Adaptive aerodynamics of the new Porsche 911 Turbo

Meder, Jochen; Wiegand, Thomas E. von; Pfadenhauer, Michael

doi:10.1007/s38311-014-0023-4

Cited by 7 publications

(2 citation statements)

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“…In [19], it is presented that a deployable front spoiler with a rounded valance leading edge surface was incorporated in the construction of the Ford Probe IV. A more modern solution in the form of the profile deployed at high speed is presented in [20], and in [21] a movable spoiler or air dam is deployed by a pneumatic actuator. In [22], the aerodynamic performance of a car at different overhang lengths of a splitter attached to the body of a 2019 NASCAR model is analyzed using computational fluid dynamics (CFD).…”

Section: Introductionmentioning

confidence: 99%

Towards Balanced Aerodynamic Axle Loading of a Car with Covered Wheels—Inflatable Splitter

et al. 2022

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Generating aerodynamic downforce for the wheels on the front axle of a car is a much more difficult task than for the rear axle. This paper, submitted to the special issue of Energies “Future of Road Vehicle Aerodynamics”, presents an unusual solution to increase the aerodynamic downforce of the front axle for cars with covered wheels, with the use of an elastic splitter. The effect of the inflatable splitter on the aerodynamic forces and moments was studied in a DrivAer passenger car and a fast sports car, Arrinera Hussarya. Providing that the ground clearance was low enough, the proposed solution was successful in increasing the front axle downforce without a significant increase in drag force. The possibility of emergency application of such a splitter in the configuration of the body rotated by up to 2 degrees with the front end raised was also analyzed. An elastic, deformed splitter remained effective for the nonzero pitch case. The results of the calculations are presented in the form of numerical data of aerodynamic forces, pressure and velocity distributions, and their comparisons. The benefits of the elastic splitter are documented, and the noted disadvantages are discussed.

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Section: Introductionmentioning

confidence: 99%

Towards Balanced Aerodynamic Axle Loading of a Car with Covered Wheels—Inflatable Splitter

et al. 2022

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“…Given that the kart speed varies from 45-90 km/h, a strong chassis and rear spoiler prevent the kart from flying at top speed [1]. However, many improvements will impact on the performance of the kart at the desired speed ranges [2][3][4]. A rear spoiler acts like plane wings but in a reversed way: where the plane wings provide lift forces, the spoiler provides down forces.…”

Section: Introductionmentioning

confidence: 99%

One-Way Fluid Structure Interaction of a Go-Kart Spoiler Using CFD Analysis

AL-Rawi

Oumssount²

2020

The 13th Conference of the International Sports Engineering Association

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The spoiler on a go-kart is required to prevent the vehicle becoming airborne at speeds of 80 km/h or more. An optimal spoiler design balances this safety aspect with speed and fuel economy. This paper reports the results of a project to improve the aerodynamic aspects of a go-kart spoiler design using CFD Analysis. We investigated the design of a rear spoiler with three proposed angles (θ1 = 9.5°, θ2 = 19.5°, θ3 = 29.5°). The drag force produced by each of the three designs is compared. Different computational results are discussed such as the air flow velocity, pressure and the applied forces in terms of CFD analysis using one-way fluid structure interaction (one-way FSI) to determine the spoiler stress, strain and drag coefficient. The findings of this paper have implications for the leisure and tourism industries, and may be applicable to other recreational vehicles’ spoilers.

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