turbulence length scale?

Ms.Sheyda · February 2, 2013, 18:26

Hello,

I am using a non-commercial LES code and need to calculate free-stream turbulence length scale. I know the theory (i.e. the spacial correlation concept) but I need some hints on how to implement and output the data for length scale calculation. Anyone could help please?

FMDenaro · February 2, 2013, 19:06

Quote:

Originally Posted by Ms.Sheyda

Hello,

I am using a non-commercial LES code and need to calculate free-stream turbulence length scale. I know the theory (i.e. the spacial correlation concept) but I need some hints on how to implement and output the data for length scale calculation. Anyone could help please?

Hi,
in turbulence there are more than only one characteristic scale ... what do you want to know, Kolmogorov, Taylor, integral scale?

Ms.Sheyda · February 3, 2013, 15:04

thanks, for free-stream turbulence I think we are concerned with integral scale, I would also appreciate any hints on other scales though.

FMDenaro · February 3, 2013, 15:08

Quote:

Originally Posted by Ms.Sheyda

thanks, for free-stream turbulence I think we are concerned with integral scale, I would also appreciate any hints on other scales though.

I suggest a reading of such topics in the book of Pope

February 2, 2013, 18:26	turbulence length scale?	#1
Ms.Sheyda New Member Sheyda Join Date: Oct 2012 Posts: 13 Rep Power: 14	Hello, I am using a non-commercial LES code and need to calculate free-stream turbulence length scale. I know the theory (i.e. the spacial correlation concept) but I need some hints on how to implement and output the data for length scale calculation. Anyone could help please? __________________ _ Someday we'll all look back at this and laugh _

February 3, 2013, 15:04		#3
Ms.Sheyda New Member Sheyda Join Date: Oct 2012 Posts: 13 Rep Power: 14	thanks, for free-stream turbulence I think we are concerned with integral scale, I would also appreciate any hints on other scales though. __________________ _ Someday we'll all look back at this and laugh _

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