||October 12, 2003 08:08
Need your help
Dear anyone who can help me. i'm a student in last year, i have a hard subject to do , and if you permit i need your help, that is the problem : I have to study the " Fire induced air flow in a tunnel using the low reynolds k, epsilon model". So i have take the Navier- stokes equations ( continuity equation +3 motion equations ( 3 D ) and applied to them the reynolds decomposition ( function = mean of the fuction + fluctuation of the function ) so i have done that for velocities u, v, w and the pressure ; after simplifing i obtain four equations of course , so i must apply the low reynolds number k, epsilon model , and i must close the system equations by another additional equations , so what are these equations , please can you write the system for me , i have already write the first four equations ( continuitu + 3 motion ). Please ,i need your help to begin my work ,i had to dicretize equations and apply a numerical methods ( finite method elements and finite difference method to solve the system. Thank you very much. nb : low reynolds number constants can be found here :http://cfd.me.umist.ac.uk/tmcfd/models/lrnke.html
and here : http://cfd.me.umist.ac.uk/tmcfd/models/hrnke.html
ps: what i need exactly is the "final system to solve , " JUST THE SYSTEM OF EQUATIONS ", ( i will solve it numerically ) , you can simplify boundary conditions if it's needed or take the simpliest case. Please sir i really need your help , i'm really desperate. Best regards.