CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   CFX (http://www.cfd-online.com/Forums/cfx/)
-   -   Pressure and velocity fluctuations (http://www.cfd-online.com/Forums/cfx/20381-pressure-velocity-fluctuations.html)

Jeff May 23, 2004 01:08

Pressure and velocity fluctuations
 
Anyone know if it's possible to convert the turbulence quantities (k/eps or reynolds stresses) to a frequency distribution of pressures and velocities? That is, derive a PDF for pressure/velocity over a fluctuation frequency range?

Jeff

Glenn Horrocks May 23, 2004 18:45

Re: Pressure and velocity fluctuations
 
Hi Jeff,

I'm no turbulence guru, but to my knowledge both of these turbulence models can only give you elementary information about the turbulence spectrum, such as the turbulence length and time scales. The kolmogorov time and length scales can also be worked out. That's about all you can get out of it.

Regards, Glenn


All times are GMT -4. The time now is 11:16.