Fluid Flow Equations for Rotordynamic Flows in Seals and Leakage Paths [PDF]
, 2001 Fluid-induced rotordynamic forces produced by the fluid in an annular seal or in the leakage passage surrounding the shroud of a pump or turbine, are known to contribute substantially to the potential excitation forces acting on the rotor.
Brennen, C. E., Hsu, Y.
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Drag reduction within radial turbine rotor passages using riblets [PDF]
, 2018 In this paper, reducing the friction losses in a radial inflow turbine rotor surface by adding engineered features (riblets) is explored. Initially, computational fluid dynamics analysis was used to study the operating mechanism of riblets and to test ...
Khader, M. A., Sayma, A. I.
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Numerical simulation of three-phase flow in an external gear pump using immersed boundary approach [PDF]
, 2019 This paper presents a three-phase fully compressible model applied along with an immersed boundary model for predicting cavitation occurring in a two dimensional gear pump in the presence of non-condensable gas (NCG).
Gavaises, M. +3 more
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Numerical studies towards practical large-eddy simulation [PDF]
, 2007 Large-eddy simulation developments and validations are presented for an improved simulation of turbulent internal flows. Numerical methods are proposed according to two competing criteria: numerical qualities (precision and spectral characteristics), and
C. Bogey +20 more
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What you see is what you step: the horizontal-vertical illusion increases toe clearance in older adults during stair ascent [PDF]
, 2015 PURPOSE Falls on stairs are a significant cause of morbidity and mortality in elderly people. A simple safety strategy to avoid tripping on stairs is increasing foot clearance. We determined whether a horizontal–vertical illusion superimposed onto stairs
Buckley, JG +4 more
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Computational Investigation of Effect of Tip Clearance in an Annular Turbine Rotor Impulse Cascade
Journal of aerospace science and technology, 2023 This paper describes three dimensional computational investigations of the effect of the tip clearance on the secondary and tip clearance flows in an annular turbine rotor cascade with non uniform inlet flow.
K. Goutham +2 more
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Nonlinear dynamics, 2021 The primary resonance and nonlinear vibrations of the functionally graded graphene platelet (FGGP)-reinforced rotating pretwisted composite blade under combined the external and multiple parametric excitations are investigated with three different ...
X. Gu, W. Zhang, Y. Zhang
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Direct Laser Fabrication of a Gas Turbine Engine Component - Microstructure and Properties - Part I [PDF]
, 1998 This paper presents the development of a new technique for the production of abrasive turbine blade tips by direct laser processing. This superalloy cermet component is an integral part of the low pressure turbine sealing system in a demonstrator ...
Beaman, Joseph J. +6 more
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Study on Steam Excitation Forces Induced by Tip Seal Leakage Flow in Steam Turbines
MachinesThis study aims to elucidate the mechanisms by which tip seal leakage flow induces steam excitation, thereby enhancing the operational safety of steam turbines.
Pan Li +4 more
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Experimental and Numerical Simulation Study of Compressors with Non-Axisymmetric Layouts
Shanghai Jiaotong Daxue xuebaoThe non-axisymmetric deviation of blade stagger angle and tip clearance has significant impact on aerodynamic performance and stability in actual compressors. In this paper, three sets of compressor test, including the prototype with a uniform layout, as
WU Xiaolong, XIA Kailong, MENG Dejun, HAO Shengchun, ZHU Mingmin
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