UDF for VOF

July 21, 2000, 10:03

Hi,

I am working on a multi-phase problem. A tube is filled with water at t=0, then, an air bubble flows into the domain at the tube inlet. Due to surface tension, there is a curvature at the air/liquid interface. How to use UDF to specify the air volume fraction at each grid point at the inlet (as a function of time)? Thanks!

Pei-Ying Hsieh

rsingh7 · July 17, 2014, 17:38

Hi,

I need to calculate force at the interface in VOF simulation. Using CSF model, one need to compute the curvature of the interface. Can any one help me to write fluent UDF for this.

I will really appreciate for this.

Rajesh

July 21, 2000, 10:03	UDF for VOF	#1
Pei-Ying Hsieh Guest Posts: n/a	Hi, I am working on a multi-phase problem. A tube is filled with water at t=0, then, an air bubble flows into the domain at the tube inlet. Due to surface tension, there is a curvature at the air/liquid interface. How to use UDF to specify the air volume fraction at each grid point at the inlet (as a function of time)? Thanks! Pei-Ying Hsieh

July 17, 2014, 17:38	Interface curvature computaion in VOF	#2
rsingh7 New Member Rajesh Singh Join Date: Jun 2010 Posts: 15 Rep Power: 15	Hi, I need to calculate force at the interface in VOF simulation. Using CSF model, one need to compute the curvature of the interface. Can any one help me to write fluent UDF for this. I will really appreciate for this. Rajesh

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