This paper presents results of the simulation of two vehicles overtaking each other at highways conditions . The simulation was fully unsteady and tracks the maneuver for several body lengths from downstream to upstream. Different mesh strategies have been investigated and assessed. Structured methods with sliding planes have been found the most feasible. The results shown include the effects of relative speed and lateral separation. The passing maneuver is described in detail, and a number of physical phenomena are identified. In particular, the rapid fluid compression and acceleration at the nose passing situation yields a pulse in the drag of the overtaken vehicle. The high pressure bow wave followed swiftly by the low-pressure wake affects the side force and lateral stability at positions slightly different than the nose passing.
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e-mail: a.filippone@manchester.ac.uk
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March 2007
Technical Papers
Unsteady Computational Analysis of Vehicle Passing
James Clarke,
James Clarke
School of Mechanical, Aerospace & Civil Engineering,
The University of Manchester
, Manchester M60 1QD, United Kingdom
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Antonio Filippone
Antonio Filippone
School of Mechanical, Aerospace & Civil Engineering,
e-mail: a.filippone@manchester.ac.uk
The University of Manchester
, Manchester M60 1QD, United Kingdom
Search for other works by this author on:
James Clarke
School of Mechanical, Aerospace & Civil Engineering,
The University of Manchester
, Manchester M60 1QD, United Kingdom
Antonio Filippone
School of Mechanical, Aerospace & Civil Engineering,
The University of Manchester
, Manchester M60 1QD, United Kingdome-mail: a.filippone@manchester.ac.uk
J. Fluids Eng. Mar 2007, 129(3): 359-367 (9 pages)
Published Online: August 19, 2006
Article history
Received:
March 6, 2006
Revised:
August 19, 2006
Citation
Clarke, J., and Filippone, A. (August 19, 2006). "Unsteady Computational Analysis of Vehicle Passing." ASME. J. Fluids Eng. March 2007; 129(3): 359–367. https://doi.org/10.1115/1.2427085
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