Results 61 to 70 of about 1,930 (243)
ECL5/CATANA: Transition from Non-Synchronous Vibration to Rotating Stall at Transonic Speed
International Journal of Turbomachinery, Propulsion and PowerNon-synchronous vibration (NSV), flutter, or rotating stall can cause severe blade vibrations and limit the operating range of compressors and fans. To enhance the understanding of these phenomena, this study investigated the corresponding mechanisms in ...
Alexandra P. Schneider +5 more
doaj +1 more source
Energies, 2019 Dredge pumps are usually operated at part-load conditions, in which the low-solidity centrifugal impeller could experience large internal energy dissipation, related to flow separation and vortices.
Xiaoran Zhao +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 +3 more sources
MachinesCasing treatments improve compressor stability but often at the expense of compressor efficiency. In this study, the differential entropy generation rate (DEGR) was applied to both efficiency evaluation and stall margin estimation.
Jingyuan Ma, Yongsheng Wang, Feng Lin
doaj +1 more source
International Journal of Rotating Machinery, 2004 The rotating stall is a key problem for achieving a good working range of a centrifugal compressor and a detailed understanding of the phenomenon is very important to anticipate and avoid it.
Giovanni Ferrara +2 more
doaj +1 more source
Journal of the American Oil Chemists' Society, EarlyView.ABSTRACT In chocolate‐coated products, oil migration can lead to chocolate softening and discoloration, filling hardening, and reduced consumer acceptance. This study examined three fats (soy‐, palm‐, and palm‐kernel (PK) based), crystallized under different conditions (cooling rate and high intensity ultrasound (HIU)) with differing oil binding ...
Audrey Lidgard +2 more
wiley +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT This study examines how perceived overqualification (POQ) becomes a source of work alienation by focusing on interpersonal dynamics in the workplace. Drawing on relational and power‐based perspectives, we propose that abusive supervision serves as a key mechanism linking POQ to work alienation, while workplace ostracism conditions the strength
Ahmet Hakan Özkan
wiley +1 more source
Biodiversity Strategies in Action—Empirical Evidence From the Food Value Chain
Business Strategy and the Environment, EarlyView.ABSTRACT There is an increasing need for better understanding of firm activities that contribute to biodiversity preservation. Panwar, Ober, and Pinkse offer a valuable typology of corporate biodiversity protection strategies based on temporal and spatial dimensions, namely, the preloss (proactive) strategies of conservation and compensation, and the ...
Joanna Scott‐Kennel +2 more
wiley +1 more source
International Journal of Rotating Machinery, 2012 The ability to predict the nature of instabilities is highly important from the compressor design point of view since their consequences could result in widely varying difficulties with the fluid dynamic performance of the systems.
Ananth Sivaramakrishnan Malathi +1 more
doaj +1 more source
Journal of the Global Power and Propulsion Society, 2018 The flow structures in an axial compressor that lead to short-length scale stall inception are investigated using optical measurements in a high-speed one and a half stage compressor.
Christoph Brandstetter +1 more
doaj +1 more source