mesh and engine compression ratio with checkMesh & engineCompRatio
...
Forum: OpenFOAM Running, Solving & CFD March 4, 2010, 05:51
Replies: 16
Views: 3,716
Posted By ayhan515
kivaTest tutorial-fault on temperature (engineFoam)

Hi all!

I'm an openfoam beginner. I used kivaTest tutorial (OpenFoam-1,5-dev on Slax). without any modification.

in combustionProperties file "ignite yes;"
Pressure is not increase...
Showing results 1 to 7 of 7

 
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