Results 41 to 50 of about 16,478 (310)
Cascade Testing and CFD Applied to Gas Turbine Performance Improvement with Compressor Cleaning [PDF]
, 2010 With the growing interest in life cycle costs for heavy-duty gas turbines, equipment operators are investigating the trade off between performance improvements and associated maintenance costs. One of the key factors leading to performance degradation
Gannan, Aiad
core
AerospaceAdverse pressure gradients are intrinsic to compressor flow behavior and are further intensified by secondary effects associated with rotor tip clearance flow interactions. Tip clearance generates leakage flow, which leads to the formation of tip leakage
Pedro Seiti Endo +4 more
doaj +1 more source
TO THE OPTIMUM DESIGN OF THE AXIAL MULTI-STAGE COMPRESSOR
Авіаційно-космічна техніка та технологія, 2017 The work is devoted to the development of an integrated approach to the aerodynamic improvement of the blade vanes of multistage axial compressors of gas turbine engines.
Владимир Петрович Герасименко +1 more
doaj +1 more source
Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source
Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Experimental Investigation of Rotor-Stator Interaction in Axial-Flow Turbines and Compressors
International Journal of Rotating Machinery, 1998 Detailed results of unsteady flow measurements in a stator-rotor-stator assembly of an axial-flow turbine as well as an inlet guide vane-rotor-stator formation of an axial-flow compressor are presented in this paper.
Heinz E. Gallus
doaj +1 more source
Energies, 2023 An axial compressor has high efficiency under design conditions, but its stable working range is narrow. Adjusting the rotational speed can effectively expand the stable working range.
Pengfei Li +4 more
doaj +1 more source
Robustness of rotating stall control for axial-flow compressors
Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002 Feedback control has been pursued to address the rotating stall problem in axial flow compressors in order to extend the stable operating range and to improve engine performance. These controllers guarantee the stability of the bifurcated operating solution near the stall point.
Ali Tahmasebi, Xiang Chen
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source
Experimental and numerical investigation of a compressor cascade at highly negative incidence [PDF]
, 2011 The performance prediction of axial flow compressors and turbines still relies on the stationary testing of blade cascades. Most of the blade testing studies are done for operating conditions close to the design point or in off-design areas not too ...
Grech, N. +4 more
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