Zobrazeno 1 - 10
of 142
pro vyhledávání: '"wing tip vortex"'
Autor:
Marcel ILIE, Augustin SEMENESCU
Publikováno v:
Annals: Series on engineering sciences (Academy of Romanian Scientists), Vol 15, Iss 1, Pp 138-149 (2023)
Aircraft drag reduction has been of interest to aerospace industry for long time. Therefore, in the past decade different flow control techniques have been used such as active and passive flow control techniques. Winglet design has been explored in t
Externí odkaz:
https://doaj.org/article/7766a3b98b6c4d06bce5e5d6165a9493
Akademický článek
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Publikováno v:
Hangkong bingqi, Vol 29, Iss 4, Pp 70-76 (2022)
For the separation problem at small and medium angles of attack, in the early stage of DDES (Delayed Detached Eddy Simulation) method, it takes some time for the flow separation region to develop, and usually delays the switch from RANS mode to LES m
Externí odkaz:
https://doaj.org/article/6700d2900ad94b968ce45a77b8526376
Autor:
Yoshitsugu NAKA, Masataka HIMEDA
Publikováno v:
Journal of Fluid Science and Technology, Vol 15, Iss 3, Pp JFST0018-JFST0018 (2020)
External forcing on a wing-tip vortex can affect its instability, and therefore an optimal perturbation can improve the aerodynamic performance of the wing. The present study examined the unsteadiness of the wing-tip vortex under periodic wing-tip vi
Externí odkaz:
https://doaj.org/article/bd19d56be53843acbeaea355712040d9
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 237:1557-1570
This paper focuses on the aerodynamic analysis and drag decomposition of an unpowered, low aspect ratio wing, using a far-field, exergy-based method. As opposed to traditional drag accounting methods, exergy balance provides insights into the amount
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b000d5eeda77c0b8f8a64d9abf53bd5
https://doi.org/10.1177/09544100221132649
https://doi.org/10.1177/09544100221132649
Publikováno v:
International Journal of Naval Architecture and Ocean Engineering, Vol 9, Iss 1, Pp 55-65 (2017)
Underwater torpedo has control fin with very low aspect ratio due to launching from limited size of cylindrical torpedo tube. If the aspect ratio of control fin of underwater vehicle is very low three-dimensional flow around control fin largely reduc
Externí odkaz:
https://doaj.org/article/eefd1227a4d1484c87ba40ceb884bda3
Publikováno v:
Applied Sciences, Vol 10, Iss 17, p 5897 (2020)
In this study, a numerical methodology is developed to investigate the tip-vortex cavitation of NACA16-020 wings and their flow noise. The numerical method consists of a sequential one-way coupled application of Eulerian and Lagrangian approaches. Fi
Externí odkaz:
https://doaj.org/article/c24146caa4aa4a578ac6ab7a5dd8b942
Akademický článek
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Publikováno v:
Journal of Fluid Science and Technology, Vol 6, Iss 6, Pp 976-988 (2011)
Influence of the flow induced by dielectric barrier discharge (DBD) plasma actuators on the wing-tip vortex is investigated numerically and experimentally. The plasma actuators are installed on the suction side of the NACA0012 airfoil and operated in
Externí odkaz:
https://doaj.org/article/37d751c435e74c5299a6d171586cdf89
Publikováno v:
Journal of Fluid Science and Technology, Vol 4, Iss 1, Pp 107-115 (2009)
Simultaneous measurements of fluctuating velocity and pressure have been conducted in the near field of a wing-tip vortex trailing from a NACA0012 half wing. In the vortex core, the time-averaged streamwise velocity shows a wake-like profile which ex
Externí odkaz:
https://doaj.org/article/f44bf8dcf8a34b79bca9e9dd25adf005