Hypersonic Drop-Tests of a Sphere: CFD Comparison to Experimental Results
Paper
Paper/Presentation Title | Hypersonic Drop-Tests of a Sphere: CFD Comparison to Experimental Results |
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Presentation Type | Paper |
Authors | Choudhury, R., Doig, G., Neely, A. and Barber, T. |
Journal or Proceedings Title | Proceedings of the 17th Australasian Fluid Mechanics Conference (AFMC 2010) |
Journal Citation | pp. 465 - 468 |
Page Range | 465-468 |
Number of Pages | 4 |
Year | 2010 |
Place of Publication | New Zealand |
ISBN | 9781617829130 |
Conference/Event | 17th Australasian Fluid Mechanics Conference (AFMC 2010) |
Event Details | 17th Australasian Fluid Mechanics Conference (AFMC 2010) Parent Australasian Fluid Mechanics Conference Delivery In person Event Date 05 to end of 09 Dec 2010 Event Location Auckland, New Zealand |
Abstract | Drop tests were performed in the T-ADFA Shock Tunnel in Canberra to determine the aerodynamic coefficients of a 37.5mm diameter polystyrene sphere experiencing short-duration (approx. 1 millisecond) Mach 10 flow. The aerodynamic forces acting on the sphere were determined from a trajectory analysis based on high-speed schlieren video footage. In order to gain a clearer understanding of the flow-field generated around the models during the tests, transient, moving-mesh computational fluid dynamics (CFD) has been used to perform simulations which approximate the conditions experienced in the shock tunnel as closely as possible. For the assumption of steady free-stream conditions the simulations predicted a sphere displacement of 13mm during the nominal 1ms of test time. The numerical displacement predictions were in good agreement with those obtained from the experiment. |
Keywords | Aerodynamics; Computational fluid dynamics; Computer simulation; Drops; Polystyrenes |
Public Notes | There are no files associated with this item. |
Byline Affiliations | University of New South Wales |
Library Services |
https://research.usq.edu.au/item/wv1v4/hypersonic-drop-tests-of-a-sphere-cfd-comparison-to-experimental-results
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