Results 51 to 60 of about 2,091 (166)

Numerical Investigation the Effect of the Different Tip Vanes on the Loading of an H-VAWT

E3S Web of Conferences, 2018
In this paper, the effect of the three typical tip vanes on the loading of an H-VAWT is investigated by employing the three-dimensional unsteady numerical simulation method.
Shoutu Li, Yin Wang, Congxin Yang, Ye Li
doaj   +1 more source

Flow Characteristics Induced by Winglet-Type Plasma Actuators

Journal of Fluid Science and Technology, 2013
The single dielectric barrier discharge plasma actuators (PAs) are known to be effective for flow control process. This study investigated the winglet-type thin and small PAs, which were suspended in the quiescent air flow.
A.N.M. Mominul Islam MUKUT, Hiroshi MIZUNUMA, Hiromichi OBARA, Takehiko SEGAWA   +3 more
doaj   +1 more source

A Concept Study for the Aerodynamic Performance Enhancement of Small‐Scale UAVs and Light Aircraft Using Stepwise Design Optimisation and Flow Control Strategies

The Journal of Engineering, Volume 2026, Issue 1, January/December 2026.
This study explores the application of 2D aerodynamic optimisation techniques in small‐scale aircraft. It also discusses the effects of moving from 2D to 3D designs and the implications, along with an approach to address the challenges associated with this transition.
Ali Arshad, Dinusha Nethruwan Wijesinghe Wijesinghe Appuhamilage, Toms kaidalovs   +2 more
wiley   +1 more source

Impact of Leading and Trailing‐Edge Perforations on the Thermohydraulic Performance of Rectangular‐Winglet Vortex Generators

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
In this study, the thermohydraulic performance of rectangular‐winglet vortex generators (VGs) with different hole configurations (a central hole, dual‐edge holes, a leading‐edge hole, and a trailing‐edge hole) was numerically investigated. In addition, airflows through solar air heater ducts enhanced with these VGs were simulated using the realizable k‐
Roytor Charoensin-O-Larn, Boonchai Lertnuwat, Naveen Sharma   +2 more
wiley   +1 more source

ANALISA PENGARUH DOUBLE-WINGLET PADA AERODINAMIKA SAYAP PESAWAT DENGAN VARIASI SUDUT TEKUK (CANT) WINGLET DOWN MENGGUNAKAN METODE CFD

, 2019
Performa sebuah pesawat terbang dapat menurun yang diakibatkan oleh pusaran udara (vortex) yaitu meningkatnya koefisien drag dan menurunnya koefisien lift. Vortex terbesar dialami pada bagian wingtip dari sayap pesawat, sehingga untuk meminimalisir
AISYAH, VIHARTIYAH, Helmizar, Helmizar, Suandi, Agus   +2 more
core   +2 more sources

A Novel Tubular Solar Air Heater With Internal Plates: A CFD Study on Segregated Impingement Flow

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
This paper presents a numerical analysis of a novel and efficient solar air heater (SAH) designed with an integrated impingement‐return configuration to enhance thermal performance. The system consists of nine blackened copper tubes where incoming air first passes through the lower half of each tube. At the far end, the flow reverses direction in a 180°
S. A. Gandjalikhan Nassab, Fatemeh Boshagh   +1 more
wiley   +1 more source

Enhancing Flight Control in Flying Wing UAVs: A Parametric Analysis of Notch Leading Edge Positioning

International Journal of Aerospace Engineering, Volume 2026, Issue 1, 2026.
Unmanned aerial vehicles (UAVs) with flying wing designs offer unique advantages in terms of maneuverability and fuel efficiency, but achieving precise control over these tailless aircraft can be challenging. This study investigates the potential of notch leading edge (NLG) technology to improve the effectiveness of control surfaces in flying wing UAVs.
Mohammad Hossein Moghimi Esfandabadi, Mohammad Hassan Djavareshkian, Jinchao Chen   +2 more
wiley   +1 more source

PENGARUH SUDUT TEKUK (CANT) WINGLET MENGGUNAKAN AIRFOIL NACA 2215 PADA AERODINAMIKA SAYAP PESAWAT

Rotor: Jurnal Ilmiah Teknik Mesin, 2017
Flight performance is determined by the lift coefficient (CL) and drag coefficient (CD). CL and CD values are influenced by the geometric shapes of aircraft wings. Air flow through the side of the aircraft causes wingtip vortices.
Ibrahim Hanif, Asdin Amroe An Nafi, Gaguk Jatisukamto   +2 more
doaj   +1 more source

Numerical Investigation of Heat Transfer Rate Improvement in Heat Exchangers Utilizing Innovative Wavy Vortex Generators

Modelling and Simulation in Engineering, Volume 2026, Issue 1, 2026.
Quick‐cooling heat exchangers are used for a wide range of industrial applications. This study is aimed at employing the wavy surfaces of the vortex generators to reduce pressure drops and enhance heat transfer performance. The turbulent conditions for mixture (water and air) flow with Rew = 3500–5000.
Adnan Q. Ibrahim, Riyadh S. Alturaihi, Dimitris Drikakis   +2 more
wiley   +1 more source

NREL Phase VI wind turbine blade tip with S809 airfoil profile winglet design and performance analysis using computational fluid dynamics

Cogent Engineering
A crucial factor in designing the wind turbine blade tips for improved aerodynamic performance is the winglet geometry. The potentials of curved planform winglet profiles for performance augmentation have not been adequately investigated.
Girma Dejene, Venkata Ramayya Ancha, Addisu Bekele   +2 more
doaj   +1 more source