Results 11 to 20 of about 93,460 (307)
Prediction of Tip-Leakage Losses in Axial Turbines [PDF]
Journal of Turbomachinery, 1990 Existing methods for predicting the tip-leakage losses in turbomachinery are based on a variety of assumptions, many of which have not been fully verified experimentally. Recently, several detailed experimental studies in turbine cascades have helped to clarify the physics of the flow and provide data on the evolution of the losses.
M. I. Yaras, S. A. Sjolander
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A novel approach for suppressing leakage flow through turbine blade tip gaps
Propulsion and Power Research, 2022 Tip clearance leakage flow of the turbine bade is an important factor limiting the augment of the high pressure turbine efficiency, which should be suppressed utilizing certain methods.
Tianyi Wang, Yimin Xuan
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Effects of Loading Level on the Variation of Flow Losses in Subsonic Axial Compressors
Energies, 2022 The development of the aircraft industry seeks an increase in compressor loading, bringing unique flow phenomena and design problems; thus, insights into the ultrahigh loaded compressor are in great need.
Ruoyu Wang +3 more
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Effect of Film Position on the Flow and Heat Transfer Characteristics of Full-Ribbed Rotor Tip
Frontiers in Energy Research, 2022 This article numerically studied the flow and heat transfer characteristics of the full-ribbed fluted tip of a rotor with four types of distribution of cooling films, namely, the mid-arc uniform film at the bottom of the groove, the uniform film on full ...
Haimeng Zhou +4 more
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Experimental study of endwall flow in a low-speed linear compressor cascade: effect of over-tip leakage [PDF]
, 2017 This paper describes the study of endwall flow modification due to over-tip leakage flow in axial compressor blades. Un-shrouded axial compressor stator and rotor blades in aero-engines and land based gas turbines are subjected to over-tip leakage flow ...
Kanjirakkad, Vasudevan
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Polarization retention loss in PbTiO3 ferroelectric films due to leakage currents [PDF]
, 2007 The relationship between retention loss in single crystal PbTiO3 ferroelectric thin films and leakage currents is demonstrated by piezoresponse and conductive atomic force microscopy measurements.
A. Morelli +5 more
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Effect of tip winglet position on tip flow and noise of axial flow fan
Heliyon, 2023 In order to investigate the impact of blade tip winglet position on the internal flow and noise characteristics of axial flow fans,three different blade tip winglets,namely the TSW blade, the SSW blade, and the PSW blade,were hereby proposed.
Lei Diao +5 more
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Effect of pressurization on tip leakage losses in micro-scale centrifugal compressors
European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, 2021 Turbomachinery miniaturization has been an emerging research field during the last decades and, especially, micro-scale radial compressors are becoming increasingly relevant due to the development of high-speed electric motors. They can be found in a wide range of applications such as micro gas turbines, aerial unmanned vehicles propulsion, fuel cells ...
Sebastián Herrera, Andrés +2 more
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On scaling method to investigate high-speed over-tip-leakage flow at low-speed condition [PDF]
, 2017 Modern high-pressure turbine blades operate at high-speed conditions. The over-tipleakage (OTL) flow can be high-subsonic or even transonic. From the consideration of problem simplification and cost reduction, the OTL flow has been studied extensively in
He, L., Jiang, H., Wang, L., Zhang, Q.
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Nihon Kikai Gakkai ronbunshu, 2016 A tip leakage flow is well known to have predominant influence on a loss generation in a compressor. An impeller for a transonic centrifugal compressor is generally composed of the main and the splitter blades to gain the choke flow rate.
Masanao KANEKO, Hoshio TSUJITA
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