Frequency Investigation on Unsteadiness of Shock-Vortex Ring Interaction

2018 ◽  
Author(s):  
Xiangrui Dong ◽  
Yonghua Yan ◽  
Yong Yang ◽  
Chaoqun Liu
Keyword(s):  
Vortex Ring ◽  
Ring Interaction

Spectrum study on unsteadiness of shock wave–vortex ring interaction

2018 ◽  
Vol 30 (5) ◽  
pp. 056101 ◽  
Author(s):  
Xiangrui Dong ◽  
Yonghua Yan ◽  
Yong Yang ◽  
Gang Dong ◽  
Chaoqun Liu
Keyword(s):  
Shock Wave ◽  
Vortex Ring ◽  
Ring Interaction

scholarly journals Numerical study on thoracic aortic aneurysms : the aneurysms aggravation effects on the seconda rythme flows motion

Mechanika ◽  
2020 ◽  
Vol 26 (5) ◽  
pp. 407-415
Author(s):  
Mohammed Ilies ARAB ◽  
Mohamed BOUZIT ◽  
Houari AMEUR ◽  
Youcef KAMLA
Keyword(s):  
Vortex Ring ◽  
Vascular System ◽  
Numerical Study ◽  
Blood Rheology ◽  
Aortic Aneurysms ◽  
Hydrodynamic Instabilities ◽  
Thoracic Aortic Aneurysms ◽  
Secondary Motion ◽  
Ring Interaction ◽  
Ring Phenomenon

It is Well know  that there is a strong correlation between artery wall diseases and the flow structure disturbance. Aneurysms are enlargements situated at different but specifics parts of the vascular system; it is a silent diseas that evolves in time. The thoracic aortic aneurysms  (T. A. A) remains relatively unstudied and therefore the present study aimis is to clarify the effects of the  (T . A. A) evolution and the geometrical variations on both hydrodynamic instabilities inside the aortic bulge especially the vortex ring phenomenon and the secondary motion (Dean and lyne vortices) downsream the aneurysms.  Two different cases of asymmetric enlargements in the ascending part of the aortic are studied for both newtonien and the shear-thinning model to mimic the blood rheology inside the aneurysms bulge in order to investigate both parameters impact on the vortex ring behavior. Results schowed that the blood rheoligy effects the propagation velocity while the aneurysms size influences the vortex ring rupture,  the motion of the ring interaction with an inclined wall phenomenon. Results also showed that vortex ring disturbs the boundary layer and therefore the secondary motion in the rest of the aorta.

scholarly journals Numerical Simulation of a Vortex Ring Interaction with a Density Interface

1991 ◽  
Vol 3 (9) ◽  
pp. 2028-2028 ◽  
Author(s):  
Daniel L. Marcus ◽  
John B. Bell ◽  
Michael Welcome ◽  
Michael Allison
Keyword(s):  
Numerical Simulation ◽  
Vortex Ring ◽  
Density Interface ◽  
Ring Interaction

3. Shock/vortex ring interaction and the generation of acoustic waves (2)

2001 ◽  
Vol 3 (4) ◽  
pp. 309-309
Author(s):  
Z. Ding ◽  
M. Y. Hussaini ◽  
G. Erlebacher
Keyword(s):  
Vortex Ring ◽  
Acoustic Waves ◽  
Ring Interaction

Vortex ring interaction by the vortex method

1988 ◽  
pp. 23-36 ◽  
Author(s):  
Christopher Anderson ◽  
Claude Greengard
Keyword(s):  
Vortex Ring ◽  
Vortex Method ◽  
Ring Interaction

Scattered waves generated by shock wave and vortex ring interaction

2000 ◽  
Vol 27 (2) ◽  
pp. 65-90 ◽  
Author(s):  
Tarou Shimizu ◽  
Yodai Watanabe ◽  
Tsutomu Kambe
Keyword(s):  
Shock Wave ◽  
Vortex Ring ◽  
Ring Interaction

Vortex Ring Interaction Studies with a Cylinder and a Sphere

2006 ◽  
Author(s):  
Ran An ◽  
Diamantis Kounadis ◽  
Hossein Zare-Behtash ◽  
Konstantinos Kontis ◽  
John Edwards
Keyword(s):  
Vortex Ring ◽  
Interaction Studies ◽  
Ring Interaction
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