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Development of a wind tunnel force balance and related practical exercise manual

Barden, Gethin (2014). Development of a wind tunnel force balance and related practical exercise manual. Bachelor of Engineering (4th Year Project) Thesis, Charles Darwin University.

Document type: Thesis
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Author Barden, Gethin
Title Development of a wind tunnel force balance and related practical exercise manual
Institution Charles Darwin University
Publication Date 2014
Thesis Type Bachelor of Engineering (4th Year Project)
Subjects 0906 - Electrical and Electronic Engineering
Abstract A two-component force balance has been constructed and installed in the Charles Darwin University (CDU) wind tunnel to increase the capability of experimental investigation into fluid flow around submerged bodies. The balance consists of a series of struts that transfer forces to two load cells orientated perpendicularly in order to separately measure horizontal (drag) and vertical (lift) forces. Various attachments have been manufactured for various model types. The mechanism has been tested over a range of air velocities from 0-40m/s with the various attachments and suitable models. Comparison of the experimental results with the results of theoretical modelling using a CFD software package revealed an excellent agreement between theoretical and experimental interpretation of fluid forces. A detailed practical exercise manual was developed to assist future students and researchers in conducting experiments involving investigation of fluid flow over submerged bodies. One of the major practical benefits resulted from this project is that the created setup allows for the direct measurement of fluid forces which was not available previously.
Keyword wind tunnel
two-component force balance
load cell
lift
drag
pressure distribution
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Created: Tue, 12 Aug 2014, 10:47:41 CST