Eliminating farfield boundary reflections in supersonic simulations

joshkellyjak · December 12, 2018, 08:16

Hi,

I'm trying to simulate the flow around a wedge in supersonic flow. When running I get reflections from the farfield boundary that I need to eliminate. I have tried using the waveTransmissive type but have had no luck.

I'm fairly new to OpenFOAM and could use some help

Thanks!

pete20r2 · December 13, 2018, 08:56

You could also try advective.
http://caefn.com/openfoam/bc-advective-wavetransmissive

mkraposhin · December 14, 2018, 10:21

I would recommend to put large volume cells near boundaries, so that they can absorb disturbances outgoing from the domain from interest

December 12, 2018, 08:16	Eliminating farfield boundary reflections in supersonic simulations	#1
joshkellyjak New Member Josh Kelly Join Date: Dec 2018 Posts: 6 Rep Power: 7	Hi, I'm trying to simulate the flow around a wedge in supersonic flow. When running I get reflections from the farfield boundary that I need to eliminate. I have tried using the waveTransmissive type but have had no luck. I'm fairly new to OpenFOAM and could use some help Thanks!

December 14, 2018, 10:21		#3
mkraposhin Senior Member Matvey Kraposhin Join Date: Mar 2009 Location: Moscow, Russian Federation Posts: 355 Rep Power: 21	I would recommend to put large volume cells near boundaries, so that they can absorb disturbances outgoing from the domain from interest __________________ MDPI Fluids (Q2) special issue for OSS software: https://www.mdpi.com/journal/fluids/..._modelling_OSS GitHub: https://github.com/unicfdlab Linkedin: https://linkedin.com/in/matvey-kraposhin-413869163 RG: https://www.researchgate.net/profile/Matvey_Kraposhin

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December 13, 2018, 08:56		#2
pete20r2 Senior Member Peter Baskovich Join Date: Jul 2014 Posts: 127 Rep Power: 11	You could also try advective. http://caefn.com/openfoam/bc-advective-wavetransmissive