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-   -   URANS / RANS??? (http://www.cfd-online.com/Forums/main/8951-urans-rans.html)

FELIPE April 1, 2005 21:10

URANS / RANS???
 
I USE THE RANS (K-E) METODOLOGY FOR THE PROBLEM OF STADY TURBULENT NATURAL CONVECTION IN A RECTANGULAR CAVITY, THE CONSERVATION EQUATIONS (CONTINUITY, MOMENT, ENERGY, KINETIC ENERGY AND THE DISSIPATION RATE) WAS DESCRETIZED WHIT THE TRANSIENT TERM, I USE THE FALSE TRANSIENT FOR STEADY RESULT.

MY QUESTIONS IS? WHAT IS THE DIFFERENCES FOR TIME AVERAGE AND EMSAMBLE AVERAGE?

I READ THE BOOK OF TUCKER 2001 (COMPUTATION OF UNSTEADY INTERNAL FLOWS) THE ENSAMBRE AVERGE FOR THE NAVIER STOKES EQUATIONS, THE AUTOR PRESENT THE EQUATIONS. I THINK THE EQUATIONS FOR THE TIME AVERAGE ARE EQUAL FOR EMSAMBLE AVERAGE, OR NO???

THANKS FELIPE


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