Cavitation Venturi strange alpha behaviour -- CFD Online Discussion Forums

October 26, 2021, 04:31

Cavitation Venturi strange alpha behaviour

nicola_andreini

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nicola andreini

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Dear friends;
I am running simulations on a 2D rectangular venturi using interPhaseChangeFoam.
I am using kosst not using the wall functions but solving the whole boundary layer.
i got a strange behaviour of alpha that i can't correct, i would ask for help if someone had experience with it.
i attach some images and the setup i'm using.
thanks to all !

Attached Images

	alpha.jpg (23.7 KB, 10 views)
	fvscheme.JPG (41.5 KB, 11 views)
	fvsol1.JPG (31.4 KB, 8 views)
	fvsol2.JPG (35.0 KB, 7 views)
	mesh.jpg (100.3 KB, 6 views)

Tags

alpha, cavitation, interphasechangefoam, multiphase, venturi

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