Results 41 to 50 of about 1,480,626 (311)

Framing Failures in Wood-Frame Hip Roofs under Extreme Wind Loads

open access: yesFrontiers in Built Environment, 2018
Wood-frame residential roof failures are among the most common and expensive types of wind damage. Hip roofs are commonly understood to be more resilient during extreme wind in relation to gable roofs.
Sarah A. Stevenson   +2 more
doaj   +1 more source

A New Algorithm on Automatic Trimming for Helicopter Rotor Aerodynamic Loads

open access: yesAerospace, 2023
In order to simulate the flight state of the helicopter effectively, it is necessary to trim the helicopter during the forward flight in a wind tunnel test.
Xinfan Yin   +5 more
doaj   +1 more source

Blockage corrections for wind tunnel tests conducted on a Darrieus wind turbine

open access: yesJournal of Wind Engineering and Industrial Aerodynamics, 2018
In this study, the influence of the blockage ratio in three wind tunnel tests conducted on a small vertical-axis Darrieus wind turbine was quantitatively investigated.
Houigab Jeong   +2 more
semanticscholar   +1 more source

The PRIMA Thesaurus for Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
The PRIMA Thesaurus is a structured vocabulary designed to improve how materials science data is described and shared. Developed with input from multiple experts, it enables clear documentation of research workflows, data exchange, and reuse across platforms.
Rossella Aversa   +8 more
wiley   +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

Evaluation of mast measurements and wind tunnel terrain models to describe spatially variable wind field characteristics for long-span bridge design

open access: yesJournal of Wind Engineering and Industrial Aerodynamics, 2018
The quality of the information about the wind field characteristics is crucial for accurately predicting the structural response of a long-span bridge subjected to dynamic wind loads. In this paper, in situ mast measurements and terrain model wind tunnel
T. M. Lystad, A. Fenerci, O. Øiseth
semanticscholar   +1 more source

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao   +2 more
wiley   +1 more source

Low Speed Wind Tunnel Design and Optimization Using Computational Techniques and Experimental Validation [PDF]

open access: yesINCAS Bulletin, 2019
Generally, the experimental aerodynamics is related to wind tunnel experiments. The wind tunnel design topic is very old but the development in computational fluid dynamics led to improvement in the wind tunnel design. This paper describes the design and
Ahmed ABOELEZZ
doaj   +1 more source

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami   +4 more
wiley   +1 more source

Effects of Reinjection on Flow Field of Open Jet Automotive Wind Tunnel Test Section

open access: yesJournal of Applied Fluid Mechanics, 2018
The distributions of axial static pressure coefficient and flow fluctuation in the test section which affect aerodynamic measurement in an open jet wind tunnel is presented.
Q. Li   +6 more
doaj  

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