May 16, 2017, 16:29
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lower pressure drop compared to experimental value in Two phase flow calculations.
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#1
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Member
Ash Kotwal
Join Date: Jul 2016
Location: North Dakota, USA
Posts: 92
Rep Power: 10
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Hello Everyone,
Objective: To simulate Gas-liquid 2 Phase flow in FLUENT based on experimental data, and compare with respect to experimental data for a channel with a sudden area of expansion.
I'm running the FLUENT 2 Phase flow (gas(Nitrogen)-liquid(Water)) Eulerian-Eulerian multiphase model, RSM (Reynold's Stresses 5 equation model) model for turbulence calculations.
it's 2D steady-state analysis.
Boundary Conditions: inlet: pressure Inlet, Outlet: pressure Outlet, Volume fraction is used for consideration between phases. (Values for boundary conditions are taken from Experimental calculations)
Outcome: Computed Pressure Drop is lower than the experimental pressure drop across sudden expansion.
Why is it showing lower pressure drop compared to experimental value?
How can I get exact pressure drop value for expansion channel?
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