Velocity profile for fluid partially filled in pipe

rkmittal1108@gmail.com · September 18, 2012, 08:14

Hi
I would be a great thankful to those who will help me in solving out this problem-
How to get the velocity and pressure profile for liquid flowing through the pipe which is half filled??????? how shall we do modelling and meshing for it also?

RodriguezFatz · September 19, 2012, 01:44

Profile:
Why don't you do a second simulation of just a long pipe? Use some arbitrary boundary conditions at the inlet and at the outlet you will get a correct profile. That's what I do to get correct profiles for single phase pipes.
Modelling:
Sounds like the perfect spot for the VOF multiphase model, right?
Meshing:
No idea. I think it will be necessary to refine the grid along the water / air surface, right?

September 18, 2012, 08:14	Velocity profile for fluid partially filled in pipe	#1
rkmittal1108@gmail.com Member Rohit kumar Mittal Join Date: Sep 2012 Posts: 41 Rep Power: 13	Hi I would be a great thankful to those who will help me in solving out this problem- How to get the velocity and pressure profile for liquid flowing through the pipe which is half filled??????? how shall we do modelling and meshing for it also?

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September 19, 2012, 01:44		#2
RodriguezFatz Senior Member Philipp Join Date: Jun 2011 Location: Germany Posts: 1,297 Rep Power: 26	Profile: Why don't you do a second simulation of just a long pipe? Use some arbitrary boundary conditions at the inlet and at the outlet you will get a correct profile. That's what I do to get correct profiles for single phase pipes. Modelling: Sounds like the perfect spot for the VOF multiphase model, right? Meshing: No idea. I think it will be necessary to refine the grid along the water / air surface, right?