Investigation and optimization of the acoustic performance of formula student race car intake system using coupled modelling techniques

Abstract

The University of Miskolc has previously designed and prototyped several race cars for the Formula Student (FS) competition. Unfortunately, none of these cars utilized air intake systems meeting all the requirements of regulations. Intake system are used to feed the engine with sufficient amount of air for complete combustion inside the combustion chamber to produce maximum power. The air flow during flowing produce sound waves due to rate of turbulence and boundary layer separation, and according to standard regulation this sound should be controlled minimum as possible. Recent advances in modelling procedures for accurate performance prediction have led to the development of modelling methods for practical intake system components in commercial design. Engine designers need simple and fast modelling tools, especially in the preliminary design evaluation stages. In this study, commercial software Solidworks and advanced design software Creo 4.0 were used in addition for that Computational Fluid Dynamics (CFD) analysis is performed. Frequency domain analysis is made to receive behaviour of the entire system under assumed conditions.

A review of the design and control using computational fluid dynamics of gasoline direct injection engines

“…In order to build and optimize the intake system by eliminating secondary injectors, Mohamad et al [19] used coupled method technique and applied new location for the primary injectors for the Formula race car engine, power output, torque, specific fuel consumption, along with three-dimensional air flow to the engine were monitored. Mohamad et al [20] used CFD tools to conduct different design phases to test two major flow properties that are intake system velocity and pressure. The authors show that in the plenum zone and runner part, velocity is theoretically high, which can lead to air volume fluctuations in the combustion chamber at high engine speed.…”