deattached eddy simulation

zxcvasdf · October 2, 2016, 13:30

Hi
is there anybody who could help me to know what is DES method applications?
also for an airfoil with high angle and seperation could it be used?
Thanks

FMDenaro · October 2, 2016, 13:44

I don't work using DES, but it was created to be somehow between RANS and LES for some applications with separated flow conditions.
You can give a look to this review:
http://www.annualreviews.org/doi/abs....010908.165130

zxcvasdf · October 2, 2016, 15:02

Thanks for your answer
but could you please tell that is it ok to use it for 2d problems?

FMDenaro · October 2, 2016, 15:12

Quote:

Originally Posted by zxcvasdf

Thanks for your answer
but could you please tell that is it ok to use it for 2d problems?

as you can see, the 2D problems was proposed at the end of the years '90 only as a preliminary exercise https://www.researchgate.net/profile...8919000000.pdf

The mix with a LES field requires the 3D assumption.

vikrantcfd · October 25, 2016, 02:06

Hello there,

I am doing free jet simulation using DES model. I am using this model for the first time. Can anyone please tell me the Y+ value guidelines for the simulation?

October 2, 2016, 13:30	deattached eddy simulation	#1
zxcvasdf Member zxc Join Date: Mar 2015 Posts: 35 Rep Power: 11	Hi is there anybody who could help me to know what is DES method applications? also for an airfoil with high angle and seperation could it be used? Thanks

October 2, 2016, 13:44		#2
FMDenaro Senior Member Filippo Maria Denaro Join Date: Jul 2010 Posts: 6,768 Rep Power: 71	I don't work using DES, but it was created to be somehow between RANS and LES for some applications with separated flow conditions. You can give a look to this review: http://www.annualreviews.org/doi/abs....010908.165130 zxcvasdf likes this.

October 25, 2016, 02:06	Y+ value for DES model	#5
vikrantcfd New Member vikrant Join Date: Jun 2014 Posts: 4 Rep Power: 11	Hello there, I am doing free jet simulation using DES model. I am using this model for the first time. Can anyone please tell me the Y+ value guidelines for the simulation?

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October 2, 2016, 15:02		#3
zxcvasdf Member zxc Join Date: Mar 2015 Posts: 35 Rep Power: 11	Thanks for your answer but could you please tell that is it ok to use it for 2d problems?