CFD Online Logo CFD Online URL
Home > Forums > General Forums > Main CFD Forum

non linear continuity equation

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Search this Thread Display Modes
Old   May 30, 2000, 08:43
Default non linear continuity equation
Posts: n/a

I am working on a combustion problem in which i solve the continuity equation alongwith the species and the energy equations.(Pressure constant-low mach flow-momemtum eqn is not considered)The continuity equation is a nonlinear hyperbolic equation {rho=rho(r,t),v=v(r,t)}which has to be marched forward in radial direction to solve for radial velocity v,starting from an initially prescribed v. v is also to be used in the species and energy equations.I am unsure about the right approach to discretize and numerically implement this using the species and energy equations.Before solving for the continuity equation i discretize the species and energy equations and use the value of Y (mass fraction) and T in the equation of state to get an updated rho(n+1).I am not sure about handling the (rho*v) term which appears in the equation.I intend to linearize after discretizing the equation.I am using a crank nicholson scheme.Is this the sutable/appropriate approach.I would be grateful for any response

Thanks in advance

  Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
How to write k and epsilon before the abnormal end xiuying OpenFOAM Running, Solving & CFD 8 August 27, 2013 16:33
Upgraded from Karmic Koala 9.10 to Lucid Lynx10.04.3 bookie56 OpenFOAM Installation 8 August 13, 2011 05:03
IcoFoam parallel woes msrinath80 OpenFOAM Running, Solving & CFD 9 July 22, 2007 03:58
continuity equation Rafal Main CFD Forum 4 November 29, 2006 10:27
Could anybody help me see this error and give help liugx212 OpenFOAM Running, Solving & CFD 3 January 4, 2006 19:07

All times are GMT -4. The time now is 17:43.