|June 11, 2004, 06:32||
Unsteady drop deformation under zero gravity
I am simulating a unsteady drop deformation under zero gravity uniform flow in Fluent. I am not getting any change in shape of drop. Drop is moving towards downstream direction but no change in shape which is a desirable for this simulation.
I am using -
(In SI Units)
Gas density =1.225
Gas velocity at inlet = 1.2 m/sec
Duct size= 10 cm in X-dir and 20 cm in y-dir
grid : 200 cells in X and 200 in Y dir
Bubble diameter 1mm
Webber number=8 and 40
I ran the case upto 2 seconds.
Any help or comments will be apriciated...
Thanks in advance.
|June 11, 2004, 10:02||
Re: Unsteady drop deformation under zero gravity
Hi, Refine your mesh so that AT LEAST you have 10 cells along the diameter of your drop. Which multiphase model are you using, what are the related parameters you have chosen? More details pls..
There should normally be deformations at such high We (I hope you calculate your We using relative velocity between the drop and the surrounding gas phase).
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