Aerodynamic drag reduction apparatus for gap-divided bluff bodies such as tractor-trailers
Abstract
An apparatus for reducing the aerodynamic drag of a bluff-bodied vehicle such as a tractor-trailer in a flowstream, the bluff-bodied vehicle of a type having a leading portion, a trailing portion connected to the leading portion, and a gap between the leading and trailing portions defining a recirculation zone. The apparatus is preferably a baffle assembly, such as a vertical panel, adapted to span a width of the gap between the leading and trailing portions so as to impede cross-flow through the gap, with the span of the baffle assembly automatically adjusting for variations in the gap width when the leading and trailing portions pivot relative to each other.
- Inventors:
-
- Pacifica, CA
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 908347
- Patent Number(s):
- 7073845
- Application Number:
- 10/786,398
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS B62D - MOTOR VEHICLES
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Ortega, Jason M, and Salari, Kambiz. Aerodynamic drag reduction apparatus for gap-divided bluff bodies such as tractor-trailers. United States: N. p., 2006.
Web.
Ortega, Jason M, & Salari, Kambiz. Aerodynamic drag reduction apparatus for gap-divided bluff bodies such as tractor-trailers. United States.
Ortega, Jason M, and Salari, Kambiz. Tue .
"Aerodynamic drag reduction apparatus for gap-divided bluff bodies such as tractor-trailers". United States. https://www.osti.gov/servlets/purl/908347.
@article{osti_908347,
title = {Aerodynamic drag reduction apparatus for gap-divided bluff bodies such as tractor-trailers},
author = {Ortega, Jason M and Salari, Kambiz},
abstractNote = {An apparatus for reducing the aerodynamic drag of a bluff-bodied vehicle such as a tractor-trailer in a flowstream, the bluff-bodied vehicle of a type having a leading portion, a trailing portion connected to the leading portion, and a gap between the leading and trailing portions defining a recirculation zone. The apparatus is preferably a baffle assembly, such as a vertical panel, adapted to span a width of the gap between the leading and trailing portions so as to impede cross-flow through the gap, with the span of the baffle assembly automatically adjusting for variations in the gap width when the leading and trailing portions pivot relative to each other.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 11 00:00:00 EDT 2006},
month = {Tue Jul 11 00:00:00 EDT 2006}
}
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