Fsi

vigneshkrish333 · March 7, 2020, 09:53

Hello!!

I am solving a FSI problem. In this regard, I used a realisable k-epsilon model for solving the problem.

In ANSYS Fluent solver, METHODS section which are all diffusion terms and which are all convection terms? so that I can specify the methods to them as per the journal I referred. I have also attached the screen shot of the journal image with this.

Thank You

Schemes1.jpg

vinerm · March 7, 2020, 16:54

The mention in the journal does not imply the available choices. Diffusion terms in Fluent are always discretized using central-difference scheme and, consequently, is second-order accurate. The only option related to diffusion is choice of gradient calculation and limiters. The discretization schemes available under methods are all relevant to convection terms to determine the flux at the upstream faces or for pressure interpolation.

March 7, 2020, 09:53	Fsi	#1
vigneshkrish333 New Member Vignesh Join Date: Feb 2020 Posts: 19 Rep Power: 6	Hello!! I am solving a FSI problem. In this regard, I used a realisable k-epsilon model for solving the problem. In ANSYS Fluent solver, METHODS section which are all diffusion terms and which are all convection terms? so that I can specify the methods to them as per the journal I referred. I have also attached the screen shot of the journal image with this. Thank You Schemes1.jpg

March 7, 2020, 16:54	Discretization	#2
vinerm Senior Member Vinerm Join Date: Jun 2009 Location: Nederland Posts: 2,946 Blog Entries: 1 Rep Power: 35	The mention in the journal does not imply the available choices. Diffusion terms in Fluent are always discretized using central-difference scheme and, consequently, is second-order accurate. The only option related to diffusion is choice of gradient calculation and limiters. The discretization schemes available under methods are all relevant to convection terms to determine the flux at the upstream faces or for pressure interpolation. __________________ Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority.

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