ANSYS FLUENT - Gate Valve Parametric Study
Aim
To perform a parametric study on the gate valve simulation by setting the opening from 10% to 80%.
Model

Fluid volume
The fluid volume is generated to get rid of the unwanted solid regions which doesn't affect the fluid flow. We us Spaceclaim to generate it.

Mesh
Base size = 10 mm

mesh cross-section view

Simulation
Models
Steady
Gravity(in negative z axis 9.81 m/s^2)
Turbulence
K-Epsilon realizable
Scalalable wall functions
Fluid used is water.
Inlet - Pressure inlet(10pa )
Outlet - Pressure outlet
Parmeters set
Opening of the valve and mass flow rate.
solution
10 % opening
Velocity contour plot

Residual plot

Mass flow rate plot

Mass flow rate -0.14963771 kg/s
20 % opening
Cut section

Velocity contour plot

Residual plot

Mass flow rate plot

Mass flow rate -0.23812 kg/s
30 % opening
Cut section

Velocity contour plot

Residual plot

Mass flow rate plot

Mass flow rate -0.36134 kg/s
40 % opening
Cut section

Velocity contour plot

Residual plot

Mass flow rate plot

Mass flow rate -0.47348 kg/s
50 % opening
Cut section

Velocity contour plot

Residual plot

Mass flow rate plot

Mass flow rate -0.46801 kg/s
60 % opening
Cut section

Velocity contour plot

Residual plot

Mass flow rate plot

Mass flow rate -0.67687 kg/s
70 % opening
Cut section

Velocity contour plot

Residual plot

Mass flow rate plot

Mass flow rate -0.73263 kg/s
80 % opening
Cut section

Velocity contour plot

Residual plot

Mass flow rate plot

Mass flow rate 1.2368 kg/s
Conclusion
Mass flow rates

Conclusion
As the valve opens from 10 to 80% the mass flow increases.