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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/197491
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- Fiber Bragg grating tether used to measure drag forces in neutral buoyancy flow tank tests
- Wade, S. A.; Jolley, W.; Fouras, A.
- The drag exerted on neutrally buoyant tethered spheres in a flow tank was measured as a function of flow rate. A unique solution to the problem was achieved using an optical fiber including a Bragg grating sensor as part of the tether. Measurements of the strain on the tether taken at flow rates between 0.14 and 0.33 m/s, were used to determine drag forces for spheres with diameters ranging from 40 to 100 mm. Vortex-induced vibration was observed in tests performed at Reynolds numbers from 5×103 to 4.5×104. The drag coefficients for these tests were found to range from 0.51 to 0.77.
- Publication type
- Journal article
- Review of Scientific Instruments, Vol. 79, no. 6 (Jun 2008), article no. 065102
- Publication year
- FOR Code(s)
- 0299 Other Physical Sciences; 0304 Medicinal and Biomolecular Chemistry; 0915 Interdisciplinary Engineering
- Buoyancy; Drag forces; Fibre Bragg grating; Flow rates; Flow tanks
- American Institute of Physics
- Publisher URL
- Copyright © 2008 American Institute of Physics. Published version of this paper reproduced here with the kind permission of the publisher.
- Full text
- Peer reviewed