Investigation into the Aerodynamic Performance of a Concept Sports Car

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Transport aerodynamic optimisation has become an increasingly important field of study in response to emerging factors, such as new human needs and market demands. This paper provides a concept in-house built sports-car aerodynamic and shape optimisation. Wind tunnel tests and numerical simulations have been set-up and conducted to understand the concept vehicle aerodynamic structure and needs for performance improvement. A computer-aided design model has been developed and implemented into the computational fluid dynamics (CFD) software of StarCCM+ for detailed analysis. A 1/4th full-scale fibreglass model has been manufactured for validation. The combined experimental and CFD analyses show that the original aesthetic design exhibits high rear-end lift-force. Modifications have been assessed to improve the drag and lift forces for the front, middle and rear regions. Several geometrical changes are introduced, including new rear-wing design. Also, the front end, roof profile and various ducting modifications have been considered. The introduced design changes lead to optimised downforce of -560.18 N with negligible increase to the accumulated drag effects with C_D≤0.3.
Original languageEnglish
JournalJournal of Applied Fluid Mechanics
Publication statusAccepted/In press - 11 Aug 2019

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Sports
aerodynamics
Aerodynamics
Railroad cars
computational fluid dynamics
drag
Drag
Computational fluid dynamics
shape optimization
wind tunnel tests
optimization
roofs
Shape optimization
glass fibers
computer aided design
wings
Roofs
aircraft
Wind tunnels
emerging

Keywords

  • Aerodynamics
  • CFD modelling
  • Drag-force; Downforce
  • Light-weighting

Cite this

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title = "Investigation into the Aerodynamic Performance of a Concept Sports Car",
abstract = "Transport aerodynamic optimisation has become an increasingly important field of study in response to emerging factors, such as new human needs and market demands. This paper provides a concept in-house built sports-car aerodynamic and shape optimisation. Wind tunnel tests and numerical simulations have been set-up and conducted to understand the concept vehicle aerodynamic structure and needs for performance improvement. A computer-aided design model has been developed and implemented into the computational fluid dynamics (CFD) software of StarCCM+ for detailed analysis. A 1/4th full-scale fibreglass model has been manufactured for validation. The combined experimental and CFD analyses show that the original aesthetic design exhibits high rear-end lift-force. Modifications have been assessed to improve the drag and lift forces for the front, middle and rear regions. Several geometrical changes are introduced, including new rear-wing design. Also, the front end, roof profile and various ducting modifications have been considered. The introduced design changes lead to optimised downforce of -560.18 N with negligible increase to the accumulated drag effects with C_D≤0.3.",
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author = "Mohammad Ghaleeh",
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month = "8",
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journal = "Journal of Applied Fluid Mechanics",
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publisher = "Isfahan University of Technology",

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Investigation into the Aerodynamic Performance of a Concept Sports Car. / Ghaleeh, Mohammad.

In: Journal of Applied Fluid Mechanics, 11.08.2019.

Research output: Contribution to journalArticleResearchpeer-review

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KW - Aerodynamics

KW - CFD modelling

KW - Drag-force; Downforce

KW - Light-weighting

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SN - 1735-3572

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