Lagrangian analysis of the formation and mass transport of compressible vortex rings generated by a shock tube

2020 ◽  
Author(s):  
Haiyan Lin ◽  
Yang Xiang ◽  
Hong Liu ◽  
Bin Zhang
Keyword(s):  
Mass Transport ◽  
Shock Tube ◽  
Vortex Rings ◽  
Lagrangian Analysis

1100 MASS TRANSPORT USING VORTEX RINGS WITH SWIRL

2013 ◽  
Vol 2013.4 (0) ◽  
pp. _1100-1_-_1100-6_
Author(s):  
Naitoh Takashi ◽  
Okura Nobuyuki ◽  
Okude Muneshige ◽  
Sumitomo Osamu
Keyword(s):  
Mass Transport ◽  
Vortex Rings

scholarly journals Characteristics of shock tube generated compressible vortex rings at very high shock Mach numbers

2021 ◽  
Vol 33 (9) ◽  
pp. 096105
Author(s):  
Sajag Poudel ◽  
Lakshmana Chandrala ◽  
Debopam Das ◽  
Ashoke De
Keyword(s):  
Shock Tube ◽  
Vortex Rings ◽  
High Shock ◽  
Mach Numbers ◽  
Very High

scholarly journals Quantitative Measurement of Mass Transport Using Vortex Rings

2011 ◽  
Vol 77 (775) ◽  
pp. 557-567 ◽  
Author(s):  
Takashi NAITOH ◽  
Nobuyuki OKURA ◽  
Muneshige OKUDE ◽  
Yusuke UTSUMI
Keyword(s):  
Mass Transport ◽  
Quantitative Measurement ◽  
Vortex Rings

Formation and dynamics of compressible vortex rings generated by a shock tube

2020 ◽  
Vol 61 (3) ◽  
Author(s):  
Liang Qin ◽  
Yang Xiang ◽  
Haiyan Lin ◽  
Hong Liu
Keyword(s):  
Shock Tube ◽  
Vortex Rings

A study of the counter rotating vortex rings interacting with the primary vortex ring in shock tube generated flows

2013 ◽  
Vol 45 (2) ◽  
pp. 025506 ◽  
Author(s):  
T Murugan ◽  
S De ◽  
C L Dora ◽  
D Das ◽  
P Prem Kumar
Keyword(s):  
Shock Tube ◽  
Vortex Ring ◽  
Vortex Rings ◽  
Primary Vortex

scholarly journals Mass transport using the series of vortex rings with swirl

2014 ◽  
Vol 9 (3) ◽  
pp. JFST0060-JFST0060
Author(s):  
Takashi NAITOH ◽  
Nobuyuki OKURA ◽  
Osamu SUMITOMO
Keyword(s):  
Mass Transport ◽  
Vortex Rings

scholarly journals Flow Dynamics in a Model of a Left Ventricle with Different Mitral Valve Orientations

Fluids ◽  
2021 ◽  
Vol 6 (12) ◽  
pp. 428
Author(s):  
Ghassan Maraouch ◽  
Lyes Kadem
Keyword(s):  
Energy Dissipation ◽  
Mitral Valve ◽  
Left Ventricle ◽  
Residence Time ◽  
Flow Dynamics ◽  
Vortex Rings ◽  
Lagrangian Analysis ◽  
Particle Residence Time ◽  
Ventricle Volume ◽  
Different Levels

The formation of vortex rings at valve leaflets during ventricular inflow has been a topic of interest for many years. It is generally accepted nowadays that the purpose of vortex rings is to conserve energy, reduce the workload on the heart, and minimize particle residence time. We investigated these claims by testing three different levels of annulus angle for the mitral valve: a healthy case, a slightly angled case (20°), and a highly angled case (46°). Circulation was determined to be reversed in the non-healthy case, with a dominant counterclockwise rotation instead of clockwise. Viscous energy dissipation was highest in the slightly angled case, followed by the healthy case and then the highly angled case. A Lagrangian analysis demonstrated that the healthy case resulted in the least amount of stasis, requiring eight cardiac cycles to evacuate 99% of initial ventricle volume compared to the 16 and 13 cardiac cycles required by the slightly angled and highly angled cases, respectively.

Models of Thermodynamic Properties of Prominences

1979 ◽  
Vol 44 ◽  
pp. 349-355
Author(s):  
R.W. Milkey
Keyword(s):  
Thermodynamic Properties ◽  
Mass Transport ◽  
Emission Spectrum ◽  
Thermodynamic Parameters ◽  
Working Group ◽  
Physical Processes ◽  
Theoretical Concepts ◽  
Group 3 ◽  
Observational Techniques

The focus of discussion in Working Group 3 was on the Thermodynamic Properties as determined spectroscopically, including the observational techniques and the theoretical modeling of physical processes responsible for the emission spectrum. Recent advances in observational techniques and theoretical concepts make this discussion particularly timely. It is wise to remember that the determination of thermodynamic parameters is not an end in itself and that these are interesting chiefly for what they can tell us about the energetics and mass transport in prominences.

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