Modenas CT115s performance enhancement by redesign internal geometry to improve the flow pattern of air box

[摘要] This paper reviews a study of engine performance MODENAS CT15s by redesign internal geometry to improve flow pattern of air box. Air box is an empty chamber on the inlet of most combustion engines combustion process. It collects air from outside and feeds it to the intake hoses of each cylinder. The entire air box collects the fresh air and later gets it filtered through the air filter present inside it. Engine can be easily breathing related to flow pattern by best design of air box that can contribute to performance. Flow pattern of air box affect the volumetric efficiency, mass flow rate and velocity which ultimately makes impact up on the engine power & torque. 3D Computational Fluid Dynamics (CFD) analysis was carried out for an existing model and several improvement models to make comparison of air flow behaviour through the air box geometry. Based on the results, geometrical changes like sigle blade placement in inlet plenum showed good improvement in flow behaviour compare to existing model. By using 3D CFD analysis, the best design of the air box for a motorcycle engine is achieved with considerable reduction in development time and cost.

[发布机构] School of Mechatronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, Perlis, Arau; 02600, Malaysia^1;School of Microelectronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, Perlis, Arau; 02600, Malaysia^2;Modenas Research and Development Division, Kawasan Perusahaan, Gurun, Kedah; 08300, Malaysia^3

[效力级别] 工业技术 [学科分类] 工业工程学

[关键词] Airflow patterns;CFD simulations;Combustion pro-cess;Computational fluid dynamics analysis;Geometrical changes;Internal geometry;Performance enhancements;Volumetric efficiency