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Bharath November 21, 2002 16:36

Reynolds Number
 
Hello

I would like to knw whts the Reynolds Number limit for a free flow such as some distance from exit of an Nozzle ...to find if its a turbulent or Laminar Flow..??I have been modelling with Turbulent models for creating an uniformly distributed spray using VOF Model..but Im not sure ..abt whether I shud choose Laminar model or K-e turbulent Model !!

Your suggestions are greatly appreciated Thanks

Bharath

jit November 22, 2002 10:05

Re: Reynolds Number
 
what is the reynold no. at nozzle?

mahdi saniee nezhad November 24, 2002 01:46

Re: Reynolds Number
 
Dear sir I have a problem with this title. If it's possible for you please send me your received responses. Very thanks for your attention to my request. With the best regards. Mahdi saniee nezhad


Alamgir December 3, 2002 00:12

Re: Reynolds Number
 
Calculate the R no. for both nozzle and inlet. Based on the maximum R no. u should choose the model. If it is below 2000 u could choose Laminar other wise turbulent model. for low range 3000-10000 S-A model is the best as it takes less comuptation time, other wise k-e model.

Just have a look Fluent Manual Ch 10.

Alamgir


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