Results 41 to 50 of about 1,176 (168)

Large eddy simulations of a utility‐scale horizontal axis wind turbine including unsteady aerodynamics and fluid‐structure interaction modelling

Wind Energy, 2023
Growing horizontal axis wind turbines are increasingly exposed to significant sources of unsteadiness, such as tower shadowing, yawed or waked conditions and environmental effects.
Giacomo Della Posta, Stefano Leonardi, Matteo Bernardini   +2 more
doaj   +1 more source

Numerical Investigation of the Coupling Effects of Pulsed H₂ Jets and Nanosecond-Pulsed Actuation in Supersonic Crossflow

Aerospace
Numerical investigations were conducted to analyze the coupling effects of pulsed H2 jets and nanosecond-pulsed actuation (NS-SDBD) in a supersonic crossflow.
Keyu Li, Jiangfeng Wang
doaj   +1 more source

Numerical Simulation of Folding Tail Aeroelasticity Based on the CFD/CSD Coupling Method

Vibration
This paper presents a CFD/CSD coupling method for aeroelastic simulation of folding tail morphing aircraft. The unsteady aerodynamic analysis is based on an in-house computational fluid dynamics (CFD) solver for the Euler equations, and emphasis is made ...
Di Zhou, Weitao Lu, Jiangpeng Wu, Tongqing Guo, Binbin Lv, Hongtao Guo, Hongya Xia   +6 more
doaj   +1 more source

Reduced-order modeling of unsteady aerodynamics of a flapping wing based on the Volterra theory

Results in Physics, 2017
Flapping flight mechanisms offers a power-efficient and highly manoeuvrable basis for the development of micro air vehicles. The aerodynamic knowledge and prediction tools of the flapping wing are quite important for the design of micro air vehicles.
Kai Liu, Daochun Li, Jinwu Xiang
doaj   +1 more source

Numerical Study on the Power Efficiency and Flow Characteristics of a New Type of Wind Energy Collection Device

Applied Sciences, 2020
The increased velocity (Invelox) wind turbine system is a novel wind energy collection device. This system can collect and accelerate the air flow through a funnel and a Venturi tube.
Li Ding, Tongqing Guo
doaj   +1 more source

Numerical Investigation of Stage Separation Control of Tandem Hypersonic Vehicles Based on Lateral Jet

Aerospace
The stage separation of hypersonic vehicles is critically challenged by severe aerodynamic interference, which induces significant attitude deviations and jeopardizes subsequent flight missions.
Wenhua Guo, Jiawei Fu, Pengzhen He, Shuling Tian   +3 more
doaj   +1 more source

Improvement in the Accuracy and Efficiency of Smoothed Particle Hydrodynamics: Point Generation and Adaptive Particle Refinement/Coarsening Algorithms

Actuators
An adaptive particle refinement (APR) algorithm has been developed for the smoothed particle hydrodynamics (SPH) method to augment the resolution of the region of interest to achieve high accuracy and simultaneously reduce the cost of computational ...
Jun Zhang, Yanchao Ding, Wei Wu, Wenjie Li, Zhaoming Zhang, Yanmei Jiao   +5 more
doaj   +1 more source

Aerodynamic Prediction and Design Optimization Using Multi-Fidelity Deep Neural Network

Aerospace
With the rapid development of data-driven methods in recent years, deep neural networks have attracted significant attention for aerodynamic predictions and design optimizations.
Bingchen Du, Ennan Shen, Jiangpeng Wu, Tongqing Guo, Zhiliang Lu, Di Zhou   +5 more
doaj   +1 more source

Wing Kinematics and Unsteady Aerodynamics of a Hummingbird Pure Yawing Maneuver. [PDF]

Biomimetics (Basel), 2022
Menzer A, Ren Y, Guo J, Tobalske BW, Dong H.   +4 more
europepmc   +1 more source

Delayed Detached-Eddy Simulations of Aerodynamic Variability During Carrier-Based Aircraft Landing with a Domain Precursor Inflow Method

Journal of Marine Science and Engineering
Flight tests and wind tunnel experiments face difficulties in investigating the impact of aircraft carrier air-wake on the landing process. Meanwhile, numerical methods generally exhibit low overall computational efficiency in solving such problems.
Jiawei Fu, Ruifan Hu, Hong Wang, Ke Xu, Shuling Tian   +4 more
doaj   +1 more source