Results 1 to 10 of about 2,932 (104)

Experimental investigation on effect of partial flexibility at low aspect ratio airfoil - Part II: Installation both on suction and pressure surface [PDF]

open access: yesEPJ Web of Conferences, 2022
In this experimental study, flow over NACA 4412 airfoil with flexible membrane mounted both on suction surface and pressure surface was investigated at Reynolds number of 5x104 and different angles of attack.
Koca Kemal   +2 more
doaj   +1 more source

Experimental investigation on effect of partial flexibility at low aspect ratio airfoil – Part I: Installation on suction surface [PDF]

open access: yesEPJ Web of Conferences, 2022
Effects of flexible membrane mounted over suction surface of NACA 4412 airfoil were experimentally investigated at Reynolds number of 5x104 and low aspect ratio (AR=1) in this paper.
Genç Mustafa Serdar   +2 more
doaj   +1 more source

A study on separation control mechanisms of tandemly arranged wing with linear leading edge and leading edge protuberance

open access: yesNihon Kikai Gakkai ronbunshu, 2022
A study on separation control mechanisms of tandemly arranged wing with linear leading edge (LLE) and leading edge protuberance (LEP) in low Reynolds number was conducted. In this study, to investigate the separation control mechanism, we carried out the
Ayami UEKI   +4 more
doaj   +1 more source

Not all screens are created equal: examination of surface features and other physical properties of commonly used screen materials for smoking drugs

open access: yesHarm Reduction Journal, 2023
Background Brass screens are considered an essential part of the safer drug smoking/inhalation supplies and are widely distributed by harm reduction programs in Canada.
Bradley J. Diak   +3 more
doaj   +1 more source

Wind-Tunnel Experiments on the Interactions among a Pair/Trio of Closely Spaced Vertical-Axis Wind Turbines

open access: yesEnergies, 2023
To elucidate the wind-direction dependence of the rotor performance in closely spaced vertical-axis wind turbines, wind-tunnel experiments were performed at a uniform wind velocity.
Yoshifumi Jodai, Yutaka Hara
doaj   +1 more source

Flow Visualization in a Curved Diffuser Using Smoke Wire Method

open access: yesJournal of the Visualization Society of Japan, 1995
The purpose of this study is to clarify the internal flow pattern in several curved diffusers with the different logarithmic spiral angle. The flow visualizations were carried out by smoke wire method using High Speed Video Camera, and their results were compared with the data obtained by the wind tunnel experiment.
Masao YAMAMOTO   +5 more
openaire   +3 more sources

Active control of sheet flutter by using injection and suction air flows from a nozzle

open access: yesNihon Kikai Gakkai ronbunshu, 2021
This paper presents a novel technique of an active control to suppress sheet flutter. In this technique, sheet flutter is actively and non-contactly suppressed by injection and suction air flows through a nozzle. A nozzle is combined with a speaker as an
Hikaru TAKAHASHI   +4 more
doaj   +1 more source

Wind Tunnel Experiments on Interaction between Two Closely Spaced Vertical-Axis Wind Turbines in Side-by-Side Arrangement

open access: yesEnergies, 2021
This study aimed to determine the optimal rotor spacing of two vertical-axis wind turbines, which are simulated by miniature models arranged side-by-side with a relatively low aspect ratio.
Yoshifumi Jodai, Yutaka Hara
doaj   +1 more source

Research and engineering application of continuous-drive friction welding

open access: yes工程科学学报, 2022
The friction welding (FW) technology is a kind of solid-phase hot pressing welding method applied to the connection of similar or dissimilar materials.
Han ZHANG, Zhi-ming ZHU
doaj   +1 more source

Study on the fundamental flow characteristics of synthetic jets(Behavior of free synthetic jets)

open access: yesJournal of Fluid Science and Technology, 2014
Jet flows have been applied in numerous fields to control flow separation. Over the last decade, several studies on the production of synthetic jets have been performed.
Koichi NISHIBE   +3 more
doaj   +1 more source

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