Results 11 to 20 of about 85,424 (309)

Wind Tunnel Experiments of the CALLISTO VTVL Launcher in the TMK and HST Wind Tunnels [PDF]

open access: yes, 2022
CALLISTO is a demonstrator for a first stage of a reusable vertical take-off, vertical landing rocket and is developed and build within a collaboration of DLR, CNES and JAXA [1]. DLR is leading the aero science team [2] and is in charge of the aerodynamic and aerothermodynamic characterisation of the vehicle.
Riehmer, Johannes   +6 more
openaire   +2 more sources

Experimental Investigation on Technology of Force Measurement Using a Distributed-sting-balance in Wind Tunnel

open access: yesHangkong gongcheng jinzhan, 2021
The processing and assembly error of using twin-trail support measurement modes can increase the internal stress of the system,and influence the measurement accuracy. According to the aerodynamic measurement demand of CTS wind tunnel experiment with twin-
YAN Wanfang   +3 more
doaj   +1 more source

Accessibility Study of a Compact Wind Tunnel with an Unequal Spacing Grid for the Outdoor Wind Environment

open access: yesBuildings, 2022
One of the key issues in architectural design and regional planning is to create a safe and comfortable outdoor building environment, which calls for more studies.
Xiaojun Ma   +3 more
doaj   +1 more source

Scaling of wind turbine aerodynamics: wind tunnel experiments [PDF]

open access: yesMATEC Web of Conferences, 2020
A small-scale wind turbine model was designed and manufactured to study its aerodynamic thrust force and the harvested flow energy. To provide a good understanding of the aerodynamics of the small-scale wind turbine at the low Reynolds number, the performance of three different types of blade airfoils was studied.
Macháček Michael   +2 more
openaire   +3 more sources

Structural and Aeroelastic Studies of Wing Model with Metal Additive Manufacturing for Transonic Wind Tunnel Test by NACA 0008 Example

open access: yesAerospace, 2021
Additive manufacturing (AM) technology has a potential to improve manufacturing costs and may help to achieve high-performance aerospace structures. One of the application candidates would be a wind tunnel wing model.
Natsuki Tsushima   +3 more
doaj   +1 more source

Measurements of dust deposition velocity in a wind-tunnel experiment [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
In this study, we present the results of a wind-tunnel experiment on dust deposition. A new method is proposed to derive dust deposition velocity from PDA (particle dynamics analysis) particle-velocity and particle-size measurements.
J. Zhang, Y. Shao, N. Huang
doaj   +1 more source

Numerical and Experimental Study of Topographic Speed-Up Effects in Complex Terrain

open access: yesEnergies, 2020
Our research group is developing computational fluid dynamics (CFD)-based software for wind resource and energy production assessments in complex terrain called RIAM-COMPACT (Research Institute for Applied Mechanics, Kyushu University (RIAM ...
Takanori Uchida, Kenichiro Sugitani
doaj   +1 more source

Development of a Sensitivity-Adjustable Three-Component Force Balance and Its Application to Wind Tunnel Testing

open access: yesJournal of Fluid Science and Technology, 2013
The purpose of the research is to develop the method of designing and manufacturing a sensitivity-adjustable three component force balance utilized in a wind tunnel experiment.
Gouji YAMADA   +4 more
doaj   +1 more source

Wind tunnel experiments: saltation is necessary for wind-packing [PDF]

open access: yesJournal of Glaciology, 2017
ABSTRACTWind-packed snow in the form of slabs or crusts is an important part of alpine and polar snow covers. Yet, the formation process of such layers is poorly understood. For example, it remains unclear whether drifting snow is necessary for wind-packing or not.
CHRISTIAN G. SOMMER   +2 more
openaire   +2 more sources

About the suitability of different numerical methods to reproduce model wind turbine measurements in a wind tunnel with a high blockage ratio [PDF]

open access: yesWind Energy Science, 2018
In the present paper, numerical and experimental investigations of a model wind turbine with a diameter of 3.0 m are described. The study has three objectives. The first one is the provision of validation data.
A. C. Klein   +7 more
doaj   +1 more source

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