CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Phoenics (http://www.cfd-online.com/Forums/phoenics/)
-   -   which equations used in phoenics (http://www.cfd-online.com/Forums/phoenics/52006-equations-used-phoenics.html)

cfd student February 4, 2006 12:12

which equations used in phoenics
 
hi every body i am new user of phoenics i would to know which equation actually phoenics sloves. can you write these equations. i try the phoenics help but its not clear. thabks in advance

Mike February 7, 2006 12:41

Re: which equations used in phoenics
 
PHOENICS solves the Navier Stokes equations, ie conservation equations for continuity, momentum, energy (in terms of temperature, static enthalpy or total enthalpy)and species mass fractions, and also turbulence transport equations. There is an option to solve these equations for a two-phase Eulerian-Eulerian system, and also for a multi-phase Eulerian-Lagrangian system using Lagrangian particle tracking to represent the particulate phases. These equations can be solved in cartesian, cylindrical-polar or body-fitted coordinate systems.

CFD student February 8, 2006 07:07

Re: which equations used in phoenics
 
thanks mike for very clear anwser, but i don't know why the Substantial derivative of pressure with negative sign in the R.H.S in the energy equation. i think it should be postive!

Mike February 9, 2006 07:33

Re: which equations used in phoenics
 
Yes, it is positive. For example, when a gas undergoes adiabatic compression the temperature must rise.

ganeshrenge@rediffmail.com March 1, 2006 00:54

Re: which equations used in phoenics
 
mass, energy and momentum


All times are GMT -4. The time now is 03:46.