Results 71 to 80 of about 998,804 (259)

Experimental and Computational Analysis of the Unstable Flow Structure in a Centrifugal Compressor with a Vaneless Diffuser

open access: yesChinese Journal of Mechanical Engineering, 2019
The unstable flow phenomena in compressors, such as stall and surge, are closely related to the efficiency and the operating region. It is indispensable to capture the unstable flow structure in compressors and understand the mechanism of flow ...
Xiang Xue, Tong Wang
doaj   +1 more source

Methods for Advanced Wind Turbine Condition Monitoring and Early Diagnosis: A Literature Review

open access: yes, 2018
Condition monitoring and early fault diagnosis for wind turbines have become essential industry practice as they help improve wind farm reliability, overall performance and productivity.
Liton Hossain, A. Abu‐Siada, S. Muyeen
semanticscholar   +1 more source

Characterisation of a horizontal axis wind turbine’s tip and root vortices [PDF]

open access: yes, 2013
The vortical near wake of a model horizontal axis wind turbine has been investigated experimentally in a water channel. The objective of this work is to study vortex interaction and stability of the helical vortex filaments within a horizontal axis ...
Lo Jacono, David   +2 more
core   +1 more source

Research on the Flow Mechanism of a High-Loading Biomimetic Low-Pressure Turbine Cascade

open access: yesAerospace
The biomimetic turbine has an excellent flow drag reduction ability and wide incidence adaptability, so it has the potential to achieve high efficiency within a wide working range of high-performance variable cycle engines.
Hanliu Deng   +8 more
doaj   +1 more source

Development and experimental study on linear friction welding titanium alloy blisk

open access: yesJournal of Aeronautical Materials, 2020
Taking the advanced aeroengine compressor blisk as the application object, the development and experimental study on the TC11/TC17 different materials linear friction welding integral blisk was carried out. The microstructure of welded joint was analyzed,
LI Zuojun   +4 more
doaj   +1 more source

Film Cooling Performance and Superposition Method of an Actual Turbine Vane at High Freestream Turbulence

open access: yesAerospace
This study aims to enhance the understanding of film cooling performance in an actual turbine vane by investigating influencing factors and developing more precise numerical prediction methods. Pressure sensitive paint (PSP) testing and Reynolds-Averaged
Peng Chu   +7 more
doaj   +1 more source

Evaluation of shear mounted elastomeric damper [PDF]

open access: yes, 1982
Viton-70 elastomeric shear mounted damper was built and tested on a T-55 power turbine spool in the rotor's high speed balancing rig. This application of a shear mounted elastomeric damper demonstrated for the first time, the feasibility of using ...
Walton, J., Zorzi, E.
core   +1 more source

Effect of the number of blades and solidity on the performance of a vertical axis wind turbine [PDF]

open access: yes, 2016
Two, three and four bladed phgr-shape Vertical Axis Wind Turbines are simulated using a free-wake vortex model. Two versions of the three and four bladed turbines are considered, one having the same chord length as the two-bladed turbine and the other ...
Delafin, Pierre-Luc   +3 more
core   +3 more sources

Uncertainty quantification of leakages in a multistage simulation and comparison with experiments [PDF]

open access: yes, 2016
The present paper presents a numerical study of the impact of tip gap uncertainties in a multistage turbine. It is well known that the rotor gap can change the gas turbine efficiency but the impact of the random variation of the clearance height has not ...
Ahlfeld, R   +3 more
core  

A Critical Review on Wind Turbine Power Curve Modelling Techniques and Their Applications in Wind Based Energy Systems

open access: yes, 2016
Power curve of a wind turbine depicts the relationship between output power and hub height wind speed and is an important characteristic of the turbine.
Vaishali Sohoni, S. Gupta, R. Nema
semanticscholar   +1 more source

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