[BopngMa]

Hello,

Currently I am using the SU2 to do some tests. And some configure confused me, so I need your help.

First, for the Reynold number setting, the newest version SU2 gives this:

% Reynolds number (non-dimensional, based on the free-stream values)
REYNOLDS_NUMBER= 6.5E6
%
% Reynolds length (1 m by default)
REYNOLDS_LENGTH= 1.0

and since the equation to get Reynold number is Re=rho*v*L/viscousity, the value of the Reference length “L” in this equation is set by users? For example, I am doing a 3 dimensional computation, the model is the Lockheed Seeb-ALR. I generated two grid of the model, with the model length being 17.68in and 1768mm, and for the first situation, I set the Reynolds_length as 1.0 and set the Reynolds_number to 3.63E5 (which is from 6.42/17.68) and for the second condition I set Reynolds_length to 100, and set the same Reynolds_number. Is it ok?

Actually, in the second situation, I used the reynolds_length as a scale. How will this influence the result?

Thanks

[hlk]

Originally Posted by BopngMa

Hello,

Currently I am using the SU2 to do some tests. And some configure confused me, so I need your help.

First, for the Reynold number setting, the newest version SU2 gives this:

% Reynolds number (non-dimensional, based on the free-stream values)
REYNOLDS_NUMBER= 6.5E6
%
% Reynolds length (1 m by default)
REYNOLDS_LENGTH= 1.0

and since the equation to get Reynold number is Re=rho*v*L/viscousity, the value of the Reference length “L” in this equation is set by users? For example, I am doing a 3 dimensional computation, the model is the Lockheed Seeb-ALR. I generated two grid of the model, with the model length being 17.68in and 1768mm, and for the first situation, I set the Reynolds_length as 1.0 and set the Reynolds_number to 3.63E5 (which is from 6.42/17.68) and for the second condition I set Reynolds_length to 100, and set the same Reynolds_number. Is it ok?

Actually, in the second situation, I used the reynolds_length as a scale. How will this influence the result?

Thanks

Please see:
http://www.cfd-online.com/Forums/su2...enght-su2.html