Kinematic features of the flow on the surface of a body consisting of a spherical segment joined to an inverted cone

1982 ◽  
Vol 17 (2) ◽  
pp. 282-286
Author(s):  
G. N. Andreev ◽  
A. I. Glagolev ◽  
A. I. Zubkov ◽  
B. E. Lyagushin
Keyword(s):  
Spherical Segment ◽  
Inverted Cone

Compact Wideband Inverted Cone Combined Spherical Segment Antenna

2009 ◽  
Vol 23 (7) ◽  
pp. 935-940 ◽  
Author(s):  
Y.-H. Huang ◽  
J. Ma ◽  
S.-G. Zhou ◽  
Q.-Z. Liu
Keyword(s):  
Spherical Segment ◽  
Inverted Cone

Compact Wideband Inverted Cone Combined Spherical Segment Antenna

2009 ◽  
Vol 23 (7) ◽  
pp. 935-940
Author(s):  
Y.-H. Huang ◽  
J. Ma ◽  
S.-G. Zhou ◽  
Q.-Z. Liu
Keyword(s):  
Spherical Segment ◽  
Inverted Cone

Design and Construction of Fly Ash Silo with Inverted Cone

2012 ◽  
Vol 22 (3) ◽  
pp. 391-394 ◽  
Author(s):  
Paul Teeuwen ◽  
Wouter Claassen ◽  
Maarten Baan
Keyword(s):  
Fly Ash ◽  
Inverted Cone ◽  
Design And Construction

Pressure distribution on the surface of a spherical segment entering a compressible fluid

1986 ◽  
Vol 21 (2) ◽  
pp. 174-179
Author(s):  
V. A. Eroshin ◽  
G. A. Konstantinov ◽  
N. I. Romanenkov ◽  
Yu. L. Yakimov
Keyword(s):  
Pressure Distribution ◽  
Compressible Fluid ◽  
Spherical Segment

scholarly journals PIV-Based Acoustic Pressure Measurements of a Single Bubble near the Elastic Boundary

Micromachines ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 637
Author(s):  
Qidong Yu ◽  
Zhicheng Xu ◽  
Jing Zhao ◽  
Mindi Zhang ◽  
Xiaojian Ma
Keyword(s):  
Flow Structure ◽  
Acoustic Pressure ◽  
Transient Flow ◽  
Single Bubble ◽  
Rigid Boundary ◽  
Inverted Cone ◽  
Migration Direction ◽  
Elastic Boundary ◽  
Image Velocimetry ◽  
Spark Bubble

The objective of this paper was to investigate acoustic pressure waves and the transient flow structure emitted from the single bubble near an elastic boundary based on the particle image velocimetry (PIV). A combination of an electric-spark bubble generator and PIV were used to measure the temporal bubble shapes, transient flow structure, as well as the mid-span deflection of an elastic boundary. Results are presented for three different initial positions near an elastic boundary, which were compared with results obtained using a rigid boundary. A formula relating velocity and pressure was proposed to calculate the acoustic pressure contours surrounding a bubble based on the velocity field of the transient flow structure obtained using PIV. The results show the bubbles near the elastic boundary presented a “mushroom” bubble and an inverted cone bubble. Based on the PIV-measured acoustic pressure contours, a significant pressure difference is found between the elastic boundary and the underside of the bubble, which contributed to the formation of the “mushroom” bubble and inverted cone bubble. Furthermore, the bubbles had opposite migration direction near rigid and elastic boundaries, respectively. In detail, the bubble was repelled away from the elastic boundary and the bubble was attracted by the rigid boundary. The resultant force made up of a Bjerknes force and buoyancy force dominated the migration direction of the bubble.

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