|
|
|
|
|
Yaguang Heng, Bo Hu, Qifeng Jiang, Zhengwei Wang and Xiaobing Liu
A review on the rotating stall in the vaneless diffuser of centrifugal compressors is presented showing that different stall modes characterized by different numbers of cells can be detected within the diffuser even if the operating condition remains unc...
ver más
|
|
|
|
|
|
|
|
|
|
|
Elias Sundström, Mihai Mihaescu, Marco Giachi, Elisabetta Belardini and Vittorio Michelassi
|
|
|
|
|
|
|
|
|
|
|
Elias Sundström, Mihai Mihaescu, Marco Giachi, Elisabetta Belardini and Vittorio Michelassi
Numerical simulations based on the large eddy simulation approach were conducted with the aim to explore vaneless diffuser rotating stall instability in a centrifugal compressor. The effect of the impeller blade passage was included as an inlet boundary ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Pei-Yuan Li, Chu-Wei Gu and Yin Song
This paper presents an optimization design method for centrifugal compressors based on one-dimensional calculations and analyses. It consists of two parts: (1) centrifugal compressor geometry optimization based on one-dimensional calculations and (2) mat...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yunfeng Wu, Qingkuo Li, Hang Yuan, Ziliang Li, Shiji Zhou, Ge Han and Xingen Lu
High-pressure ratio centrifugal compressors? diffusers face challenges from high-velocity, non-uniform flow at the impeller outlet, decreasing efficiency and stall margin. To address this, this paper presents a novel vaned diffuser passage design method ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xavier Flete, Nicolas Binder, Yannick Bousquet and Sandrine Cros
In the current study, full-stage unsteady simulations were performed to investigate rotating instability inception mechanisms in a particularly large tip clearance centrifugal compressor with a vaneless diffuser and a volute. Four operating points along ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Pierre Duquesne, Joffrey Chanéac, Gabriel Mondin and Jérôme Dombard
Boundary-layer flow separation is a common flow feature in many engineering applications. The consequences of flow separation in turbomachinery can be disastrous in terms of performance, stability and noise. In this context, flow separation is particular...
ver más
|
|
|
|
|
|
|
|
|
|
|
Mohammad Mojaddam and Keith R. Pullen
Centrifugal compressor performance is affected by many parameters, optimization of which can lead to superior designs. Recognizing the most important parameters affecting performance helps to reduce the optimization process cost. Of the compressor compon...
ver más
|
|
|
|
|
|
|
|
|
|
|
Kirill Kabalyk, Andrzej Jaeschke, Grzegorz Liskiewicz, Michal Kulak, Tomasz Szydlowski and Robert Pietruszewski
The article describes an assessment of possible changes in constant fatigue life of a medium flow-coefficient centrifugal compressor impeller subject to operation at close-to-surge point. Some aspects of duct acoustics are additionally analyzed. The expe...
ver más
|
|
|
|
|
|
|
|
|
|
|
Daniel Hermann, Manfred Wirsum, Douglas Robinson and Philipp Jenny
State-of-the-art centrifugal compressor units utilised in pipeline and in energy storage applications face the challenge of flexible and highly efficient operation. Geometric contouring on the hub side near a vaned diffuser affects the flow in a way whic...
ver más
|
|
|
|
|
|