Zobrazeno 1 - 10
of 2 110
pro vyhledávání: '"Unsteady Aerodynamics"'
Publikováno v:
Wind Energy, Vol 27, Iss 9, Pp 922-935 (2024)
Abstract In view of the fact that dynamic stall models in the wind energy industry such as ONERA model, Beddoes–Leishman model, and Snel model are mostly semi‐empirical models, and the determination of empirical time constants has a great influen
Externí odkaz:
https://doaj.org/article/62fcb2496afa4cbe932988ed8701dada
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-23 (2024)
Abstract Wind and gusts can significantly impact the performance of rotors and turbines. The transient behavior of the rotor should be carefully examined to account for these effects. This paper investigates the unsteady aerodynamic characteristics o
Externí odkaz:
https://doaj.org/article/c805ec42b1cc43b9a08cc7dee145253d
Publikováno v:
Hangkong bingqi, Vol 30, Iss 5, Pp 127-134 (2023)
Folding wings are flight device structural components that require small space for ammunition seeking, facilitating the storage and transportation of launch boxes (barrels), greatly saving ammunition storage and transportation space, and increasing t
Externí odkaz:
https://doaj.org/article/2065c2c343cb4d3b9527765d33fa2e21
Publikováno v:
Aerospace, Vol 11, Iss 9, p 745 (2024)
A time-stepping, lifting-line solution algorithm for the prediction of the unsteady aerodynamics of morphing wings is presented. The velocity induced by the wake vorticity is determined through a free-wake vortex-lattice model, whereas the Küssner a
Externí odkaz:
https://doaj.org/article/d176c950b0fc4266bd8ac483515a5575
Autor:
Aravind SEENI
Publikováno v:
INCAS Bulletin, Vol 15, Iss 3, Pp 83-97 (2023)
The objective of this work is to analyze the aerodynamic response of SARAS transport aircraft to a gust condition. A rigid airframe is assumed. The increments in load factors due to vertical gust are calculated for gust gradient distances varying fro
Externí odkaz:
https://doaj.org/article/2f77768cfe814109a12325d2a024ac78
Autor:
Anmar H. Ali
Publikováno v:
Journal of Engineering, Vol 14, Iss 04 (2024)
A numerical method is developed for calculation of the wake geometry and aerodynamic forces on two-dimensional airfoil under going an arbitrary unsteady motion in an inviscid incompressible flow (panel method). The method is applied to sudden change
Externí odkaz:
https://doaj.org/article/177196f25ab74155ad630df745ea853e
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 9, Iss 2, p 21 (2024)
The deposition of combustion residues in the nozzle ring (NR) of a turbocharger turbine stage changes the NR geometry significantly in a random manner. The resultant complex and highly asymmetric geometry induces low engine order (LEO) excitation, wh
Externí odkaz:
https://doaj.org/article/f6f7cc257ac142bcb6063ad9f81fa408
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 9, Iss 2, p 15 (2024)
Unsteady component interaction represents a crucial topic in turbomachinery design and analysis. Combustor/turbine interaction is one of the most widely studied topics both using experimental and numerical methods due to the risk of failure of high-p
Externí odkaz:
https://doaj.org/article/711bf10fe6f74a088c570adc36727c82
Publikováno v:
Vibration, Vol 6, Iss 1, Pp 29-44 (2023)
This work discusses the experimental challenges and processing of unsteady experiments for a pitching wing in the low-speed wind tunnel of the Vrije Universiteit Brussel. The setup used for unsteady experiments consisted of two independent devices: (
Externí odkaz:
https://doaj.org/article/9c0e2d279b964556ba4c46e779da84d6
Publikováno v:
Wind Energy, Vol 26, Iss 1, Pp 98-125 (2023)
Abstract Growing horizontal axis wind turbines are increasingly exposed to significant sources of unsteadiness, such as tower shadowing, yawed or waked conditions and environmental effects. Due to increased dimensions, the use of steady tabulated air
Externí odkaz:
https://doaj.org/article/165cf8365c6a47878598317a55f9f69b