Results 51 to 60 of about 3,951 (249)
Design methods of Coanda effect nozzle with two streams [PDF]
INCAS Bulletin, 2014 This paper continues recent research of the authors about the ACHEON Coanda effect two streams nozzle. This nozzle aims to produce an effective deflection of a propulsive jet with a correspondent deviation of the thrust vector in a 2D plane. On the basis
Michele TRANCOSSI +3 more
doaj +1 more source
Explanation and discovery in aerodynamics [PDF]
, 2005 The purpose of this paper is to discuss and clarify the explanations commonly cited for the aerodynamic lift generated by a wing, and to then analyse, as a case study of engineering discovery, the aerodynamic revolutions which have taken place within ...
McCabe, Gordon
core +1 more source
Microcylinder and Slot Combination for Flow Separation Control Over a Wind Turbine Airfoil
Wind Energy, Volume 28, Issue 7, July 2025.ABSTRACT This study explores a novel passive flow control strategy combining a microcylinder and slot configuration to mitigate flow separation over an S809 wind turbine airfoil under stall conditions at a Reynolds number of 106. Numerical simulations are conducted using the Reynolds‐averaged Navier–Stokes (RANS) approach. The primary objectives are to
Sami Bouterra +3 more
wiley +1 more source
Energy Technology, Volume 13, Issue 4, April 2025.Ammonia's combustion still presents challenges, including the formation of NOx emissions. Therefore, knowing the onset of radicals across the flame can help in mitigating unwanted pollutants while maximizing flame control. This document addresses the change of position of various excited radicals, method that through relatively simple systems can ...
Marco Osvaldo Vigueras‐Zuniga +4 more
wiley +1 more source
Research on Stall Characteristics of Droop Leading Edge Combined with Internal-blowing Flaps
Hangkong gongcheng jinzhan, 2022 The internally blown flap is of efficient lift enhancement ability,but stall angle of attack drops significantly at a higher jet momentum.In order to improve the stall characteristics,the stall characteristics of the internally blown flap with the droop ...
HE Meng, ZHANG Liu, ZHAO Lei, LI Chang
doaj +1 more source
Positive corona discharge of rod‐plate electrodes in high‐speed airflow
High Voltage, Volume 10, Issue 2, Page 337-350, April 2025.Abstract The characteristics of positive corona discharge of rod electrode in high‐speed airflow are studied in this paper. The experiments were carried out in a wind tunnel with a maximum flow speed of 100 m/s in a dark room. The discharge voltage and current were recorded and the corona patterns were captured by a digital single lens reflex (DSLR ...
Qiang Wu +5 more
wiley +1 more source
AIChE Journal, Volume 71, Issue 1, January 2025.Abstract Optimal control over fast chemical processes hinges on the achievement of rapid and effective mixing. Impinging jet mixers are a unique class of passive mixing devices renowned for their exceptional ability to achieve rapid mixing at micro‐length scales, whilst offering the possibility of a high throughput.
Cedric Devos +10 more
wiley +1 more source
Applied Sciences, 2021 In this study, a jet injection propeller was designed to increase its efficiency, and the results were compared by open water tests and numerical computations.
Ju-Han Lee +4 more
doaj +1 more source
IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.Hydrokinetic turbines are essential for sustainable power generation, but impacts can hinder their efficiency from sediment and debris. This study numerically evaluates the performance of Darrieus‐type vertical axis turbines with straight and Coanda‐type grates under varying design angles. The research uses ANSYS Fluent to highlight the turbines' power
Derya Karakaya, Sebnem Elçi
wiley +1 more source
Advances in Materials Science and Engineering, 2015 The current paper has been written in order to find the best solutions to replace the antitorque rotor of single-rotor helicopters, with removal of its disadvantages through the Coandă Effect. This would significantly increase the flight performance. The
Ionică Cîrciu +4 more
doaj +1 more source