Results 81 to 90 of about 13,402 (209)
Effects of casing motion on tip leakage flow and film-cooling effectiveness of squealer tips
Journal of Thermal Science and Technology, 2017 A comparative investigation of leakage flow and film-cooling characteristics on different squealer tips is conducted under the conditions of stationary and moving casing. Firstly, the numerical method used in the calculations has been verified. Then, the
Fengna CHENG +3 more
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Energy efficient engine high-pressure turbine detailed design report [PDF]
The energy efficient engine high-pressure turbine is a single stage system based on technology advancements in the areas of aerodynamics, structures and materials to achieve high performance, low operating economics and durability commensurate with ...
Howe, D. C. +2 more
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Inherent Inhomogeneities in Tunneling Spectra of BSCCO Crystals in the Superconducting State
, 2001 Scanning Tunneling Spectroscopy on cleaved BSCCO(2212) single crystals reveal inhomogeneities on length-scales of $\sim$30 $\AA$. While most of the surface yields spectra consistent with a d-wave superconductor, small regions show a doubly gapped ...
A. Kapitulnik +26 more
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Alexandria Engineering JournalSimulation studies were conducted to investigate structure of internal flow and pulsation in pressure properties of pumps under different flow circumstances.
Ahmed Ramadhan Al-Obaidi, Anas Alwatban
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A performance/loss evaluation of SSME HPFTP turbine [PDF]
An evaluation of component losses of the High Pressure Fuel Turbopump (HPFTP) in the Space Shuttle Main Engine (SSME) is performed using a mean-line prediction method.
Chyu, Mingking K.
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The effects of Reynolds number, rotor incidence angle, and surface roughness on the heat transfer distribution in a large-scale turbine rotor passage [PDF]
A combined experimental and computational program was conducted to examine the heat transfer distribution in a turbine rotor passage geometrically similiar to the Space Shuttle Main Engine (SSME) High Pressure Fuel Turbopump (HPFTP).
Anderson, Olof L., Blair, Michael F.
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Blade scale effects of tip leakage [PDF]
, 1990 October 1990Includes bibliographical references (leaves 43-44)The effects of blade-tip leakage in a turbine are investigated by modeling the stage as an incomplete actuator disk. It is found that the spanwise flow redistribution due to the gap is such as
Gauthier, R. P. +1 more
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Influence of disk leakage path on labyrinth seal inlet swirl ratio [PDF]
The results of numerous investigators have shown the importance of labyrinth seal inlet swirl on the calculated dynamic stiffness of labyrinth seals. These results have not included any calculation of inlet leakage swirl as a function of geometry and ...
Kirk, R. Gordon
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Numerical investigation of tip leakage vortex
, 2017 The Kaplan turbine has a small clearance gap between the blade tip and casing to allow the blades to rotate freely. This clearance gap is the cause of an undesirable Tip Leakage Vortex (TLV). A TLV might reduce the turbine efficiency, erode the turbine blades or cause instabilities for the power output.
openaire +1 more source
Development of a CFD model for propeller simulation. [PDF]
, 2016 The article presents a development of numerical model for a single propeller simulation and comparison of obtained results with experimental data available from a test campaign in scale 1:1.
Jóźwik, Krzysztof +3 more
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