Results 301 to 310 of about 31,063 (340)
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Cascade Experiments Over “S” Blade Profiles
Journal of Energy Engineering, 1986A fully reversible axial machine in a tidal power plant has to perform turbining and pumping in both normal and reversed directions of flow. Runner blades having “S” cambered profile are found to be suitable for all four modes of operation. Cascade characteristics of four “S” blade profiles are presented and compared in this paper.
Rm. Ramachandran +2 more
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Advances in axial turbine blade profile aerodynamics
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2020The aerodynamic performance of axial turbines depends significantly on profile losses, secondary flow losses, and clearance gap losses of vanes and blades. In modern high-efficiency turbomachinery operating at various working conditions, profile losses are very important criteria for the development of vanes and blades, and turbine designers strive to
Jie Gao +3 more
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Cold Blade Profile Generation Methodology for Compressor Rotor Blades Using FSI Approach
Volume 1: Compressors, Fans and Pumps; Turbines; Heat Transfer; Combustion, Fuels and Emissions, 2017This paper describes a methodology for obtaining correct blade geometry of high aspect ratio axial compressor blades during running condition taking into account of blade untwist and bending. It discusses the detailed approach for generating cold blade geometry for axial compressor rotor blades from the design blade geometry using fluid structure ...
Kirubakaran Purushothaman +3 more
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Low-profile Ultra-Wideband Blade Monopole Antenna
2018 9th International Symposium on Telecommunications (IST), 2018A low-profile ultra-wideband blade monopole antenna, which enclosed in a radome, at 400-3000 MHz bands is presented. The antenna configuration is a blade with slanted edge which demonstrates the enhanced impedance bandwidth compared with a blade antenna with equal total height but no slanted edge. The simulated and tested Voltage Standing Wave Ratio of
Reza Shamsaee Malfajani +2 more
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Constructing section profile curve of turbine blade
2010 International Conference on Wavelet Analysis and Pattern Recognition, 2010With the development of aero manufacturing, Precise description of turbine blade is required. The shape of leading/trailing edge is very important to the section profile curve of the turbine blade. Generally, the leading/trailing edge is a small section of the elliptic arc.
Yuan-Peng Liu, Song Zhao, Xiao-Yan Dong
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Comparison of Various Blade Profiles in a Two-Blade Conventional Savonius Wind Turbine
Journal of Energy Resources Technology, 2020Abstract Savonius turbines are one of the old and cost-effective turbines which extract the wind energy by the drag force. Nowadays, they use in urban areas to generate electricity due to their simple structure, ease of maintenance, and acceptable power output under a low wind speed.
Rahim Hassanzadeh +2 more
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A registration method for 2D blade profile
SPIE Proceedings, 2016Fast and accurate registration research has important theory significance and engineering application value in improving digital measurement accuracy and efficiency. Aiming at solving registration precision and registration speed problem, the extraction scheme of contour dominant point, correspondence establishment method and the objective function of ...
Bin Zhang, Jianguo Fang, Pengfei Liu
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Development of Blade Profiles for Low Pressure Turbine Applications
Volume 1: Turbomachinery, 1996This paper describes a programme of work, largely experimental, which was undertaken with the objective of developing an improved blade profile for the low-pressure turbine in aero-engine applications. Preliminary experiments were conducted using a novel technique.
E. M. Curtis +5 more
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A Robust Blade Profile Feature Parameter Identifying Method
2021The blade is the key part of aero-engine. The detection of the blade profile feature parameters is an important aspect in blade manufacturing. However, the surface of the blade is free-form surface. It is difficult to extract feature parameters. In this paper, a robust feature identify method is proposed.
Zhenyou Wang +3 more
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Aeroelastic Computation of a Wind Turbine Blade Profile
Volume 6: Energy, Parts A and B, 2012Wind turbine is one of the important devices to extract clean energy from the wind flow. The efficiency of wind turbines must be examined under various working conditions in order to estimate the off-design performance. Numerous aerodynamic and structural research works have been carried out to compute the aeroelastic effects on wind turbines.
A. Nejat, M. R. Abianaki, I. Rahbari
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