论文信息 - The Simulation and Optimization on Flow Field in Intake Port of Engine Based on RE and CFD

The Simulation and Optimization on Flow Field in Intake Port of Engine Based on RE and CFD

Intake port is an important part of the gasoline engine, its structure will influence the gas flow characteristics which directly affects the performance of the engine [1]. In this paper, three-dimensional CFD calculation and structural optimization were used to research the performance of gasoline engine. Firstly, the method of laser scanning and UG software were used to reverse modeling engine exhaust port and get the three-dimensional model. Secondly, after setting boundary conditions and turbulence models, the air flowing through the intake ports were simulated by FLUENT software respectively. Finally, based on numerical methods, the pressure field, velocity field were shown. The results of the simulation of flow field characteristics analysis show that the simulation and experimental results are in good agreement.

[1] H. Endres,et al. Influence of Swirl and Tumble on Economy and Emissions of Multi Valve SI Engines , 1992 .

[2] Frediano V. Bracco,et al. The Use of Intake and Exhaust Measurements with Computer Simulations to Investigate the Evolution of the Internal Flow Field in a Ported Engine , 1991 .

[3] Ingemar Denbratt,et al. Turbulence Characteristics of Tumbling Air Motion in Four-Valve S.I. Engines and their Correlation with Combustion Parameters , 1991 .