Computational flow modeling of a simplified integrated tractor-trailer geometry.

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Description

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 ... continued below

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49 p.

Creation Information

McWherter-Payne, Mary Anna & Salari, Kambiz (Lawrence Livermore National Laboratory, Livermore, CA) September 1, 2003.

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Description

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.

Physical Description

49 p.

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  • Report No.: SAND2003-3383
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/918359 | External Link
  • Office of Scientific & Technical Information Report Number: 918359
  • Archival Resource Key: ark:/67531/metadc884858

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  • September 1, 2003

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 6, 2016, 7:53 p.m.

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McWherter-Payne, Mary Anna & Salari, Kambiz (Lawrence Livermore National Laboratory, Livermore, CA). Computational flow modeling of a simplified integrated tractor-trailer geometry., report, September 1, 2003; United States. (digital.library.unt.edu/ark:/67531/metadc884858/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.