Measurement of shock velocity from cavitation collapse in high static pressure liquids using Schlieren and shadowgraphy

2007 ◽  
Vol 122 (5) ◽  
pp. 2992
Author(s):  
James Schaefer ◽  
Ross A. Tessien ◽  
D. Felipe Gaitan
Keyword(s):  
Static Pressure ◽  
Shock Velocity ◽  
High Static Pressure

Fiber-optic sensing of high static pressure

1990 ◽  
Vol 5 (1-6) ◽  
pp. 776-778 ◽  
Author(s):  
Wojtek J. Bock ◽  
Mario Beaulieu
Keyword(s):  
Static Pressure ◽  
Fiber Optic ◽  
High Static Pressure ◽  
Fiber Optic Sensing

Nonaxisymmetric Study of Tip Leakage Flow in a Centrifugal Compressor With a Volute During Stall Process

2019 ◽  
Vol 141 (12) ◽  
Author(s):  
Ce Yang ◽  
Botai Su ◽  
Li Fu ◽  
Hang Zhang
Keyword(s):  
Centrifugal Compressor ◽  
Static Pressure ◽  
Leading Edge ◽  
Work Capacity ◽  
Tip Clearance ◽  
Leakage Flow ◽  
Tip Leakage Flow ◽  
Tip Leakage ◽  
High Static Pressure ◽  
Circumferential Nonuniformity

Abstract Tip leakage flow (TLF) patterns, which affect compressor performance, are closely related to compressor stability. To date, minimal attention has been given to circumferential nonuniformity of the TLF in a centrifugal compressor with a nonaxisymmetric volute structure. In this study, the circumferential difference of the TLF in a centrifugal compressor with a volute during the stall process is analyzed. The circumferential nonuniformity of tip leakage vortex (TLV) trajectories, loading distribution near the tip, and distance between the TLV core and the leading edge (LE) of splitter blades were also investigated. It is shown that in the circumferential direction, there are two peaks associated with the angle (α) between the TLV trajectory of the seven main blades and the axial direction. As the stall process progresses, the blade whose LE is affected by the high static pressure band (PP) induced by the volute tongue (VT) loses its work capacity first and the α difference between this blade and the other blades increases. In addition, the tip loading and TLF velocity of the blade whose LE is affected by the high static pressure band induced by the VT are at a minimum, and the flow loss in the tip clearance is higher. There is a phenomenon of the TLV breakdown. When the blade trailing edge (TE) is located in the low static pressure region, TLV streamlines appear as a significant turn at the breakdown point. However, the TLV streamlines at other circumferential positions do not exhibit this phenomenon.

A combined theoretical and experimental investigation of uranium dioxide under high static pressure

2015 ◽  
Vol 27 (26) ◽  
pp. 265401 ◽  
Author(s):  
J C Crowhurst ◽  
J R Jeffries ◽  
D Åberg ◽  
J M Zaug ◽  
Z R Dai ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Uranium Dioxide ◽  
Static Pressure ◽  
High Static Pressure

Crystallization of amorphous carbon at high static pressure and high temperature

1988 ◽  
Vol 23 (2) ◽  
pp. 422-428 ◽  
Author(s):  
Akifumi Onodera ◽  
Koji Higashi ◽  
Yasushi Irie
Keyword(s):  
High Temperature ◽  
Amorphous Carbon ◽  
Static Pressure ◽  
High Static Pressure
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