[CFD-Post] High resolution scheme blend factor

siw · May 24, 2011, 12:55

Hi,

Is it possible to plot the high resolution advection scheme blend factor, beta in the equation given in the User Guide?

I cannot find it in the CFD-Post Variable Selector.

Thanks.

ghorrocks · May 24, 2011, 20:15

Yes, they are the variables like Velocity U.beta.

siw · May 26, 2011, 05:50

Thanks Glenn. Is see there's 4 variables (pressure and velocity components). Plots of them did not give me what I expected though.

Likewise, I cannot see a variable for the turbulence intensity. Does one exist? Or must I make a user defined variable? I see what's needed from http://www.cfd-online.com/Wiki/Turbulence_intensity.

Thanks

ghorrocks · May 26, 2011, 07:38

If you have a turbulence model with turbulence intensity you will have it. No need to define a new variable. Can't remember off the top of my head what its name is, turbulent kinetic energy or something like that I think.

siw · May 26, 2011, 08:20

Thanks again, Glenn.

I used the SST model and have made a contour plot of the turbulent kinetic energy (taken from the variable selector), but I'm thinking to include or replace it with a contour plot of turbulence intensity.

ghorrocks · May 26, 2011, 18:23

Oh, you mean turbulence intensity as a ratio of turbulent energy to bulk flow energy? No, this variable does not exist. It is straight forward to add it as a user variable.

May 24, 2011, 12:55	[CFD-Post] High resolution scheme blend factor	#1
siw Senior Member Stuart Join Date: Jul 2009 Location: Portsmouth, England Posts: 739 Rep Power: 26	Hi, Is it possible to plot the high resolution advection scheme blend factor, beta in the equation given in the User Guide? I cannot find it in the CFD-Post Variable Selector. Thanks.

May 24, 2011, 20:15		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	Yes, they are the variables like Velocity U.beta. Mazze[ITA] likes this.

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May 26, 2011, 05:50		#3
siw Senior Member Stuart Join Date: Jul 2009 Location: Portsmouth, England Posts: 739 Rep Power: 26	Thanks Glenn. Is see there's 4 variables (pressure and velocity components). Plots of them did not give me what I expected though. Likewise, I cannot see a variable for the turbulence intensity. Does one exist? Or must I make a user defined variable? I see what's needed from http://www.cfd-online.com/Wiki/Turbulence_intensity. Thanks

May 26, 2011, 07:38		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	If you have a turbulence model with turbulence intensity you will have it. No need to define a new variable. Can't remember off the top of my head what its name is, turbulent kinetic energy or something like that I think.

May 26, 2011, 08:20		#5
siw Senior Member Stuart Join Date: Jul 2009 Location: Portsmouth, England Posts: 739 Rep Power: 26	Thanks again, Glenn. I used the SST model and have made a contour plot of the turbulent kinetic energy (taken from the variable selector), but I'm thinking to include or replace it with a contour plot of turbulence intensity.

May 26, 2011, 18:23		#6
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	Oh, you mean turbulence intensity as a ratio of turbulent energy to bulk flow energy? No, this variable does not exist. It is straight forward to add it as a user variable.