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Title: Computational Flow Modeling of a Simplified Integrated Tractor-Trailer Geometry

Abstract

For several years, Sandia National Laboratories and Lawrence Livermore National Laboratory have been part of a consortium funded by the Department of Energy to improve fuel efficiency of heavy vehicles such as Class 8 trucks through aerodynamic drag reduction. The objective of this work is to demonstrate the feasibility of using the steady Reynolds-Averaged Navier-Stokes (RANS) approach to predict the flow field around heavy vehicles, with special emphasis on the base region of the trailer, and to compute the aerodynamic forces. In particular, Sandia's computational fluid dynamics code, SACCARA, was used to simulate the flow on a simplified model of a tractor-trailer vehicle. The results are presented and compared with NASA Ames experimental data to assess the predictive capability of RANS to model the flow field and predict the aerodynamic forces.

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
15006457
Report Number(s):
UCRL-ID-154877
TRN: US0400773
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 15 Sep 2003
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; AERODYNAMICS; EFFICIENCY; GEOMETRY; LAWRENCE LIVERMORE NATIONAL LABORATORY; NASA; SANDIA NATIONAL LABORATORIES; SIMULATION

Citation Formats

Salari, K, and McWherter-Payne, M. Computational Flow Modeling of a Simplified Integrated Tractor-Trailer Geometry. United States: N. p., 2003. Web. doi:10.2172/15006457.
Salari, K, & McWherter-Payne, M. Computational Flow Modeling of a Simplified Integrated Tractor-Trailer Geometry. United States. doi:10.2172/15006457.
Salari, K, and McWherter-Payne, M. Mon . "Computational Flow Modeling of a Simplified Integrated Tractor-Trailer Geometry". United States. doi:10.2172/15006457. https://www.osti.gov/servlets/purl/15006457.
@article{osti_15006457,
title = {Computational Flow Modeling of a Simplified Integrated Tractor-Trailer Geometry},
author = {Salari, K and McWherter-Payne, M},
abstractNote = {For several years, Sandia National Laboratories and Lawrence Livermore National Laboratory have been part of a consortium funded by the Department of Energy to improve fuel efficiency of heavy vehicles such as Class 8 trucks through aerodynamic drag reduction. The objective of this work is to demonstrate the feasibility of using the steady Reynolds-Averaged Navier-Stokes (RANS) approach to predict the flow field around heavy vehicles, with special emphasis on the base region of the trailer, and to compute the aerodynamic forces. In particular, Sandia's computational fluid dynamics code, SACCARA, was used to simulate the flow on a simplified model of a tractor-trailer vehicle. The results are presented and compared with NASA Ames experimental data to assess the predictive capability of RANS to model the flow field and predict the aerodynamic forces.},
doi = {10.2172/15006457},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {9}
}

Technical Report:

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