Engine Simulation of a Restricted FSAE Engine, Focusing on Restrictor Modelling

Cauchi, Jonathan; Farrugia, Mario; Balzan, Noel

doi:10.4271/2006-01-3651

Cited by 14 publications

(6 citation statements)

References 2 publications

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“…What is worth mentioning is that the Cooper Union Formula SAE (FSAE) team adopted the Suzuki GSXR-600 engine and adjusted the runner through the control mechanism in different engine conditions, which could change the length of the air intake's flow pass from 216 mm to 325 mm and eventually improve the peak power by more than 22% and increase the output torque by 5% [6]. Besides, optimising the intake manifold, changing the camshaft to change the timing distribution system and other ways can improve the engine power performance [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Development of a New-Concept Supercharged Single-Cylinder Engine for Race Car

Song

Yang

et al. 2020

Energies

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This article summarises the development and experience of the Formula Student race car engine from 2018. According to the technical rules of Formula Student after the change in 2017, this engine adopts a new design concept, employs a 690-mL single-cylinder engine as the base, and applies ‘response enhancement technology’ with supercharging as the core to achieve a high-power output, a wide high-torque range and an excellent response capability. During the development, various studies on the dynamic performance of the vehicle and the engine were conducted, including vehicle dynamics analysis and track simulation, parameter matching of the supercharger and the engine, control strategy design, and the intake and exhaust system design. This research builds a supercharger air flow and efficiency test bench and an engine performance test bench. Test results show that the developed engine can output 122% of the original power and 120% of the original torque with a 20-mm diameter intake restrictor. Compared with previous generation race cars with a turbocharged four-cylinder engine, the new race car‘s 0–100 km/h acceleration time is shortened by 0.2 s, the torque response time under typical condition is shortened by 80%, and the lap time of the integrated circuit is reduced by 7%.

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Section: Introductionmentioning

confidence: 99%

Development of a New-Concept Supercharged Single-Cylinder Engine for Race Car

Song

Yang

et al. 2020

Energies

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“…However, these tuned intake runners achieved best performance for a limited range of engine speeds. Cauchi J, [4] investigated optimum converging and diverging angles for minimum pressure drop across the restrictor using 1-D engine simulation software and experimental techniques. Various empirical equations for determining the appropriate dimensions for runner length, runner diameter, plenum volume, etc.…”

Section: Introductionmentioning

confidence: 99%

The Design and Validation of Engine Intake Manifold using Physical Experiment and CFD

Singh¹,

Tjprc²

2019

IJAuERD

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Race-car engineers aim to design an intake manifold which can maintain both low-end and top-end power without compromising the responsiveness of the engine throughout the power band. A major obstacle in achieving this goal is the rule requirement by FSAE for the mandatory presence of air intake restrictor which limits top-end power. In this paper, the selection criteria for design parameters such as runner length, plenum volume and intake geometry have been discussed. The effect of runner length and plenum volume on throttle response and manifold pressure has been studied through a physical exp. on a prototype variable geometry intake manifold. CFD simulations have been performed on ANSYS CFX to optimize the geometry for venturi and plenum. The geometry for which there was minimum pressure loss and maximum mass flow rate was chosen in the final design. The adopted approach was validated by conducting the same exp. on the designed intake manifold.

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“…Sensors used are piezoresistive FlexiForce type (Tekscan manufacturer), resistive-based technology that can reads forces perpendicular in its sensing plane [19]. In the experiments we used a total of 4 sensors with which create a measurement area (6400 mm 2 ) for air flow pressure that acting on the car body (Fig. 5).…”

Section: Methodsmentioning

confidence: 99%

“…For this are done many tests in specialized wind tunnels, experimental tests that are very expensive and using a lot of measurement systems but offers the immediate benefits of a high accuracy of the data obtained [8,12]. The major differences in aerodynamic science appear that while the automotive industry is trying to reduce drag forces (and thus reducing fuel consumption) [2,5], for Formula SAE Student race-cars, these drag forces are required to be distributed as larger and balanced on overall body car (due to the specific conditions of racing -high speeds).…”

Section: Introductionmentioning

confidence: 99%

“…Today, the popularity of the competition among students is globally, Formula SAE Student tradition already has franchises in different countries: USA, UK, Germany, Italy, Australia and Hungary. To stimulate students' creativity in building a Formula SAE Student prototype, specific well-established general rules (construction and safety) was set, following the students to discover and implement innovative solutions to improve performance racing car inside imposed regulation limits [2,9,11]. One of the immediate ways to increase performance of Formula SAE Student race-car is to improve the overall aerodynamic performance through experiments in wind tunnels [12] or applying numerical simulation processes [16].…”

Section: Introductionmentioning

confidence: 99%

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Benchmark tests for a Formula SAE Student car prototyping

Mariașiu

2011

Open Engineering

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Aerodynamic characteristics of a vehicle are important elements in its design and construction. A low drag coefficient brings significant fuel savings and increased engine power efficiency. In designing and developing vehicles trough computer simulation process to determine the vehicles aerodynamic characteristics are using dedicated CFD (Computer Fluid Dynamics) software packages. However, the results obtained by this faster and cheaper method, are validated by experiments in wind tunnels tests, which are expensive and were complex testing equipment are used in relatively high costs. Therefore, the emergence and development of new low-cost testing methods to validate CFD simulation results would bring great economic benefits for auto vehicles prototyping process. This paper presents the initial development process of a Formula SAE Student race-car prototype using CFD simulation and also present a measurement system based on low-cost sensors through which CFD simulation results were experimentally validated. CFD software package used for simulation was Solid Works with the FloXpress add-on and experimental measurement system was built using four piezoresistive force sensors FlexiForce type.

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Engine Simulation of a Restricted FSAE Engine, Focusing on Restrictor Modelling

Cited by 14 publications

References 2 publications

Development of a New-Concept Supercharged Single-Cylinder Engine for Race Car

Development of a New-Concept Supercharged Single-Cylinder Engine for Race Car

The Design and Validation of Engine Intake Manifold using Physical Experiment and CFD

Benchmark tests for a Formula SAE Student car prototyping

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