Results 41 to 50 of about 525,947 (205)

Rotor-Obstacle Aerodynamic Interaction in Hovering Flight: An Experimental Survey [PDF]

, 2016
Despite the presence of a fair number of numerical and experimental works on the rotor-obstacle interaction, a systematic study of the aerodynamic phenomena involved is lacking.
Giuni, Michea, Green, Richard B., Zagaglia, Daniele   +2 more
core  

Bulk-cusp microstructure for controllable multi-directional liquid spreading

Nature Communications
Controllable wetting of liquid on solid surface is meaningful for advanced science and engineering. Current researches about controllable liquid spreading are generally limited to unidirectional modes, while achieving multi-directional spreading on ...
Songjie Dai, Hui Zhang, Yang Liu, Fenghao Yi, Kaibin Shi, Guangneng Dong   +5 more
doaj   +1 more source

Gallium-based liquid metal as a special lubricant: A review

Friction
Gallium-based liquid metal (GLM) is an amorphous metal that remains liquid at room temperature. It has important characteristics, such as high temperature resistance, high thermal conductivity, good electrical conductivity, favorable radiation resistance,
Songjie Dai, Hui Zhang, Yang Liu, Shili Guo, Jiawei Chen, Baotong Li, Guangneng Dong   +6 more
doaj   +1 more source

Rotor-stator Mixers

Chemical Engineering Transactions, 2011
Abstract preview not available - see full-text PDF article.
Thomas Rodgers, Michael Cooke, Steven Hall, Andrzej Pacek, Adam Kowalski   +4 more
openaire   +2 more sources

Autonomous rotor heat engine [PDF]

Physical Review E, 2017
13 pages, 8 figures; added a thermodynamic analysis of the engine's ...
Roulet, Alexandre, Nimmrichter, Stefan, Arrazola, Juan Miguel, Seah, Stella, Scarani, Valerio   +4 more
openaire   +3 more sources

Investigation on Sealing Performance and Power Consumption of a Novel Centrifugal Pump Type Oil Flinger for Turbocharger

IEEE Access, 2021
Energy efficient conversion and saving technologies have increasingly become areas of fierce competition among countries all over the world. As a vehicle power multiplier, the turbocharger advances the power output of the engine, but also increases the ...
Ke Yan, Fei Chen, Zhiqiang Guo, Yongsheng Zhu   +3 more
doaj   +1 more source

The use of active controls to augment rotor/fuselage stability [PDF]

, 1985
The use of active blade pitch control to increase helicopter rotor/body damping is studied. Control is introduced through a conventional nonrotating swashplate. State variable feedback of rotor and body states is used.
Straub, F. K., Warmbrodt, W.
core   +1 more source

Tribology in Natural Sand Dust Environment

Tribology Online, 2008
The tribological problem in natural sand dust environment was proposed and an equipment for simulating the natural sand dust environment based on Multi-Venturi structure was introduced for studying the tribological problem.
Dongfeng Diao, Tonghai Wu
doaj   +1 more source

Lifting surface theory for a helicopter rotor in forward flight [PDF]

, 1984
A lifting surface theory was developed for a helicopter rotor in forward flight for compressible and incompressible flow. The method utilizes the concept of the linearized acceleration potential and makes use of the vortex lattice procedure. Calculations
Runyan, H. L., Tai, H.
core   +2 more sources

Orbits of rotor-router operation and stationary distribution of random walks on directed graphs

, 2015
The rotor-router model is a popular deterministic analogue of random walk. In this paper we prove that all orbits of the rotor-router operation have the same size on a strongly connected directed graph (digraph) and give a formula for the size.
Van Pham, Trung
core   +1 more source