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Density problem using cavitatingFoam

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Old   September 27, 2016, 09:51
Default Density problem using cavitatingFoam
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Juanjo Garcia
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Hi to everyone,

it is my first post. I have been looking for a solution in this forum, but pitifully, I haven't found it.

My problem is:

I am using the cavitatingFoam solver to solve an injection case. This case is about a specific injector, which don't allow cavitation. I have set the boundary conditions for velocity and pressure as follow:

Pressure
Inlet:
totalPressure;

Outlet
waveTransmissive;

Velocity
Inlet:
pressureInletVelocity;

Outlet:
zeroGradient;

I am using a k-epsilon RAS model for turbulence.

I want the density to remain constant, applying the boundary conditions as fixedValue at the inlet and outlet in the value of 743.61 kg/m^3. But the problem is that at the outlet, the density value decreases to 600 kg/m^3 and I don't know why. Is it due to the boundary conditions?

Could someone help me?

Thank you
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cavitatingfoam, cavitation, injection

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