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Title: 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:
 [1];  [2]
  1. Pacifica, CA
  2. Livermore, CA
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
908347
Patent Number(s):
7,073,845
Application Number:
10/786,398
Assignee:
The Regents of the University of California (Oakland, CA)
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 = {2006},
month = {7}
}

Patent:

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