Directional sensitivity of skin friction measurements using nematic liquid crystal
Article
Article Title | Directional sensitivity of skin friction measurements using nematic liquid crystal |
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ERA Journal ID | 35105 |
Article Category | Article |
Authors | Buttsworth, D. R. (Author), Elston, S. J. (Author) and Jones, Terry V. (Author) |
Journal Title | Measurement Science and Technology |
Journal Citation | 9 (11), pp. 1856-1865 |
Number of Pages | 10 |
Year | 1998 |
Place of Publication | Bristol, United Kingdom |
ISSN | 0957-0233 |
1361-6501 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0957-0233/9/11/011 |
Abstract | The directional sensitivity of a new liquid crystal technique for aerodynamic skin friction measurement has been assessed. Experiments were performed using a turntable device installed in a laminar flow duct. Nematic liquid crystal was deposited onto the centre of the turntable. Various initial liquid crystal layer orientations (turntable angles) and magnitudes of applied skin friction were investigated. The dynamic and steady state response was measured using the transmission of polarized monochromatic light. Steady state predictions based on a simple director model are shown to be in reasonable agreement with the experimental results. The current results demonstrate the potential of the nematic technique in skin friction vector measurement applications. |
Keywords | skin friction; nematic liquid crystal; aerodynamics; diagnostics |
ANZSRC Field of Research 2020 | 401201. Aerodynamics (excl. hypersonic aerodynamics) |
401204. Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics) | |
510804. Quantum optics and quantum optomechanics | |
Public Notes | ® 1998 lOP Publishing Ltd. Published version deposited in accordance with the copyright policy of the publisher. |
Byline Affiliations | University of Oxford, United Kingdom |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q05xy/directional-sensitivity-of-skin-friction-measurements-using-nematic-liquid-crystal
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