Results 21 to 30 of about 3,054 (215)
Aeroacoustic Investigation of a Single Airfoil Tip Leakage Flow [PDF]
International Journal of Aeroacoustics, 2010 Combined near and far field aeroacoustic measurements have been carried out during an original laboratory scale low Mach number (0–0.3) experiment about the tip leakage flow past a single non-rotating airfoil. Such measurements were made possible by the use of a single airfoil located in the potential core of an open jet flow in the anechoic wind ...
Jacob, Marc C. +3 more
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Tribology Online, 2007 This paper presents a general theoretical approach to evaluate the leakage flow, stiffness and damping of annular seals in turbulent flow regime including fluid inertia using turbulent lubrication theory.
Satyam Shivam Gautam, Mihir Kumar Ghosh
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HyperGI: Automated Detection and Repair of Information Flow Leakage [PDF]
2021 36th IEEE/ACM International Conference on Automated Software Engineering (ASE), 2021 Maintaining confidential information control in software is a persistent security problem where failure means secrets can be revealed via program behaviors. Information flow control techniques traditionally have been based on static or symbolic analyses -- limited in scalability and specialized to particular languages.
Ibrahim Mesecan +4 more
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Tribology Online, 2007 This paper is in continuation of its part I. It presents the rotordynamic behavior of a circular seal and multilobe seal for various L/D ratio, taper ratio and eccentricity ratio in the turbulent flow regime considering the effect of fluid inertia.
Satyam Shivam Gautam, Mihir Kumar Ghosh
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Vibrations of an Axisymmetric Body in a Cavitating Leakage Flow
JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing, 1991 This paper presents experimental studies of vibrations of an axisymmetric body in a cavitating leakage flow. The experimental passage is a narrow annular parallel passage. The effect on the characteristics of vibrations and the flow pattern in the passage were evaluated by changing the width of the passage, the downstream pressure and so forth.
ARAI, Masaaki +3 more
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Journal of Physics: Conference Series, 2022 Abstract Due to the structural design requirements, tip leakage flow is a common phenomenon in the field of axial flow rotating machinery. The tip leakage flow interacts with the mainstream and induce complex tip leakage vortex. When the local pressure drops to the saturation pressure, cavitation may occur in flow passage and the vortex ...
Xiaoyang Zhao +3 more
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Desensitization of Tip Clearance Effects in Axial Flow Turbines
Journal of Fluid Science and Technology, 2010 The present study aims to control the leakage flow and total pressure loss in high pressure turbines. A new tip shape is proposed. It is based on the triple squealer shape by adopting a new middle squealer, along the camber line, whose first and last ...
Mohamed EL-GHANDOUR +2 more
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Engineering Applications of Computational Fluid Mechanics, 2018 Abrasive wear in the clearance gap of guide vanes (GVs) increases the gap size, which deteriorates the flow and causes loss of efficiency. This paper investigates the performance of a Francis turbine including erosion-induced clearance gaps on the GVs ...
Sailesh Chitrakar +2 more
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Transient Study of Flow and Cavitation Inside a Bileaflet Mechanical Heart Valve
Applied Sciences, 2020 A mechanical heart valve (MHV) is an effective device to cure heart disease, which has the advantage of long life and high reliability. Due to the hemodynamic characteristics of blood, mechanical heart valves can lead to potential complications such as ...
Wen-qing Li +3 more
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发电技术ObjectivesIn order to obtain the refined leakage flow of brush seal and reveal its sealing mechanism, the mathematical model of the leakage flow characteristics of brush seals based on the bristle pack staggered tube bundle model was established ...
SONG Pengfei +4 more
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