DESIGN AND DEVELOPMENT OF A LOW-SPEED, LOW-FORCE WIND TUNNEL DATA ACQUISITION SYSTEM WITH AN APPLICATION TO BICYCLE FRONT FORK SPACING
This thesis encompassed the design, development, and application of a low-speed, low-force data acquisition system for the AIT 5-ft wind tunnel. The new data acquisition system was designed and developed to measure approximately 0.045 N (about 0.01 lbr) at nearly 64.4 km/h (40 mph). Verification of the capability was obtained through testing of a cylindrical model. As part of a technology transition program with Wright Laboratory, this new system was used to investigate bicycle front fork blade spacing in order to determine the optimal spacing for a minimum drag. As for the minimum drag of a bicycle with an adjustable-width front fork, the spacing should be kept to a minimum. The wind tunnel was deemed to have sufficiently smooth and steady flow for conducting low-speed research at or above 29 km/h (18 mph), the minimum tunnel velocity using the rear set of motors with the flow straightener positioned directly in front of the inlet.
Air Force Institute of TechnologyWright-Patterson Air Force Base
Dayton, OH United States 45433
- Elledge, A W
- Publication Date: 1994-12
- Pagination: 80 p.
- TRT Terms: Bicycling; Data collection; Drag factor (Chemistry); Technology transfer; Traffic safety; Wind tunnels
- Uncontrolled Terms: Bicycle safety
- Old TRIS Terms: Drag factor
- Subject Areas: Education and Training; Highways; Pedestrians and Bicyclists; Vehicles and Equipment; I95: Vehicle Inspection;
- Accession Number: 00716397
- Record Type: Publication
- Report/Paper Numbers: AFIT-GAE-ENY-94D-21
- Files: TRIS
- Created Date: Feb 22 1996 12:00AM