Modelling and simulation of flow through a flowbench

Modelling and simulation through flow bench analysis

Aim :- In this study I used that flow bench to study distribution in the cylinder when a valve is introduced operating at different valve lifts conditions

Flow bench analysis is used for testing the intake port and exhaust port of cylinder head of internal combustion engine mainly for designing purpose in this study the calculate the flow rate of fluid and velocity and pressure at different valve lift conditions

The air flow bench can give a wealth of data about the characteristics of a cylinder head or whatever part is tested. The result of main interest is bulk flow. It is the volume of air that flows through the port in a given time. Expressed in cubic feet per minute or cubic meters per second/minute.

SPECIFICATION:

Diameter of cylinder = 0.05 m

diameter of inlet port = 0.02 m

lenght of cylinder = 0.05 m

BOUNDARY CONDITIONS :-

Inlet port (LID 1) = Total pressure (401325.00 pa)

Outlet port (LID 2) = Static pressure (10325.00 pa)

Working fluid - Air

case 1 :-

At valve lift 0.003

Velocity at valve lift at vlve lift 0.003 m

Pressure at valve lift 0.003 m

Case 2 :-

At valve lift 0.06

Velocity at valve lift 0.006 m

Pressure at vlve lift 0.006 m

Case 3 :-

At valve lift 0.09 m

Velocity at valve lift 0.009 m

Pressure at vlve lift 0.009 m

Case 4 :-

At valve lift 0.12 m

Pressure at vlve lift 0.12 m

Case 5 :-

At valve lift 0.015 m

Velocity at valve lift 0.015 m

Pressure at vlve lift 0.015 m

Case 6 :-

At valve lift 0.18 m

Velocity at valve lift 0.018 m

Pressure at vlve lift 0.018 m

Case 7 :-

At valve lift 0.021 m

Velocity at valve lift 0.021 m

Pressure at vlve lift 0.021 m

Output graphs :-

Surface goal mass flow rate 1

Graph of SG mass flow rate 2

Observations :-

Graph of mass flow rate 1 vs valve lift :-

Graph of mass flow rate 2 vs valve lift :-

Refrence :-

https://en.wikipedia.org/wiki/Air_flow_bench