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Efficient foil propulsion through vortex control
Abstract
We investigate the problem of a heaving and pitching hydrofoil in an inflow that consists of a uniform velocity field and a staggered array of vortices. The foil can exploit the energy in such a Karman vortex street for efficient propulsion of animals or submarines. Through a two-dimensional inviscid analysis, we find that the phase between foil motion and the arrival of inflow vortices is a critical parameter. Everything else being equal, the highest efficiency is seen when this phase is such that the foil moves in close proximity to the oncoming vortices. Different modes of vortex interaction in the wake results from a variation in this phase, and we show that the flow downstream of the foil is related to the foil input power.
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Citations
Cited by
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Liao, J. C., Beal, D. N., Lauder, G. V., & Triantafyllou, M. S. (2003) · Journal of Experimental Biology · doi:10.1242/jeb.00209 · Cited by 509
Self-citationReview of Experimental Work in Biomimetic Foils
Triantafyllou, M. S., Techet, A. H., & Hover, F. S. (2004) · IEEE Journal of Oceanic Engineering · doi:10.1109/joe.2004.833216 · Cited by 448
Self-citationExperimental and Computational Investigation of the Knoller-Betz Effect
Jones, K. D., Dohring, C. M., & Platzer, M. F. (1998) · AIAA Journal · doi:10.2514/2.505 · Cited by 428
Passive propulsion in vortex wakes
BEAL, D. N., HOVER, F. S., TRIANTAFYLLOU, M. S., LIAO, J. C., & LAUDER, G. V. (2006) · Journal of Fluid Mechanics · doi:10.1017/s0022112005007925 · Cited by 421
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Metadata
- Authors
- Streitlien, K., Triantafyllou, G. S., & Triantafyllou, M. S.
- Venue
- AIAA Journal
- Published
- 1996-11
- Volume
- 34
- Issue
- 11
- Pages
- 2315-2319
- ISSN
- 0001-1452 (ISSN-L)
- 1533-385X
- OpenAlex
- W2166995402
- Cited by
- 205
- References
- 0
- FWCI
- 11.51
- Type
- journal article
- Language
- en
- Open access
- closed
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- Streitlien, K., Triantafyllou, G. S., & Triantafyllou, M. S. (1996). Efficient foil propulsion through vortex control. AIAA Journal. https://doi.org/10.2514/3.13396
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