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Three-dimensional interference sources and optimal sampling location of piles utilizing reflected wave method

Yantu gongcheng xuebao, 2017
When utilizing the reflected wave method for integrity testing of piles, signals are usually biased due to the three-dimensional (3D) wave motion of the piles.
RONG Chui-qiang 1, ZHAO Xiao-hua 1,2
doaj   +1 more source

Effects of Wind Tunnel Geometry on Starting Characteristics of a Supersonic Wind Tunnel

JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 2011
To improve test capability at intermittent blow-down supersonic wind tunnels, diffuser performance is important to keep the starting pressure ratio as low as possible. A parametric study on the tunnel geometry for the JAXA 1m × 1m supersonic wind tunnel (JSWT) was conducted by numerical simulation. It was found that the diffuser part with a shock train
AKATSUKA, Junichi, NAGAI, Shinji
openaire   +2 more sources

Study on Wind Effect of Train Piston in Railway Tunnel with High Altitude and High Rock Temperature [PDF]

E3S Web of Conferences
The piston wind effect in the tunnel of the Sichuan-Tibet railway under high rock temperature and low-pressure environment was studied and analyzed to provide theoretical support for the tunnel’s thermal environment analysis and ventilation design.
Feng Guohui, Zhang Xiao, Sun Jialin, Huang Kailiang   +3 more
doaj   +1 more source

Fully-coupled modeling and analysis of the influence of anti-icing bleed air system of engine inlet duct on compressor performance

Case Studies in Thermal Engineering
A fully-coupled method that integrates the compressor, inlet duct and anti-icing bleed air system (AI-BAS) was established to offer a quick prediction of the effects of anti-icing bleeding on compressor performance, facilitating the development of a ...
Zuojun Wei, Cheng Li, Guangming Ren, Xiaohua Gan   +3 more
doaj   +1 more source

Shear Performance of Vertical Joints in Wind Turbine Concrete Towers with Different Interface Processes

Buildings
As a weak part of the concrete tower in wind turbines, the insufficient shear capacity of vertical joints can cause the local shear failure of the tower, reduce the overall bearing capacity and stability of the tower, and lead to safety issues.
Yang Zhou, Ertong Hao, Yudong Ran, Hai Cao, Yane Li, Jike Tan   +5 more
doaj   +1 more source

CFD and experimental data of closed-loop wind tunnel flow

Data in Brief, 2016
The data presented in this article were the basis for the study reported in the research articles entitled ‘A validated design methodology for a closed loop subsonic wind tunnel’ (Calautit et al., 2014) [1], which presented a systematic investigation ...
John Kaiser Calautit, Ben Richard Hughes
doaj   +1 more source

Preliminary design and key components validation of modular recuperated micro gas turbine for small unmanned systems

Case Studies in Thermal Engineering
This paper presents an overview of the preliminary design of a modular recuperated micro gas turbine for small unmanned systems, demonstrating the technical feasibility of this integrated power solution.
Zuojun Wei, Wenhua Duan, Haotian Gao, Cunju Wei, Guangming Ren, Xiaohua Gan   +5 more
doaj   +1 more source

Testing of calibration models in order to certify the overall reliability of the trisonic blowdown wind tunnel of VTI [PDF]

FME Transactions, 2010
It is strongly recommended that wind tunnel calibrations become a regular part of the operational cycle for any wind tunnel. They facilitate tunnel-totunnel data comparisons. Standard calibration model, representing a generic winged missile configuration,
Damljanović Dijana, Rašuo Boško
doaj  

A technique for reducing supersonic transient loads on internal wind tunnel balances [PDF]

Tehnika
Design of slender supersonic missiles requires a comprehensive experimental support in the form of wind tunnel data for a wide range of flight parameters (angle of attack and Mach number). However, in supersonic wind tunnel testing, the problem exists of
Vuković Đorđe S., Damljanović Dijana B.   +1 more
doaj   +1 more source

Vertical Wind Tunnel for Prediction of Rocket Flight Dynamics

Aerospace, 2016
A customized vertical wind tunnel has been built by the University of Canterbury Rocketry group (UC Rocketry). This wind tunnel has been critical for the success of UC Rocketry as it allows the optimization of avionics and control systems before flight ...
Hoani Bryson, Hans Philipp Sültrop, George Buchanan, Christopher Hann, Malcolm Snowdon, Avinash Rao, Adam Slee, Kieran Fanning, David Wright, Jason McVicar, Brett Clark, Graeme Harris, Xiao Qi Chen   +12 more
doaj   +1 more source