# FD NS implicit solver

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 August 17, 2000, 08:48 FD NS implicit solver #1 N.SUBRAMANIAN Guest   Posts: n/a i am a research scholar in iit madras.i am in need of a finite difference navier-stokes implicit solver.either you provide me the solver or give me the guidelines for developing it.also guide me how to generalise the boundary conditions.

 August 17, 2000, 20:05 Re: FD NS implicit solver,answers? #2 John C. Chien Guest   Posts: n/a (1). Let us know the answer, if you have found one.

 August 17, 2000, 21:30 Re: FD NS implicit solver #3 Istadi Guest   Posts: n/a I just succesfully developed the solver of Navier-Stokes momentum equation by finite-difference method. I applied the implicit scheme by utilization of SIMPLE algorithm that had developed by Patankar [Numerical Heat Transfer and Fluid Flow by Patankar, S.V., 1980, Hemisphere Pub.]. I applied the staggered grid to solve this problem to avoid zigzag pressure on it. Beside this method, you can use the finite volume method that clearly developed by Patankar (1980). It's similarly. Please, to contact me if you have a problem about it. Thanks

 August 18, 2000, 06:39 Re: FD NS implicit solver ? #4 Mehdi BEN ELHADJ Guest   Posts: n/a What a bout results given by your solver of Navier-Stokes momentum equation by finite-difference method ?

 August 18, 2000, 20:58 Re: FD NS implicit solver ? #5 Istadi Guest   Posts: n/a I developed a source code to get a simulation about the streamline of 2D-velocity in cylindrical column of empty or filled by packed bed. This code utilize the algorithm of SIMPLE that developed by Patankar (1980). So, we can give the contour of pressure distribution in the domain. I had applied this system on a deep bed dryer simulation. Thanks

 August 20, 2000, 03:06 Re: FD NS implicit solver ? #6 ram Guest   Posts: n/a how did you take care of the velocity profiles inside the bed..i presumen its a porous bed..?

 August 20, 2000, 22:24 Re: FD NS implicit solver ? #7 Istadi Guest   Posts: n/a Hi, We applied conservation of momentum in the porous media by a volume averaging approach. This method has been succesfully developed by Liu et al (1999)[Liu et al., "Non-linear Flows In Porous Media", J. Non Newtonian Fluid Mech., 86, pp.229-252). For the friction of body force, we applied Ergun correlation for pressure drop in the packed bed. So, we can solve it by FDM or FVM. Thanks