Results 21 to 30 of about 46,505 (316)

Numerical simulation study on dynamic stall of airfoil controlled by combined blow-suction

open access: yesHangkong gongcheng jinzhan, 2023
One of the key problems to improve the aerodynamic characteristics of airfoil is to solve the dynamic stall.This paper presents a method to control the dynamic stall of airfoil by using the combination of leading-edge suction and trailing edge suction ...
JIA Tianhao   +3 more
doaj   +1 more source

Separable shape tensors for aerodynamic design

open access: yesJournal of Computational Design and Engineering, 2023
AbstractAirfoil shape design is a classical problem in engineering and manufacturing. In this work, we combine principled physics-based considerations for the shape design problem with modern computational techniques using a data-driven approach. Modern and traditional analyses of two-dimensional (2D) and three-dimensional (3D) aerodynamic shapes ...
Zachary J. Grey   +2 more
openaire   +2 more sources

An improved WENO-Z scheme with symmetry-preserving mapping

open access: yesAdvances in Aerodynamics, 2020
Since the classical weighted essentially non-oscillatory (WENO) scheme is proposed, various improved versions have been developed, and a typical one is the WENO-Z scheme.
Zheng Hong, Zhengyin Ye, Kun Ye
doaj   +1 more source

Influence of the Blunt Trailing-Edge Thickness on the Aerodynamic Characteristics of the Very Thick Airfoil

open access: yesWind, 2023
In this paper, the NWT600 airfoil with a thickness ratio of 60% is taken as the research object. The aerodynamic performance of the airfoil is analyzed by experiments and numerical simulations.
Zhen Pei   +3 more
doaj   +1 more source

Aerodynamic Benchmarking of the Deepwind Design [PDF]

open access: yesEnergy Procedia, 2015
AbstractThe aerodynamic benchmarking for the DeepWind rotor is conducted comparing different rotor geometries and solutions and keeping the comparison as fair as possible. The objective for the benchmarking is to find the most suitable configuration in order to maximize the power production and minimize the blade solicitation and the cost of energy ...
BEDON, GABRIELE   +5 more
openaire   +4 more sources

Parameter-Based Design and Analysis of Wind Turbine Airfoils with Conformal Slot Co-Flow Jet [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
A co-flow jet (CFJ), an active flow control method combining blowing and suction control, can effectively suppress the stall of airfoils. However, the streamwise jet channel along the upper surface of a conventional CFJ airfoil reduces the thickness and ...
C. Y. Ma, H. Y. Xu
doaj   +1 more source

Numerical Simulation of Dynamic Pressure Change in Transport Aircraft Cabin with Airdrop

open access: yesHangkong gongcheng jinzhan, 2021
When heavy equipment are airdropped, the cabin cross-section is largely blocked, and rapid moving of heavy equipment will cause drastic changes in cabin pressure and even damage the health of cabin crew.Therefore, it is necessary to carry out numerical ...
LIU Weibing, JIAO Yuqin, ZOU Hongyi
doaj   +1 more source

Numerical Simulation of Flow over Bionic Airfoil

open access: yesInternational Journal of Aerospace Engineering, 2021
In this study, the aerodynamic performance of bionic airfoil was numerically studied by CFD method. The bionic airfoil was represented by the combination of airfoil and a small trailing edge flap.
Lishu Hao   +3 more
doaj   +1 more source

An efficient geometric constraint handling method for surrogate-based aerodynamic shape optimization

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
Handling a large number of geometric constraints brings a big challenge to the surrogate-based aerodynamic shape optimization (ASO) driven by computational fluid dynamics (CFD).
Kai Wang   +3 more
doaj   +1 more source

Design Optimization of a Multi-Megawatt Wind Turbine Blade with the NPU-MWA Airfoil Family

open access: yesEnergies, 2019
A new airfoil family, called NPU-MWA (Northwestern Polytechnical University Multi-megawatt Wind-turbine A-series) airfoils, was designed to improve both aerodynamic and structural performance, with the outboard airfoils being designed at high design lift
Jianhua Xu   +3 more
doaj   +1 more source

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