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two phase level set mehod, droplet coalescence
Posted Feb 6, 2012, 7:03 a.m. EST Fluid & Heat 2 Replies
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Dear Sir,
I am solving droplet coalescence using tho phase level set method. for 2-D rectangular domain is selected,and the wall on which droplet is kept i gave 80 degree contact angle and the distance between the droplet of radius 1.5mm is 3.5 mm center to center, while other 3 walls i selected no slip condition, and on the top of the droplets i took pressure constraints as 101325 pa. while solving the simulation, when the composite droplet formed due to coalescence is about come in equilibrium condition, the whole composite droplet shift towards right and then come to left. plz suggest me, why this is happening.
Thanks
Rehan
I am solving droplet coalescence using tho phase level set method. for 2-D rectangular domain is selected,and the wall on which droplet is kept i gave 80 degree contact angle and the distance between the droplet of radius 1.5mm is 3.5 mm center to center, while other 3 walls i selected no slip condition, and on the top of the droplets i took pressure constraints as 101325 pa. while solving the simulation, when the composite droplet formed due to coalescence is about come in equilibrium condition, the whole composite droplet shift towards right and then come to left. plz suggest me, why this is happening.
Thanks
Rehan
2 Replies Last Post Feb 8, 2012, 3:38 a.m. EST
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Posted:
1 decade ago
hello friends
i want to provide more information about that problem.
i took fine mesh under physics controlled meshing, re-initialization factor is taken as 0.8 and interface thickness is tpf.hmax/2. rectangular 2-D domain one wall is taken as wetted wall contact angle is 80 degree. drops are placed 3.5 mm apart centre to centre distance. rectangle dimension is 12 by 4.5 mm. drops radii is 1.5 mm.
conservative model is used.
composite drop after coalescence translate when it is about to come in equilibrium.
please help me....
i want to provide more information about that problem.
i took fine mesh under physics controlled meshing, re-initialization factor is taken as 0.8 and interface thickness is tpf.hmax/2. rectangular 2-D domain one wall is taken as wetted wall contact angle is 80 degree. drops are placed 3.5 mm apart centre to centre distance. rectangle dimension is 12 by 4.5 mm. drops radii is 1.5 mm.
conservative model is used.
composite drop after coalescence translate when it is about to come in equilibrium.
please help me....
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Posted:
1 decade ago
composite drop moves in left direction when it is about to come in equilibrium.
PLease help..
PLease help..