Cavitation Venturi strange alpha behaviour -- CFD Online Discussion Forums

October 26, 2021, 03:31

Cavitation Venturi strange alpha behaviour

nicola_andreini

New Member

nicola andreini

Join Date: Jan 2020

Location: Florence

Posts: 4

Rep Power: 6

nicola_andreini is on a distinguished road

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, 7 views)
	fvscheme.JPG (41.5 KB, 8 views)
	fvsol1.JPG (31.4 KB, 6 views)
	fvsol2.JPG (35.0 KB, 5 views)
	mesh.jpg (100.3 KB, 4 views)

Tags

alpha, cavitation, interphasechangefoam, multiphase, venturi

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are Off Pingbacks are On Refbacks are On Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
VOF interFoam - Strange behaviour in a micro T-junction	pablitobass	OpenFOAM Running, Solving & CFD	22	July 28, 2023 15:11
Strange behaviour when using compressibleInterFoam with constantAlphaContactAngle	TobM	OpenFOAM Running, Solving & CFD	2	May 11, 2016 06:34
[sprayFoam] strange spray formation behaviour	pbalz	OpenFOAM Running, Solving & CFD	0	March 23, 2015 11:41
strange pressure behaviour with symmetricPlane boudary condition - interFoam	duongquaphim	OpenFOAM Running, Solving & CFD	10	August 20, 2013 14:00
Strange residuals behaviour	xxxx	Main CFD Forum	1	July 13, 2013 14:40

All times are GMT -4. The time now is 23:27.