Modelling and simulation of flow through a flowbench

AIM : In this project, we are creating a 3D model of a Flow Bench and runing the flow analysis & perform the following operations.

• Grid dependence test

For three grids run your simulation at a particular valve lift and explain your results.

• Effect of valve lift on mass flow rate

Once you have decided the best grid, run a parametric sweep to show the effect of valve lift on mass flow rate.

Input Parameters :

External diameter of cylinder : 0.10m.

External diameter of inlet port : 0.025m.

Shell : 0.0015m.

Intel Total Pressure : 101325 [Pa] at temperature 293.2 K.

Outlet Static Pressure : 200000 [Pa] at temperature 293.2 K.

3D Model:

Procedure:

• A cylinder and valve are created with the given dimensions.
• Valve dimensions are constrained in order to movie the value vertically, and model is saved.
• And create a new flow simulation project and Insert Boundary Condition as intel as total pressure and outlet as static pressure and insert surface goals as mass flow rate.
• A new parametric study is used to observe the effect of Grid levels, and Velocity and Pressure cut plots, and different valve lift range =0.001m to 0.008m.
• And make the Flow Trajectories.

Results:

Gride Refinement level 3 velocity:

Gride Refinement level 4 velocity:

Gride Refinement level 5 velocity:

Valve lift on mass flow rate with differnet rang 0.001m to 0.008m, and cut plots of velocity and pressure.

Value lift at 0.001m and cut plots

Velocity

Pressure

Value lift at 0.002m and cut plots

Velocity

Pressure

Value lift at 0.003m and cut plots

Velocity

Pressure

Value lift at 0.004m and cut plots

Velocity

Pressure

Value lift at 0.005m and cut plots

Velocity

Pressure

Value lift at 0.006m and cut plots

Velocity

Pressure

Value lift at 0.007m and cut plots

Velocity

Pressure

Flow Trajectories.

Velocity

Pressure

Surface goals of mass flow rate.

Conclusion:

Valve lifts gets increses,The value of Velocity and pressure are also increses and mass flow rate also get incresed, when gride level gets incresed we get more accuracy.