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Summary & Details

Efficiencies of an Air-Dam Spoiler in Wind Tunnel Tests and Coast-Down Tests

Delivery: Available on this site

Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20115379

Paper/Info type: Proceedings (Spring)

No.67-11

Pages: 13-16(Total 4 p)

Date of publication: May 2011

Publisher: JSAE

Language: English

Detailed Information

Author(E)	1) Daichi Katoh, 2) Yoshimitsu Hashizume
Affiliation(E)	1) SUZUKI MOTOR, 2) Affiliation
Abstract(E)	The aerodynamic performance of new vehicles is commonly determined using computational fluid dynamics and wind tunnel tests. The final assessment is carried out by actual running tests. In particular, ideas regarding fuel consumption improvement that relate to components for the reduction of the coefficient of drag (CD) value are evaluated by coast-down tests. However, a difference often exists between the component’s efficiency between wind tunnel tests and coast-down tests. Therefore, we focused on the efficiency of an air-dam spoiler in reducing CD values. A comparison was made between the aerodynamic effect of the air-dam spoiler in wind tunnel and coast-down tests in terms of the CD value and the wake structure behind the vehicle.

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