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Old   May 30, 2011, 04:00
Question VOF Fluent
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Monty
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Hello friends,


I need help regarding simulation of water droplet,s in horizontal pipe (channel) using VOF model in Fluent.

Thanks
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Old   May 30, 2011, 06:23
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Chk this out

https://www.vki.ac.be//download/dcsu...u_pr200810.pdf
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Old   May 30, 2011, 06:25
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I am assuming that since you mentioned the VOF model that you are not modeling water spray which leads to droplet formation because if that is the case you need to use the DPM model.
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Old   May 30, 2011, 11:44
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Quote:
Originally Posted by alastormoody11 View Post
I am assuming that since you mentioned the VOF model that you are not modeling water spray which leads to droplet formation because if that is the case you need to use the DPM model.
Hello

in my case there is water droplet at the inlet which has to be injected with some velocity in straight horizontal pipe. It is two phase flow (air and water drop).

Can you elaborate please how should I go with it...

thanks...
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Old   May 30, 2011, 12:14
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Quote:
Originally Posted by monty_p20 View Post
Hello friends,


I need help regarding simulation of water droplet,s in horizontal pipe (channel) using VOF model in Fluent.

Thanks
was writing a thesis on theme: numerical modeling of the evaporation of a sessile drop (heat transfer and mass transfer during evaporation) gout and 2 mm radius and 78 angle of contact lands on a plate 1 mm episeur heated to 100 C , (geomitrie on the software and Gambit 2.3.16 Fluent 6.3.26 simulation). Heat transfer in the drop in ambient air and carried by conduction mode.Saturated vapor phase change resulting al'interface liquid-vapor is transported by diffusion in air temperature = 25 C and humidity 40 far from the drop.
Flows in the liquid phase or gaseous phase are not considered in the mathematical model proposed.

The assumptions are:
- Newtonian fluids (air, water)
- Gout is axisymmetric (about Oz)
- The drop is in equilibrium
- Or can define a contact angle θ at the triple line
- The gravity is along the axis Oz
- Transfers of heat and mass unsteady
- Heat transfer by radiation neglected
- No movement in the air
mathematical formulation for use in the energy equation in cylindrical coordinates and the diffusion equation.

my problem on the mathematical formulation and simulation software Fluent.
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Old   May 30, 2011, 12:34
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hi Alastromoody..

I have to do simulation in the same way as given in this attachement. air + water droplet...Can u give me more detail ,,,

thanks
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