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Aerodynamic Performance of Various Tires with Camber and Toe Angle Variation
- Babu Rao Ponangi - PES University, Department of Mechanical Engineering, India ,
- J. M. Karthik Murthy - PES University, Department of Mechanical Engineering, India ,
- Kunal Kumaresh - PES University, Department of Mechanical Engineering, India ,
- Naren S. Shetty - PES University, Department of Mechanical Engineering, India
Journal Article
02-15-02-0007
ISSN: 1946-391X, e-ISSN: 1946-3928
Sector:
Citation:
Ponangi, B., Murthy, J., Kumaresh, K., and Shetty, N., "Aerodynamic Performance of Various Tires with Camber and Toe Angle Variation," SAE Int. J. Commer. Veh. 15(2):159-173, 2022, https://doi.org/10.4271/02-15-02-0007.
Language:
English
Abstract:
A tire is one of the most essential parts of a vehicle that not only helps to
provide stability but also helps in isolating shocks from the road surface as
well as giving longitudinal and lateral powers for vehicle acceleration,
steering, and braking. We are familiar with the tire as a pneumatic tire, but
with recent developments, a new category of tires called non-pneumatic tires
(NPT) has recently come to light. The unique design equipped for these tires
provides them with several advantages over the conventional pneumatic tires,
which include the elimination of tire blowouts and elimination of punctures.
Since rotating tires are known to contribute up to one-third of the vehicle’s
total aerodynamic force [5] and also
because of the vast advantages provided by the NPT. The present work aims to
investigate the aerodynamic performance of NPT with hexagonal spokes (NPT-HS),
NPT with curved spokes (NPT-CS), and a pneumatic tire (PT) using the
steady-state Reynolds-Averaged Navier-Stokes (RANS) method. Using SIMSCALE, a
cloud computing simulation platform, a comparative study of the aerodynamic
forces acting on these three tires under the different toe and camber angles has
been conducted. A comparative study of the flow pattern around the tire is
further conducted for all three types of tires under the rotating condition. Due
to the complex structure of spokes in NPTs, more counterrotating vortices are
formed resulting in much higher drag and lift coefficient values compared to
PT.