Results 81 to 90 of about 821,076 (254)

Exhaust jet wake and thrust characteristics of several nozzles designed for VTOL DOWNWASH suppression. Tests in and out of ground effect with 70 deg F and 1200 deg F nozzle discharge temperatures [PDF]

Jet wake degradation and thrust characteristics of exhaust nozzles designed for VTOL downwash suppression and fuselage and ground ...
Higgins, C. C., Kelly, D. P., Wainwright, T. W.   +2 more
core   +1 more source

A Scalable Data-Driven Surrogate Model for 3D Dynamic Wind Farm Wake Prediction Using Physics-Inspired Neural Networks and Wind Box Decomposition

Energies
Wake effects significantly reduce efficiency and increase structural loads in wind farms. Therefore, accurate and computationally efficient models are crucial for wind farm layout optimization and operational control.
Qiuyu Lu, Yuqi Cao, Pingping Xie, Ying Chen, Yingming Lin   +4 more
doaj   +1 more source

Enhancing Iced 8-Bundled Conductor Galloping Prediction for UHV Transmission Line Infrastructure Through High-Fidelity Aerodynamic Modeling

Infrastructures
Icing on eight-bundled conductors can significantly alter their aerodynamic behavior, potentially leading to structural instabilities such as galloping.
Bolin Zhong, Mengqi Cai, Maoming Hu, Jiahao Sun   +3 more
doaj   +1 more source

Finite difference modeling of rotor flows including wake effects [PDF]

Rotary wing finite difference methods are investigated. The main concern is the specification of boundary conditions to properly account for the effect of the wake on the blade.
Caradonna, F. X., Desopper, A., Tung, C.
core   +1 more source

Predicting the wake structure of the HART II rotor using the vorticity transport model [PDF]

, 2008
Brown’s Vorticity Transport Model has been used to predict the wake structure and resultant blade loading of the rotor that was studied during the HART II experimental programme. The descending flight condition of the experiment yields significant high-
Brown, R.E., Kelly, M.E.
core   +1 more source

Combined Effect of ABL Profile and Rotation in Wind Turbine Wakes: New Three-Dimensional Wake Model

Energies
The combination of the atmospheric boundary layer (ABL) profile and the rotation of wind turbine wakes leads to lateral and vertical displacements of the wake center and to changes in the wake diameter, which are not taken into account by conventional ...
José A. Martinez-Trespalacios, Dimas A. Barile, John L. Millan-Gandara, Jairo Useche, Alejandro D. Otero   +4 more
doaj   +1 more source

Acoustic and aerodynamic study of a pusher-propeller aircraft model [PDF]

An aerodynamic and acoustic study was made of a pusher-propeller aircraft model in the NASA-Ames 7 x 10 ft Wind Tunnel. The test section was changed to operate as an open jet.
Horne, W. Clifton, Soderman, Paul T.
core   +1 more source

Dataset For Journal Jfs: "Near-Wake Characteristics Of Rigid And Membrane Wings In Ground Effect" 2018 By R.Bleischwitz, R.De Kat, B.Ganapathisubramani

, 2018
Robert Bleischwitz, Roeland de Kat, Bharathram Ganapathisubramani   +2 more
openalex   +3 more sources

The disappearance of viscous and laminar wakes in complex flows [PDF]

, 2002
The singular effects of steady large-scale external strain on the viscous wake generated by a rigid body and the overall flow field are analysed. In an accelerating flow strained at a positive rate, the vorticity field is annihilated owing to positive ...
Eames, I, Hunt, JCR
core  

Wake-mediated propulsion of an upstream particle in two-dimensional plasma crystals

, 2017
The wake-mediated propulsion of an "extra" particle in a channel of two neighboring rows of a two-dimensional plasma crystal, observed experimentally by Du et al. [Phys. Rev. E 89, 021101(R) (2014)], is explained in simulations and theory.
Laut, Ingo, Morfill, Gregor E., Nosenko, Vladimir, Räth, Christoph, Thomas, Hubertus M., Zhdanov, Sergey K.   +5 more
core   +1 more source