Influence of rear-roof spoiler on the aerodynamic performance of hatchback vehicle

Cheng, See Yuan; Mansor, Shuhaimi

doi:10.1051/matecconf/20179001027

Cited by 8 publications

(4 citation statements)

References 10 publications

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“…This is caused mainly for that reason that equivalent val-ues of driving resistance (aerodynamic resistance, acceleration resistance, etc.) can be assigned for each vehicle condition [4]. Fig.…”

Section: Analysis Of the Selected Vehicle Performance Parametersmentioning

confidence: 99%

“…This performance is applicable to overcome the driving resistance (it includes especially aerodynamic resistance, acceleration resistance, etc.) [4,6].…”

Section: Maximum Performance At the Wheels Depending On The Vehicle Smentioning

confidence: 99%

“…gradient) at individual gears can be defined. Analysis is performed by comparing the performance at the wheels of particular gear and the sum of required performance to overcome the driving resistance [4,20].…”

Section: Performance Applicability To Overcome the Driving Resistancementioning

confidence: 99%

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Quantification of Road Vehicle Performance Parameters Under Laboratory Conditions

Šarkan¹,

Stopka²

2018

Adv. Sci. Technol. Res. J.

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Engine performance of any kind of road vehicle is considered a fundamental parameter when selecting or comparing vehicles. It affects a number of operating characteristics including, for instance, vehicle maximum speed or vehicle acceleration. A vehicle manufacturer provides the data on performance in the technical description, however, engine performance value is specified in the vehicle registration certificate as well. Engine performance is indicated as the maximum engine output at certain engine speed. Thus, the vehicle operator disposes only the engine performance value, i.e. maximum value. In normal conditions of a road vehicle operation, several different situations take place when it is appropriate to verify the maximum engine performance value. The paper is focused on examination of the road vehicle performance, i.e. engine performance on the roller test bench and its detailed analysis.

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Section: Analysis Of the Selected Vehicle Performance Parametersmentioning

confidence: 99%

“…This performance is applicable to overcome the driving resistance (it includes especially aerodynamic resistance, acceleration resistance, etc.) [4,6].…”

Section: Maximum Performance At the Wheels Depending On The Vehicle Smentioning

confidence: 99%

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Quantification of Road Vehicle Performance Parameters Under Laboratory Conditions

Šarkan¹,

Stopka²

2018

Adv. Sci. Technol. Res. J.

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“…A numerical study performed by Cheng and Mansor [9] with the Ahmed model [10] included a simple rear spoiler that helped to identify the expected trends of making this type of modification. It was found that downforce increases as the spoiler angle rises due to flow deceleration upstream of this device.…”

Section: Rear Spoilersmentioning

confidence: 99%

On the Aerodynamics of an Enclosed-Wheel Racing Car: An Assessment and Proposal of Add-On Devices for a Fourth, High-Performance Configuration of the DrivAer Model

Soares¹,

Knowles²,

Olives³

et al. 2018

SAE Technical Paper Series

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A modern benchmark for passenger cars-DrivAer modelhas provided significant contributions to aerodynamics-related topics in automotive engineering, where three categories of passenger cars have been successfully represented. However, a reference model for highperformance car configurations has not been considered appropriately yet. Technical knowledge in motorsport is also restricted due to competitiveness in performance, reputation and commercial gains. The consequence is a shortage of open-access material to be used as technical references for either motorsport community or academic research purposes. In this paper, a parametric assessment of race car aerodynamic devices are presented into four groups of studies. These are: (i) forebody strakes (dive planes), (ii) front bumper splitter, (iii) rear-end spoiler, and (iv) underbody diffuser. The simplified design of these add-ons focuses on the main parameters (such as length, position, or incidence), leading to easier manufacturing for experiments and implementation in computational studies. Consequently, a proposed model aims to address enclosed-wheel racing car categories, adapting a simplified, 35% scaled-model DrivAer Fastback shape (i.e. smooth underbody, no wheels, and with side mirrors). Experimental data were obtained at the 8ft x 6ft Cranfield Wind Tunnel using an internal balance for force and moment measurements. The aerodynamic performance of each group of add-on was assessed individually in a range of ride heights over a moving belt. All cases represent the vehicle at a zero-yaw condition, Reynolds number (car length-based) of 4.2 × 10 6 and Mach number equal to 0.12. The proposed high-performance configuration (DrivAer hp-F) was tested and a respective Reynolds number dependency study is also provided. In line with the open-access concept of the DrivAer model, the CAD geometry and experimental data will be made available online to the international community to support independent studies.

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CFD Analysis and Reduction Using Aerodynamics Add-On Devices for TATA LPT 1512 Commercial Truck

Prakash,

Lavania,

Garg

et al. 2024

Lecture Notes in Mechanical Engineering

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Influence of rear-roof spoiler on the aerodynamic performance of hatchback vehicle

Cited by 8 publications

References 10 publications

Quantification of Road Vehicle Performance Parameters Under Laboratory Conditions

Quantification of Road Vehicle Performance Parameters Under Laboratory Conditions

On the Aerodynamics of an Enclosed-Wheel Racing Car: An Assessment and Proposal of Add-On Devices for a Fourth, High-Performance Configuration of the DrivAer Model

CFD Analysis and Reduction Using Aerodynamics Add-On Devices for TATA LPT 1512 Commercial Truck

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