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Old 01-08-2018, 11:51 AM   #1 (permalink)
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Cd estimate for open-wheel dragster?

i was searching for an expected drag coeff for the typical open-wheeled style dragster such as shown here, has anyone seen measured or calculated Cd for this? Body panels would obviously be added, this is just the rolling chassis.

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Old 01-08-2018, 03:22 PM   #2 (permalink)
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This seems to focus on the tires and wing, rather than overall drag:
TOP-FUEL DRAGSTER WING DESIGN USING CFD AND ITS INFLUENCE ON VEHICLE DYNAMIC PERFORMANCE [PDF]

A comparison between student's work with no numeric result:
Using a Wind Tunnel to Measure the Drag Coefficient with Students Designed Dragster Cars
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Old 01-13-2018, 12:38 PM   #3 (permalink)
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dragster Cd

Quote:
Originally Posted by kennybobby View Post
i was searching for an expected drag coeff for the typical open-wheeled style dragster such as shown here, has anyone seen measured or calculated Cd for this? Body panels would obviously be added, this is just the rolling chassis.
You'd be looking in the Cd 0.9 range.If you put wings on it,she'd go over Cd 1.0.
In 1987,the Arrivet Brothers,of Southern California were experimenting with a fully-enclosed,streamlined NHRA Top-Fuel dragster.She measured Cd 0.20 @ zero-degrees yaw,and Cd 0.18 @ 12-degrees yaw.

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