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Summary & Details

A Detailed Aerodynamics Investigation of Three Variants of the Generic Truck Utility

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Format: PDF

Price: Non-members (tax incl.)：￥6,600 Members (tax incl.)：￥5,280

Paper/Info type: SAE Paper

No.2021-01-0950

Pages: 1-9(Total 9 p)

Date of publication: Apr 2021

Publisher: SAE International

Language: English

Event: SAE WCX Digital Summit 2021

Detailed Information

Author(E)	1) Kevin Howard, 2) Paul Norman, 3) Sudesh Woodiga, 4) Neil Lewington, 5) Burkhard Hupertz
Affiliation(E)	1) Ford Motor Company, 2) Ford Motor Company, 4) Ford Motor Co of Australia Ltd, 5) Ford Motor Company
Abstract(E)	Three pickup truck variants of the Generic Truck Utility (GTU) are evaluated and compared using wind tunnel test data and computational fluid dynamics (CFD) simulations. The configurations analyzed are the short cab/long box, medium cab/medium box, and long cab/short box geometries, which all share a common vehicle length and wheelbase. Both cab and box length are known to influence the total bluff body drag through the interaction of the cab wake in the pickup box with the total vehicle wake, and the GTU provides an excellent test box to investigate the details of these interactions. Experimental testing was conducted at the WindShear wind tunnel on a full-scale GTU model, while transient CFD simulations were carried out with IconCFD®, an open-source based solver. Experimental and CFD results are used to describe the general flow field around the vehicle, and a comparison is made with the wind tunnel integral force data as well as centerline pressure tap data. Further details and changes in the flow field due to the interaction of the chin spoiler with different cab and box length combinations are also evaluated, expanding upon previous work completed by Larson and Woodiga 2018.

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