sprayFoam: thetaOuter and thetaInner
 

Dear All

I simulate a full cone spray with an angle of 30 -degree.

In the constant/sprayCloudProperties file, I enter two parameters as follows;
When Iook at the source code, thetaOuter seems as half-cone angle. But from the Lagrangian results, spray seems very narrow angle as if 15-degree full-cone angle.

What is the thetaOut ? half-cone angle? or full-cone angle? :confused:

Hello,

as you found out by checking the source code, the outer angle is the half angle of the full cone (at least for OpenFOAM version 2.1 or later)

Kind regards
Chrisi

I think the angles (inner and outer) are half-cone and are measured from center-line. then, for full-cone sprays always theta inner = 0 and theta outer is half-cone of spray angle.

Hi saeedshayae,

can you tell me the reference of that image?
I'm learning about the injection process and that image is good, I want know to more about it

thanks

It is base on
"Modelling of Gasoline and Ethanol Hollow-Cone Sprays
Using OpenFOAM, Chen Huang and Andrei Lipatnikov,JSAE 20119069
SAE 2011-01-1896" .

thanks!!!!

Cone Spray Angle
 

Dear All,


Can I ask how did you calculate the cone angle which you needed, theoretically ? or it was an experimental result ? Probably this is a bit off topic but still.