Detail publikačního výsledku

Investigation of Vehicle Ride Height and Diffuser Ramp Angle on Downforce and Efficiency

ŠPIČÁK, M.; KNIGHT, J.; KUZENKO, A.; HARITOS, G.; GUOGANG, R.

Originální název

Investigation of Vehicle Ride Height and Diffuser Ramp Angle on Downforce and Efficiency

Anglický název

Investigation of Vehicle Ride Height and Diffuser Ramp Angle on Downforce and Efficiency

Druh

Článek WoS

Originální abstrakt

Diffusers are typically used in motorsport to generate negative lift (downforce). They also reduce aerodynamic drag and so significantly enhance aerodynamic efficiency. The amount of downforce generated is dependent on ride height, diffuser ramp angle and its relative length to that of the vehicle length. This paper details a numerical investigation of the effects of ride height and diffuser ramp angle in order to find an optimum downforce and efficiency for the inverted Ahmed model. A short and long diffuser with ratios of 10% and 35% respectively to that of vehicle length are studied. The short diffuser produced lower maximum downforce and efficiency at a lower ride height and lower angle when compared to the longer diffuser. The long diffuser produced highest downforce and the best efficiency with a ramp angle of 25 degrees at ride height ratio of 3.8% when compared to vehicle length. Different ride heights were found to correspond to different diffuser ramp angles to achieve optimum downforce and efficiencies.

Anglický abstrakt

Diffusers are typically used in motorsport to generate negative lift (downforce). They also reduce aerodynamic drag and so significantly enhance aerodynamic efficiency. The amount of downforce generated is dependent on ride height, diffuser ramp angle and its relative length to that of the vehicle length. This paper details a numerical investigation of the effects of ride height and diffuser ramp angle in order to find an optimum downforce and efficiency for the inverted Ahmed model. A short and long diffuser with ratios of 10% and 35% respectively to that of vehicle length are studied. The short diffuser produced lower maximum downforce and efficiency at a lower ride height and lower angle when compared to the longer diffuser. The long diffuser produced highest downforce and the best efficiency with a ramp angle of 25 degrees at ride height ratio of 3.8% when compared to vehicle length. Different ride heights were found to correspond to different diffuser ramp angles to achieve optimum downforce and efficiencies.

Klíčová slova

vehicle aerodynamics, vehicle simulation/ modelling, alternative vehicle designs, automotive components, Fuel efficiency/ economy, diffuser, downforce, ahmed

Klíčová slova v angličtině

vehicle aerodynamics, vehicle simulation/ modelling, alternative vehicle designs, automotive components, Fuel efficiency/ economy, diffuser, downforce, ahmed

Autoři

ŠPIČÁK, M.; KNIGHT, J.; KUZENKO, A.; HARITOS, G.; GUOGANG, R.

Rok RIV

2024

Vydáno

27.05.2018

Nakladatel

SAGE Publications Ltd

Místo

London

ISSN

0954-4070

Periodikum

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING

Svazek

233

Číslo

8

Stát

Spojené království Velké Británie a Severního Irska

Strany od

2139

Strany do

2145

Strany počet

7

URL

https://doi.org/10.1177%2F0954407018776767

BibTex

@article{BUT147123,
  author="ŠPIČÁK, M. and KNIGHT, J. and KUZENKO, A. and HARITOS, G. and GUOGANG, R.",
  title="Investigation of Vehicle Ride Height and Diffuser Ramp Angle on Downforce and Efficiency",
  journal="PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING",
  year="2018",
  volume="233",
  number="8",
  pages="2139--2145",
  doi="10.1177/0954407018776767",
  issn="0954-4070",
  url="https://doi.org/10.1177%2F0954407018776767"
}