Oblique collision and reconnection of a vortex ring with a vortex tube

2021 ◽  
Vol 33 (12) ◽  
pp. 125110
Author(s):  
Van Luc Nguyen ◽  
Long H. Duong ◽  
Nam T. P. Le
Keyword(s):  
Vortex Ring ◽  
Vortex Tube ◽  
Oblique Collision

scholarly journals Implicit LES for Supersonic Microramp Vortex Generator: New Discoveries and New Mechanisms

2011 ◽  
Vol 2011 ◽  
pp. 1-15 ◽  
Author(s):  
Qin Li ◽  
Chaoqun Liu
Keyword(s):  
Vortex Ring ◽  
Vortex Tube ◽  
Vortex Generator ◽  
Shock Interaction ◽  
Surface Separation ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Boundary Layer Interaction ◽  
Fifth Order ◽  
Made In

This paper serves as a summary of our recent work on LES for supersonic MVG. An implicitly implemented large eddy simulation (ILES) by using the fifth-orderWENOscheme is applied to study the flow around the microramp vortex generator (MVG) at Mach 2.5 andRe⁡θ=1440. A number of new discoveries on the flow around supersonic MVG have been made including spiral points, surface separation topology, source of the momentum deficit, inflection surface, Kelvin-Helmholtz instability, vortex ring generation, ring-shock interaction, 3D recompression shock structure, and influence of MVG decline angles. Most of the new discoveries, which were made in 2009, were confirmed by experiment conducted by the UTA experimental team in 2010. A new 5-pair-vortex-tube model near the MVG is given based on the ILES observation. The vortex ring-shock interaction is found as the new mechanism of the reduction of the separation zone induced by the shock-boundary layer interaction.

scholarly journals Vortex Ring-Vortex Tube Interactions.

2002 ◽  
Vol 68 (674) ◽  
pp. 2688-2694
Author(s):  
Hitoshi ISHIKAWA ◽  
Seiichiro IZAWA ◽  
Osamu MOCHIZUKI ◽  
Masaru KIYA
Keyword(s):  
Vortex Ring ◽  
Vortex Tube ◽  
Ring Vortex

Two interacting vortex ring pairs and their sound generation

AIAA Journal ◽  
2000 ◽  
Vol 38 ◽  
pp. 79-86 ◽  
Author(s):  
N. W. M. Ko ◽  
R. C. K. Leung ◽  
K. Lam
Keyword(s):  
Vortex Ring ◽  
Sound Generation

DEVELOPMENT OF A NEW ENTRANCE CHAMBER FOR CONTINUOUS VORTEX TUBE OPERATION AT LOW PRESSURES

2017 ◽  
Author(s):  
Maria Eugenia V. da Silva ◽  
Paulo Alexandre Costa Rocha ◽  
Hugo Alberto López Clemente
Keyword(s):  
Vortex Tube ◽  
Low Pressures

Vortex Ring Generator

1998 ◽  
Author(s):  
George Lucey ◽  
Louis Jasper
Keyword(s):  
Vortex Ring
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