Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Peter A. Dewey"'
Publikováno v:
Journal of Fluid Mechanics. 742:152-170
Experimental and computational results are presented on an aerofoil undergoing pitch oscillations in ground effect, that is, close to a solid boundary. The time-averaged thrust is found to increase monotonically as the mean position of the aerofoil a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::241b5ceff1b4f84a8027676ba136b067
https://doi.org/10.1017/jfm.2013.659
https://doi.org/10.1017/jfm.2013.659
Publikováno v:
Journal of Fluid Mechanics. 732:29-46
We present experimental results on the role of flexibility and aspect ratio in bio-inspired aquatic propulsion. Direct thrust and power measurements are used to determine the propulsive efficiency of flexible panels undergoing a leading-edge pitching
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35f41770ed2a7ac1c67704af62f24967
https://doi.org/10.1017/jfm.2013.384
https://doi.org/10.1017/jfm.2013.384
Publikováno v:
Journal of Fluid Mechanics. 708:329-348
A linear spatial stability analysis is performed on the velocity profiles measured in the wake of an actively flexible robotic elliptical fin to find the frequency of maximum spatial growth, that is, the hydrodynamic resonant frequency of the time-av
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98fcf25991bf4d069cab5e837c6a0296
https://doi.org/10.1017/jfm.2012.313
https://doi.org/10.1017/jfm.2012.313
Publikováno v:
Journal of Fluid Mechanics. 691:245-266
A mechanical representation of batoid-like propulsion using a flexible fin with an elliptical planform shape is used to study the hydrodynamics of undulatory propulsion. The wake is found to consist of a series of interconnected vortex rings, whereby
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16f85405d1464124f288bab34bcc254e
https://doi.org/10.1017/jfm.2011.472
https://doi.org/10.1017/jfm.2011.472
Publikováno v:
Marine Technology Society Journal. 45:110-118
Mobuliform swimmers are inspiring novel approaches to the design of underwater vehicles. These swimmers, exemplified by manta rays, present a model for new classes of efficient, highly maneuverable, autonomous undersea vehicles. To improve our unders
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89fb0551ee74ba675a937bec4074df94
https://doi.org/10.4031/mtsj.45.4.3
https://doi.org/10.4031/mtsj.45.4.3
Publikováno v:
Journal of Fluid Mechanics. 679:343-382
The flow over a pair of counter-rotating cylinders is investigated numerically and experimentally. It is demonstrated that it is possible to suppress unsteady vortex shedding for gap sizes from one to five cylinder diameters, at Reynolds numbers from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c699e13ae9bb1a9c3a9e32406df018ec
https://doi.org/10.1017/jfm.2011.134
https://doi.org/10.1017/jfm.2011.134
Publikováno v:
Fluid-Structure-Sound Interactions and Control ISBN: 9783642403705
Manta rays propel themselves by combining oscillating and undulating motions of flexible surfaces. We describe two experiments to study the effects of excitation and flexibility on the wake flowfield: experiments on undulating and flapping three-dime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f21102ad90e891826a681b989233fde5
https://doi.org/10.1007/978-3-642-40371-2_43
https://doi.org/10.1007/978-3-642-40371-2_43
Publikováno v:
Physics of Fluids. 26:051901
Experiments are reported on the behavior of two hydrofoils arranged in an in-line configuration as they undergo prescribed pitching motions over a wide range of phase lags and spacings between the foils. It is found that the thrust production and pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdcf01a855ab12fb27a57c2646ab7092
https://doi.org/10.1063/1.4872308
https://doi.org/10.1063/1.4872308
Publikováno v:
Physics of Fluids. 26:041903
Experimental and analytical results are presented on two identical bio-inspired hydrofoils oscillating in a side-by-side configuration. The time-averaged thrust production and power input to the fluid are found to depend on both the oscillation phase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61bf3939a6fdaccb229fbbcfd1a2f218
https://doi.org/10.1063/1.4871024
https://doi.org/10.1063/1.4871024
Publikováno v:
Physics of Fluids. 26:041905
We present the linear stability analysis of experimental measurements obtained from unsteady flexible pitching panels. The analysis establishes the connections among the wake dynamics, propulsor dynamics, and Froude efficiency in flexible unsteady pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac12d365651a590f7f78890b9c344036
https://doi.org/10.1063/1.4872221
https://doi.org/10.1063/1.4872221