Results 41 to 50 of about 441,039 (218)
Wind Tunnel Testing and Aerodynamic Characterization of a QuadPlane Uncrewed Aircraft System [PDF]
arXiv, 2023 Electric Vertical Takeoff and Landing (eVTOL) vehicles will open new opportunities in aviation. This paper describes the design and wind tunnel analysis of an eVTOL uncrewed aircraft system (UAS) prototype with a traditional aircraft wing, tail, and puller motor along with four vertical thrust pusher motors.
arxiv
Airfoil Lift Calculation Using Wind Tunnel Wall Pressures [PDF]
, 2020 An experimental method to calculate lift using static pressure ports on the wind tunnel walls and its associated limits has been explored in this paper. While the wall-pressure measurement (WPM) technique for lift calculation has been implemented by other researchers, there is a lack of literature on the sensitivity of the WPM method to test section ...
arxiv +1 more source
Analysis of high Reynolds numbers effects on a wind turbine airfoil using 2D wind tunnel test data
, 2016 The aerodynamic behaviour of a wind turbine airfoil has been measured in a dedicated 2D wind tunnel test at the DNW High Pressure Wind Tunnel in Gottingen (HDG), Germany. The tests have been performed on the DU00W212 airfoil at different Reynolds numbers:
Oscar Pires +4 more
semanticscholar +1 more source
Aeroacoustic wind tunnel tests
, 2020 The global demand for renewable energy sources has led to an increase in development and installation of wind turbines. However, noise regulations on wind turbines near populated areas can restrict the installation of new wind turbines and limit the potential energy production. The main noise from wind turbines is aerodynamic and arises from turbulence
openaire +3 more sources
Aerodynamic Test of AGARD-B Model at Mach 10 in Arc-heated High-Enthalpy Wind Tunnel
气体物理The test capacity of hypersonic equipment is crucial to the development of hypersonic technology. However, the maximum Mach number simulated by conventional hypersonic wind tunnel is less than 10 currently due to the insufficient heater capacity ...
Tingting ZHANG +4 more
doaj +1 more source
Design and testing of an affordable desktop wind tunnel [PDF]
arXiv, 2023 Wind tunnels are a key source of data collection, but their cost and size can be a significant obstacle to their acquisition and usage, especially for applications such as instrument calibration, instruction, or in-class demonstrations. Here we propose a design for a cost-effective, desktop wind tunnel. This design takes advantage of readily available,
arxiv
Airloads Correlation of the UH-60A Rotor inside the 40- by 80-Foot Wind Tunnel
International Journal of Aerospace Engineering, 2014 The presented research validates the capability of a loosely coupled computational fluid dynamics (CFD) and comprehensive rotorcraft analysis (CRA) code to calculate the flowfield around a rotor and test stand mounted inside a wind tunnel.
I-Chung Chang +2 more
doaj +1 more source
Blockage Effects in Wind Tunnel Tests for Tall Buildings with Surrounding Buildings
Applied Sciences, 2022 To study the blockage effects in wind tunnel tests for tall buildings with surrounding buildings and establish a reasonable calculation method for the blockage ratio, this paper carried out fifty-one test conditions of pressure model wind tunnel tests ...
Lei Wang +3 more
doaj +1 more source
, 2017 Wind tunnel test and computational fluid dynamics simulation were conducted to study the wind characteristics at a bridge site in mountainous terrain. The upstream terrains were classified into three types: open terrain, open terrain with a steep slope ...
Yongle Li +3 more
semanticscholar +1 more source
Experimental study of the wind pressure field on the Notre Dame Cathedral in Paris [PDF]
arXiv, 2022 The paper concerns an experimental study on the wind pressures over the surface of a worldwide known Gothic Cathedral: Notre Dame of Paris. The experimental tests have been conducted in the CRIACIV wind tunnel, Prato (Italy), on a model of the Cathedral at the scale 1:200 reproducing the atmospheric boundary layer.
arxiv