Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Ramon Fernandez-Feria"'
Publikováno v:
Aerospace, Vol 9, Iss 10, p 617 (2022)
A new forward-flight model for bird-like ornithopters is presented. The flight dynamics model uses results from potential, unsteady aerodynamics to characterize the forces generated by the flapping wings, including the effects of the dynamic variable
Externí odkaz:
https://doaj.org/article/cd79e2acead04ab8b7da1231cf630ce0
The cruising velocity of animals, or robotic vehicles, that use flapping wings or fins to propel themselves is not constant but oscillates around a mean value with an amplitude usually much smaller than the mean, and a frequency that typically double
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2659::a7b4a044ae75add0c9163d0651ec0ccd
https://zenodo.org/record/8113469
https://zenodo.org/record/8113469
Publikováno v:
AIAA Journal. 60:783-797
A general formulation for the fluid–structure interaction of an airfoil undergoing prescribed pitching and passive heave and deformation about an arbitrary axis is given in the linearized potential...
Publikováno v:
International Journal of Numerical Methods for Heat & Fluid Flow. 32:1602-1617
Purpose This paper aims to analyze the propulsive performance of small-amplitude pitching foils at very high frequencies with double objectives: to find out scaling laws for the time-averaged thrust and propulsive efficiency at very high frequencies;
Publikováno v:
AIAA Journal. 58:37-52
General expressions are derived in this paper for the aerodynamic force and moment on an arbitrary set of pitching and heaving foils from the vortical impulse theory in the limit of linearized pote...
Publikováno v:
International Journal of Numerical Methods for Heat & Fluid Flow. 29:4013-4033
PurposeThis paper aims to consider the thrust force generated by two plunging and pitching plates in a tandem configuration in forward flight to find out the configuration that maximizes the propulsive efficiency with high-enough time-averaged lift f
Publikováno v:
Physical Review Fluids. 6
Analytical expressions are obtained for the propulsion and the wake structure of tandem flapping foils with chordwise deflection, explaining the propulsive performance improvement in relation to single foils or rigid-foil counterparts for certain com
Publikováno v:
RIUMA. Repositorio Institucional de la Universidad de Málaga
instname
instname
The propulsive performance of a flexible foil with prescribed pitching and heaving motions about any pivot point location and passive chordwise flexural deflection is analysed within the framework of the linear potential flow theory and the Euler–B
Publikováno v:
RIUMA. Repositorio Institucional de la Universidad de Málaga
instname
instname
The fluid–structure interaction of a flexible plunging hydrofoil immersed in a current is solved numerically to analyze its propulsion enhancement due to flexibility at Reynolds number 10 000. After validating with available experimental data, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1bb719e558b82978e5dfdc920420953
https://doi.org/10.1016/j.oceaneng.2021.109331
https://doi.org/10.1016/j.oceaneng.2021.109331
Publikováno v:
RIUMA. Repositorio Institucional de la Universidad de Málaga
instname
instname
The fluid–structure interaction in a foil undergoing prescribed heave with passive pitching and flexibility about any pivot is formulated in the linear inviscid limit using a quartic approximation for the deflection. The resulting system of three a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df663c183e3eaa939e804b973fab41d0
https://doi.org/10.1016/j.jfluidstructs.2021.103255
https://doi.org/10.1016/j.jfluidstructs.2021.103255