Influence of Intake Port Configuration of Gasoline Engine on In-Cylinder Flow
Two different intake ports of gasoline engine were studied through steady numerical simulation and experiment and the test data were compared with the simulation data.Meanwhile,the transient simula-tion technology was applied to calculate the in-cylinder flow field.The results show that the data of the simulation show good agreement with the test data,and the deviation degree of the two is less than 5%.And the flow coefficient and the tumble ratio of the optimized intake port are improved.The increase of the average turbulent kinetic energy in cylinder at the intake stage and ignition time is conducive to the generation of homogeneous mixture of air and fuel and the in-cylinder combustion improvement,which is due to the optimal design of the structure.
Numerical simulationIntake port configurationIn-cylinder flowTurbulent kinetic energy