Experimental Investigation of Surge and Stall in a High-Speed Centrifugal Compressor

2015 ◽  
Vol 31 (3) ◽  
pp. 815-825 ◽  
Author(s):  
Zheng Xinqian ◽  
Liu Anxiong
Keyword(s):  
Experimental Investigation ◽  
Centrifugal Compressor ◽  
High Speed

Laser Transit Anemometry Investigation of a High Speed Centrifugal Compressor

1989 ◽  
Author(s):  
David Japikse ◽  
David M. Karon
Keyword(s):  
Experimental Investigation ◽  
Secondary Flow ◽  
Centrifugal Compressor ◽  
Turbulence Intensity ◽  
High Speed ◽  
Flow Regimes ◽  
Compressor Stage ◽  
Blade Passage ◽  
Centrifugal Compressor Stage

A detailed experimental investigation of a small centrifugal compressor stage has been completed using laser transit anemometry. Measurements at the inlet and discharge of an impeller have been made while recording data relative to a blade passage. Classical primary and secondary flow regimes within the rotor have been shown plus several compact “cell-like” regions. Various components of velocity and turbulence intensity are presented. This study has demonstrated the capability of using the laser transit anemometer for investigating the kinematics of small, high speed turbomachinery components.

Instability Pathology of a High Speed Centrifugal Compressor

1999 ◽  
Author(s):  
William C. Oakes ◽  
Patrick B. Lawless ◽  
Sanford Fleeter
Keyword(s):  
Experimental Investigation ◽  
Single Cell ◽  
Centrifugal Compressor ◽  
High Speed ◽  
Rotating Stall ◽  
Mode Pattern

An experimental investigation is performed to characterize a high-speed centrifugal compressor as it approaches instability and during subsequent surge cycles. To achieve this, data are analyzed from the inlet, the diffuser and the exit of the compressor. Analysis of the data indicates the presence of two rotating stall modes prior to and during surge cycles. A nine cell mode pattern is shown to erupt prior to the initial surge cycle. The second rotating stall mode is a single cell mode that coincides with the initiation of the surge cycles. Both stall modes are shown to be located at or near the diffuser.

EXPERIMENTAL INVESTIGATION OF THE INFLUENCE OF VORTEX GENERATORS AND LIQUID INJECTION ON NOISE IN HIGH-SPEED JETS

2012 ◽  
Vol 43 (4) ◽  
pp. 481-496 ◽  
Author(s):  
Valeriy Ivanovich Zapryagaev ◽  
Nikolay Petrovich Kiselev ◽  
Dmitriy Andreevich Gubanov
Keyword(s):  
Experimental Investigation ◽  
High Speed ◽  
Vortex Generators ◽  
Liquid Injection

Experimental Investigation on Cavitation Characteristics of a Three-Groove Journal Bearing

2013 ◽  
Vol 420 ◽  
pp. 47-50
Author(s):  
Ying Yang ◽  
Jing Hua Dai
Keyword(s):  
Experimental Investigation ◽  
High Speed ◽  
Journal Bearing ◽  
Rupture Zone ◽  
Work Characteristics ◽  
Oil Film ◽  
Rotating Speed ◽  
Clear Effect ◽  
Supply Pressure

Under high and super-high speed, oil film of the journal bearing is easy to crack and then becomes cavitation. The existence of cavitation has an important effect on the work characteristics of the shaft. On the journal bearing experiment rig the cavitation characteristics of the three-groove journal beaing were studied. The influences of the shaft rotating speed and supply pressure on cavitation shape were investigated. The results show that rotating speed and supply pressure have a clear effect on the cavitation shape, and the number of cavitation strip in the rupture zone decreases when the supply pressure increases.

High speed centrifugal compressor surge initiation characterization

1996 ◽  
Author(s):  
William Oakes ◽  
Patrick Lawless ◽  
John Fagan ◽  
Sanford Fleeter
Keyword(s):  
Centrifugal Compressor ◽  
High Speed ◽  
Compressor Surge
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