Week 4: Project - Steady state simulation of flow over a throttle body

Objective:

To perform Steady-state simulation of fluid flow over a throttle body

To post convert the results and show pressure and velocity contours for the both the cases

To show the plots for pressure, velocity, mass flow rate and total-cell-count

Throttle body:

A throttle is the mechanism by which fluid flow is managed by constriction or obstruction. A throttle body is essentially a large air valve that sits between the intake manifold and the air intake pipe. An engine has one throttle body, which bolts to the intake manifold’s plenum (the large air cavity in the center).A throttle body controls airflow into the engine, a crucial factor for controlling the air/fuel ratio

Step Up

Simulation parameter

Solver Parameter

Boundary Conditions

Elbow conditions

Inlet Conditions

Outlet Condition

Base Grid

Meshing

Plots

Bound_id_3 is inlet

Bound_id_4 is outlet

MassFlowRate

we observe from the plot that mass_flow_inlet is equal to outflow (i.e 0.063kg/s),it converges after 4000 cycles

Velocity

we observe that inlet velocity is equal to outlet velocity that is 217m/s, it converges after 4000 cycles

Pressure

The inlet pressure eventually decreses because their is obstruction of throttle,the engergy is observed by the throtle

Total_cell_count

It takes 16000 cells to simulate the steady state simulation

Animation

Streamline flow over throtle

velocity

Pressure

Conclusion

we studied that how the fluid flows inside the elbow with throtle fixed at the center,the flow nearly converges after 4000 cycles