Computational Simulation of Tractor-Trailer Gap Flow with Drag-Reducing Aerodynamic Devices Lawrence Livermore National Laboratory

Format:

Conference/Event

Author/Creator:

Castellucci, Paul J., author.

Conference Name:

2005 SAE Commercial Vehicle Engineering Conference (2005-11-01 : Rosemont, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2005

Summary:

Computational simulations of the Modified Ground Transportation System1 (M-GTS), a 1/14th-scale simplified tractor-trailer geometry, are performed at both laboratory and full-scale Reynolds numbers using the NASA overset grid code OVERFLOW2. Steady Reynolds' Averaged Navier-Stokes (RANS) simulations are conducted to deepen the understanding of tractor-trailer gap flow structure, and to ascertain the time-averaged efficacy of tractor cab extenders and trailer-face splitter plates in reducing aerodynamic drag in typical crosswinds. Results of lab-scale simulations compare favorably to body force and particle image velocimetry (PIV) data obtained from University of Southern California (USC) experiments for two tractor-trailer gap lengths. Full-scale simulations highlight model geometry limitations and allude to the use of splitter plates in place of, or in conjunction with, tractor cab extenders

Notes:

Vendor supplied data

Publisher Number:

2005-01-3625

Access Restriction:

Restricted for use by site license