Results 31 to 40 of about 32,908 (214)
A Review of Cooling Studies on Gas Turbine Rotor Blades with Rotation
Inventions, 2023 Increases in power density and thermal efficiency of a highly efficient gas turbine engine motivate an ever-mounting turbine entry temperature. The combined metallurgical and cooling advancements ensure the structural integrity of a gas turbine rotor ...
Shyy Woei Chang +3 more
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Cause specification of performance curve instability in mixed-flow pump by LES
Nihon Kikai Gakkai ronbunshu, 2016 A technique for high-accuracy predicting performance curve instability in pumps and clarification of the phenomenon in order to control the instability is required for designing high performance pumps.
Isao HAGIYA +4 more
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Hangkong gongcheng jinzhan, 2020 The air outlet hole of lower edge plate of turbine blade can influence the flow and heat transfer performance. The numerical simulation method is used to study the effect of air outlet hole of lower edge plate on the flow and heat transfer performance in
ZHENG Guanghua +4 more
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Identification of Noise Sources in a Realistic Turbofan Rotor Using Large Eddy Simulation
Acoustics, 2020 Large Eddy Simulation is performed using the NASA Source Diagnostic Test turbofan at approach conditions (62% of the design speed). The simulation is performed in a periodic domain containing one fan blade (rotor-alone configuration). The aerodynamic and
Pavel Kholodov, Stéphane Moreau
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Aircraft rotor blade with passive tuned tab [PDF]
, 1985 A structure for reducing vibratory airloading in a rotor blade with a leading edge and a trailing edge includes a cut out portion at the trailing edge. A substantially wedge shaped cross section, inertially deflectable tab, also with a leading edge and a
Campbell, T. G.
core +1 more source
Frontiers in Energy Research, 2022 Three-dimensional separation is an inherent flow feature in the blade-end corner of compressors passage, which is a primary source of entropy generation and loss.
Chuansijia Tao +6 more
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Enhancement of SNUF Active Trailing-edge Flap Blade Mechanism Design [PDF]
Transactions of the Korean Society for Noise and Vibration Engineering, 2013 SNUF(Seoul National University flap) 블레이드는 고주파 영역에서 진동 감쇠를 위하여, 압전작동기에 의해 움직이는 뒷전 플랩이 장착되어 있는 축소형 로터 블레이드이다. 이 블레이드를 설계하기 위하여 2차원 단면 해석과 1차원 기하학적 정밀 보 해석이 수행되었고, 사용할 재료의 특성을 확인하였다. 이전 연구자들의 실험을 참조하여, ${\pm}4^{\circ}$ 의 플랩 변위각을 진동감쇠를 위한 설계요건으로 선정하였다. 플랩의 연결 메커니즘을 설계하고, 설계된 메커니즘의 성능을 확인하기 위하여 정적 벤치 시험을 수행하였다.
Balakumaran Natarajan +2 more
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发电技术Reducing the blade aerodynamic loads is extremely important to extend the life of wind turbine blades. Trailing edge flaps are effective means to reduce blade aerodynamic loads, however, its regulation ability weakens greatly at large angles of wind ...
QIN Zhipeng +3 more
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Causal Effect of Leading-Edge Sawtooth Configuration on Flow Field Characteristics and Aerodynamic Losses in the Supersonic Compressor Cascade [PDF]
Journal of Applied Fluid MechanicsThis study focuses on the TM-141 supersonic compressor blade as the subject of investigation. Utilizing the Reynolds-averaged numerical simulation approach, the study examines the impact of the leading-edge sawtooth structure on the blade grid, flow ...
S. J. Hu, Z. J. Wei, M. Ni, G. M. Ren
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Aerodynamic Performance Analysis of Trailing Edge Serrations on a Wells Turbine
Energies, 2022 The primary objective of this investigation was to explore the aerodynamic impact of adding trailing edge serrations to a Wells turbine. The baseline turbine consists of eight NACA 0015 blades. The blade chord length was 0.125 m and the span was 0.100 m.
Abdullah Saad Alkhalifa +2 more
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