Spray injection and depth of penetration

sheintz · March 25, 2010, 06:41

Hi everybody

,
I'm trying to simulate a injection of diesel-fuel in a chamber.
I have a problem with the comparison with the experimental files. In my StarCD file I have a fall of the depth of penetration (lenght of injection : !ms). You can see of this image.
http://img440.imageshack.us/img440/8...nspritzung.jpg
Whats the reason of this fall ? Is it my model ? (Atomization model : Huh because I want to see the cone angle of my spray, Droplet Breakup : Reitz, Collision Model : Standard, with Gravity).
In my work I would like to see the depth of penetration of my spray in the chamber and the evolution of the cone angle.
Thank you for your answers
Best Regards

sheintz · March 30, 2010, 04:09

Hi,
has someone an answer ?
I have another problem : I have always the same results for every injectors (the pressure, the diameter, the flows ... are different). What's my problem ?

March 25, 2010, 06:41	Spray injection and depth of penetration	#1
sheintz Member Heintz Simon Join Date: Sep 2009 Location: Germany Posts: 36 Rep Power: 17	Hi everybody , I'm trying to simulate a injection of diesel-fuel in a chamber. I have a problem with the comparison with the experimental files. In my StarCD file I have a fall of the depth of penetration (lenght of injection : !ms). You can see of this image. http://img440.imageshack.us/img440/8...nspritzung.jpg Whats the reason of this fall ? Is it my model ? (Atomization model : Huh because I want to see the cone angle of my spray, Droplet Breakup : Reitz, Collision Model : Standard, with Gravity). In my work I would like to see the depth of penetration of my spray in the chamber and the evolution of the cone angle. Thank you for your answers Best Regards

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March 30, 2010, 04:09		#2
sheintz Member Heintz Simon Join Date: Sep 2009 Location: Germany Posts: 36 Rep Power: 17	Hi, has someone an answer ? I have another problem : I have always the same results for every injectors (the pressure, the diameter, the flows ... are different). What's my problem ?