|May 18, 2010, 02:40||
What is advantage of SIMPLE algorithm?
Join Date: Feb 2010
Location: Ulsan, Republic of Korea
Posts: 27Rep Power: 7
I tried to solve incompressible Navier-Stokes equations using SIMPLE algorithm as pressure-velocity coupling procedure.
Why many commercial CFD tools use SIMPLE(or family of) algorithm as the pressure-velocity correction procedure to solve incompressible Navier-Stokes equations?
What is advantage of SIMPLE algorithm when it is compared to other methods such as fractional step method?
I need your help!
|May 18, 2010, 07:46||
SIMPLE vs FSM
Join Date: Jun 2009
Location: Trondheim, Norway
Posts: 34Rep Power: 8
The strength of the SIMPLE method is, that together with implicit time treatment of the flow variables you can efficiently obtain a steady state solution or use rather large time steps for unsteady flow computations (CFL>1).
In contrast, if you need a detailed and more accurate resolution of the time scale, than FSM is probably more attractive. Here explicit time treatment of the velocities and Chorinīs projection method for the pressure are used, which makes it comparably easy to devise a high-order time discretization scheme (for example 3rd or 4th order Runge-Kutta). Since the CFL criterion needs to be fulfilled, time steps are rather small.
|equations, incompressible, navier-stokes, simple algorithm|
|Thread||Thread Starter||Forum||Replies||Last Post|
|SIMPLE algorithm in 3D cylindrical coordinates||zouchu||Main CFD Forum||1||January 20, 2014 18:02|
|Looking for simple, robust interface tracking algorithm||ThomasTC||Main CFD Forum||6||February 17, 2012 19:13|
|About Phase Coupled SIMPLE (PC-SIMPLE) algorithm||Yan Kai||Main CFD Forum||0||April 18, 2007 03:48|
|About Phase Coupled SIMPLE (PC-SIMPLE) algorithm||Yan Kai||FLUENT||0||April 13, 2007 23:17|
|SIMPLE algorithm||Jonathan Castro||Main CFD Forum||3||December 10, 1999 05:59|