droplet impact on a dry surface.... VOF again

rogerspass · August 26, 2011, 19:20

Hi. All,
I know there are some topics related to this droplet impact on a dry surface using VOF. But I still get lost. My question is how to setup the boundary conditions.

In more detail, for a positive to the right and up respectively coordinate, I create a 2D rectangular face domain, 10mm (L) x 5mm (W), where a 2mm water droplet is located in the center. Both faces are using 0.1 interval size of mesh. I set the the four boundary as walls, also set the droplet as a velocity inlet. The multiphase (VOF) was used. Gravity is point to -Y. After setting a velocity (Vy = -1 m/s) for the droplet in Fluent and proceed the calculation. The droplet just did not move at all. Can someone shade me some light? Do I miss something else? Thanks.

toufik08 · June 27, 2016, 02:12

Hi rogerspass
Did you recieved any answer on your query, I have almost the same problem, if you know how to simulate droplet impact on solid surfcae please help me.
With best regards

August 26, 2011, 19:20	droplet impact on a dry surface.... VOF again	#1
rogerspass New Member Join Date: Mar 2011 Posts: 3 Rep Power: 15	Hi. All, I know there are some topics related to this droplet impact on a dry surface using VOF. But I still get lost. My question is how to setup the boundary conditions. In more detail, for a positive to the right and up respectively coordinate, I create a 2D rectangular face domain, 10mm (L) x 5mm (W), where a 2mm water droplet is located in the center. Both faces are using 0.1 interval size of mesh. I set the the four boundary as walls, also set the droplet as a velocity inlet. The multiphase (VOF) was used. Gravity is point to -Y. After setting a velocity (Vy = -1 m/s) for the droplet in Fluent and proceed the calculation. The droplet just did not move at all. Can someone shade me some light? Do I miss something else? Thanks.

June 27, 2016, 02:12	help	#2
toufik08 New Member tawfiq Join Date: Oct 2013 Posts: 11 Rep Power: 12	Hi rogerspass Did you recieved any answer on your query, I have almost the same problem, if you know how to simulate droplet impact on solid surfcae please help me. With best regards

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Inconstant Surface Tension on Interface in VOF	Atieh	FLUENT	0	February 9, 2007 02:37
VOF simulation free surface caused by gas inject	rensb	FLUENT	4	July 20, 2006 04:45
VOF and droplet impact	simone marras	CFX	4	July 13, 2006 05:54
Surface tension options for VOF models	chapelle	FLUENT	4	September 20, 2005 03:49
VOF and Droplet Formation	saang	Siemens	1	June 7, 2005 03:59