CAVITATION(what turbulence model is better)

August 2, 2003, 03:52

Hi; What turbulence model is better for cavitation modelling? Dose has anyone an experience with K-w model?

August 3, 2003, 10:29

hi, roozbeh

I have a little experience on cavitation simulation. One of my labmates did these by using fluent and i by StarCD. The results are similar and however, the size of cavotatopm is much smaller than the one observed in the experiments.

August 4, 2003, 08:37

Hi!

I'm back from vacation

So: - turbulence model...usually k-epsilon model with some modifications is used (the plain one does not predict reentrant jet and consequently cavitation cloud separation). - bubble number density....as i said before, nobady really knows that one (It seems that the number 10^7 to 10^9 and bubble radius 3*10^-5 should be ok) - literature...just put cavitation and modellind in google.....you'll get many good papers out...

REGARDS

mateus

August 9, 2003, 10:04

Hi; I am very happy to see your response. I have many problems and I want to ask you about them. Can I connect you by e-mail(or in this site if you want)? Can you check your mail box please!

August 9, 2003, 12:59

Hi!

No problem - contact me by e-mail....Hope I will be able to help you....

MATEUS

August 12, 2003, 03:18

Hi!

As I'm also simulating cavitation I would be interested in knowing what turbulence model to use etc. Please share your knowledge!

/Fred

August 2, 2003, 03:52	CAVITATION(what turbulence model is better)	#1
ROOZBEH Guest Posts: n/a	Hi; What turbulence model is better for cavitation modelling? Dose has anyone an experience with K-w model?

August 3, 2003, 10:29	Re: CAVITATION(what turbulence model is better)	#2
ccc Guest Posts: n/a	hi, roozbeh I have a little experience on cavitation simulation. One of my labmates did these by using fluent and i by StarCD. The results are similar and however, the size of cavotatopm is much smaller than the one observed in the experiments.

August 4, 2003, 08:37	Re: CAVITATION(what turbulence model is better)	#3
mateus Guest Posts: n/a	Hi! I'm back from vacation So: - turbulence model...usually k-epsilon model with some modifications is used (the plain one does not predict reentrant jet and consequently cavitation cloud separation). - bubble number density....as i said before, nobady really knows that one (It seems that the number 10^7 to 10^9 and bubble radius 3*10^-5 should be ok) - literature...just put cavitation and modellind in google.....you'll get many good papers out... REGARDS mateus

August 9, 2003, 10:04	Re: CAVITATION(what turbulence model is better)	#4
ROOZBEH Guest Posts: n/a	Hi; I am very happy to see your response. I have many problems and I want to ask you about them. Can I connect you by e-mail(or in this site if you want)? Can you check your mail box please!

August 9, 2003, 12:59	Re: CAVITATION(what turbulence model is better)	#5
mateus Guest Posts: n/a	Hi! No problem - contact me by e-mail....Hope I will be able to help you.... MATEUS

August 12, 2003, 03:18	Re: CAVITATION(what turbulence model is better)	#6
fredrikw Guest Posts: n/a	Hi! As I'm also simulating cavitation I would be interested in knowing what turbulence model to use etc. Please share your knowledge! /Fred

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