Computational simulation of heavy trucks

Kidambi Sreenivas, D. Stephen Nichols, Daniel G. Hyams, Brent Mitchell, Shane Sawyer, Lafayette K. Taylor, David L. Whitfield

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

Aerodynamic simulations were carried out for the Generic Conventional Model, a 1/8th scale tractor-trailer model, that was tested in the NASA Ames 7'×10' tunnel. The computed forces and pressure coefficients are compared to experiment for the zero as well as the ten degree yaw cases. DES versions of the one-equation Menter SAS and the two-equation k-ε/k-ω hybrid turbulence model are used in the simulations. Significant unsteadiness is observed in the zero degree case which prevented a symmetry plane option from being used. Overall forces as well as pressure distributions matched well for the zero degree case. For the ten degree case, the forces were in reasonable agreement while the pressure distributions indicated a need for tighter grid resolution as well as possibly advanced turbulence models.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
Pages13120-13132
Number of pages13
StatePublished - 2007
Externally publishedYes
Event45th AIAA Aerospace Sciences Meeting 2007 - Reno, NV, United States
Duration: Jan 8 2007Jan 11 2007

Publication series

NameCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
Volume19

Conference

Conference45th AIAA Aerospace Sciences Meeting 2007
Country/TerritoryUnited States
CityReno, NV
Period01/8/0701/11/07

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