|June 12, 2015, 07:18||
Three-phase Slug Flow modelling
Join Date: Jun 2015
Posts: 1Rep Power: 0
I am doing the simulation of the three-phase slug simulation for my research project. I have some problems about it, the main one is that I can't develop slug with the conditions used in the experiment.
Following are my simulation conditions:
Mesh: 6000mm*78mm (I tried 2D first)
Three inlets for air/oil/water on the left.
2D ,planar? Unsteady, 1st-Order Implicit Standard k-epsilon turbulence model Standard Wall Functions
surface tension: oil-water 0.03
air/oil/water inlets: velocity inlet, Vair=4m/s Voil=Vwater=0.5m/s
pressure outlet. 0Pa
initialization : Vair=4m/s Voil=Vwater=0.5m/s, air takes up the up half of the pipe, liquid takes the another half. Water cut= 0.4 liquid hold up. Stratified flow at the beginning.
The case runs about 10s with no other problems, but I can't get any slug in the pipe, only very small waves near the inlet, so I would say the flow remains stratified no matter how I change the velocities.
My opinion is maybe I should change planar into other 2D space but I dont know which one is suitable.
Could you please help me? Many thanks.
Last edited by YukiW; June 12, 2015 at 09:01.
|conditions, multiphase flow, slug flow, vof model|
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