Results 41 to 50 of about 286,563 (197)

LES-based Study of the Roughness Effects on the Wake of a Circular Cylinder from Subcritical to Transcritical Reynolds Numbers [PDF]

, 2017
This paper investigates the effects of surface roughness on the flow past a circular cylinder at subcritical to transcritical Reynolds numbers. Large eddy simulations of the flow for sand grain roughness of size k/D = 0.02 are performed (D is the ...
A Ekmekci, A Leonard, A Roshko, A Scotti, AA Townsend, Assensi Oliva, B Cantwell, C Norberg, CHK Williamson, D Aljure, E Achenbach, E Achenbach, E Szechenyi, F Nicoud, FX Trias, FX Trias, G Buresti, G Schewe, G West, H Mansy, H Schlichting, I Rodríguez, Ivette Rodriguez, J Jimenez, J Yuan, J Yuan, J Yuan, JLD Ribeiro, JLD Ribeiro, Jorge Chiva, JP Batham, JS Humphreys, KA Flack, L Jofre, MR Raupach, O Güven, O Lehmkuhl, O Lehmkuhl, Oriol Lehmkuhl, PW Bearman, R Borrell, R Borrell, R Dutta, Ricard Borrell, S Dong, S Rajagopalan, S Yarusevych, SB Pope, SJ Lee, SJ Quintavalla, T Adachi, U Ünal, Ugo Piomelli, W Shih, W Yeung, X Ma, Y Nakamura   +56 more
core   +5 more sources

Experimental Aerodynamics of a Small Fixed-Wing Unmanned Aerial Vehicle Coated with Bio-Inspired Microfibers Under Static and Dynamic Stall

Aerospace
A passive flow control technique in the form of microfiber coatings with a diverging pillar cross-section area was applied to the wing suction surface of a small tailless unmanned aerial vehicle (UAV). The coatings are inspired from ‘gecko feet’ surfaces,
Dioser Santos, Guilherme D. Fernandes, Ali Doosttalab, Victor Maldonado   +3 more
doaj   +1 more source

Uranium isotopic separation by aerodynamic methods. Final report. [Jet membrane and velocity slip processes]

, 1979
The jet membrane is a new aerodynamic setaration concept for enriching uranium. The project described in this report had two objectives: (1) to demonstrate experimentally that uranium isotopes can be separated using the jet membrane concept, and (2) to make an assessment of the economic viability of the jet membrane in relation to competing processes ...
G.T. Green, J.B. Anderson, P. Davidovitz, J.W. Brook, V.S. Calia   +4 more
openaire   +4 more sources

The transfer of fibres in the carding machine [PDF]

, 2005
The problem of understanding the transfer of fibres between carding-machine surfaces is addressed by considering the movement of a single fibre in an airflow.
A. Dehghani, A. Dehghani, A.E.H. Love, A.S. Abhiraman, C.A. Lawrence, E.J. Hinch, G.I. Taylor, G.K. Batchelor, H. Ockendon, H.M. Gutierrez, J.P. Rust, L.D. Wibberly, M. E. M. Lee, M.A. Jones, M.E.M. Lee, R.G. Cox, W.E. Morton, Y.A. Baturin   +17 more
core   +1 more source

Aerodynamic characteristics of general aviation at high angle of attack with the propeller slip stream.

Journal of the Japan Society for Aeronautical and Space Sciences, 1985
The aerodynamic characteristics of the FA-300 business aircraft at high angle of attack with the propeller stream are described. The FA-300 offers two types, FA-300-700 for 340 HP, and -710 for 450 Hp of the engine. The effects of the propeller slipstream on the high angle of the attack are discussed.
Norihisa Matsuo, Shogo Hirano
openaire   +3 more sources

CFD Modeling of a Realistic Turbofan Blade for Noise Prediction. Part 1: Aerodynamics

, 2019
Various aspects of the numerical modeling of a scale-model turbofan blade are investigated for the purpose of future noise assessment. The fan geometry considered is the baseline configuration of the “Fan Noise Source Diagnostic Test” (SDT) experimental ...
C. Arroyo, P. Kholodov, M. Sanjosé, S. Moreau   +3 more
semanticscholar   +1 more source

A Review and Prototype Proposal for a 3 m Hybrid Wind–PV Rotor with Flat Blades and a Peripheral Ring

Applied Sciences
This paper presents a literature review of low-power hybrid wind–photovoltaic (PV) systems and introduces a 3 m diameter prototype rotor featuring twelve PV-coated pivoting blades stiffened by a peripheral rim.
George Daniel Chiriță, Viviana Filip, Alexis Daniel Negrea, Dragoș Vladimir Tătaru   +3 more
doaj   +1 more source

Some consequences of non-local-equilibrium in hypersonic aerodynamic flows [PDF]

, 2005
In simulating high-speed, high-altitude aerodynamics it is important to be able to capture physical phenomena that are due to the non-local-equilibrium nature of the rarefied gas flow (this is in addition to any effects due to dissociation, ionisation ...
Greenshields, Christopher, Reese, Jason
core  

Study of Building Aerodynamics for Designing Natural Ventilation System

International Journal of Engineering & Technology, 2018
Study of building aerodynamics is an important part of building design because aerodynamic factor helps us to design considering wind velocity. If building has not been designed with this factor, wind may damage external walls of the building.
Anuj Gupta, Bhavyanidhi Vats, Anwer R. Ahmed, S. Verma, Vipul Kumar Sharma   +4 more
semanticscholar   +1 more source

Acoustic Assessment of Twin-engined Turboprop Layout [PDF]

, 2018
No abstract ...
Barakos, George N., Brown, Nicholas, Chirico, Giulia   +2 more
core