Preliminary Numerical Modelling of a Dynamic Spring-Mounted Wing System to Reduce the Drag of Vehicles at Higher Speeds

Jason Knight, Jay Patel, Harry Prouse-Edwards, Simon Fels, Diogo Montalvao, Andrew Lewis

Research output: Contribution to journalArticlepeer-review

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Abstract

The dynamic behaviour of a spring-mounted symmetrical NACA0012 wing in a freestream flow of air is studied in the pre-stall region, over 0° to 12° angles of incidence. The primary aim of this work is for use within the automotive sector to reduce drag and fuel emissions. However, this work will also be of interest in the motorsport sector to improve performance, and also have some applications within the aerospace and renewable energy sectors. The general operation of the concept has previously been verified at these low angles in the pre-stall region with that of a theoretical estimation using finite and infinite wings. This paper provides a numerical solution of the same problem and is compared with the previous experimentation. At these low angles, the computations yield a dynamic response settling into a static equilibrium. The stable solutions match the start of a steady regime well, when compared with the experiment. The trends are also comparable with the experiment, but the velocities at which they occur are underestimated in the computation. The computations demonstrate a drag reduction of 59% when compared to a fixed wing, whereas the lift remains stable at a near constant value with increasing wind speed. Thence, downforce is maintained whilst drag is reduced, which will facilitate higher speeds on the straight whilst maintaining vehicle direction stability. Limitations to this proof-of-concept work are highlighted and future development work is suggested to achieve even further increases in performance.
Original languageEnglish
Article number4030031
Pages (from-to)592-608
Number of pages17
JournalDynamics
Volume4
Issue number3
Early online date1 Aug 2024
DOIs
Publication statusPublished - 30 Sept 2024

Keywords

  • flexible wings
  • drag reduction
  • CFD
  • springed systems
  • fluid–structure interaction
  • aeroelasticity
  • fuel efficiency

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