Better understanding the onset of turbulence approaching Mach 5

Scilight ◽  
2019 ◽  
Vol 2019 (6) ◽  
pp. 060006
Author(s):  
Mark Marchand
Keyword(s):  
Onset Of Turbulence

scholarly journals Streamwise-Localized Solutions at the Onset of Turbulence in Pipe Flow

2013 ◽  
Vol 110 (22) ◽  
Author(s):  
M. Avila ◽  
F. Mellibovsky ◽  
N. Roland ◽  
B. Hof
Keyword(s):  
Pipe Flow ◽  
Localized Solutions ◽  
Onset Of Turbulence

The onset of turbulence in physiological pulsatile flow in a straight tube

1998 ◽  
Vol 24 (1) ◽  
pp. 1-9 ◽  
Author(s):  
J. Peacock ◽  
T. Jones ◽  
C. Tock ◽  
R. Lutz
Keyword(s):  
Pulsatile Flow ◽  
Straight Tube ◽  
Onset Of Turbulence

scholarly journals Numerical Simulation of Turbulence Flows in Shear Layer

2014 ◽  
Vol 59 (3) ◽  
pp. 1155-1158
Author(s):  
S.V. Fortova
Keyword(s):  
Turbulent Flows ◽  
Shear Layers ◽  
Development Stage ◽  
Inertial Range ◽  
Problem Definition ◽  
Spatial Problem ◽  
Hydrodynamic Instabilities ◽  
Onset Of Turbulence ◽  
Flow Stage ◽  
Vortex Cascade

Abstract For various problems of continuum mechanics described by the equations of hyperbolic type, the comparative analysis of scenarios of development of turbulent flows in shear layers is carried out. It is shown that the development of the hydrodynamic instabilities leads to a vortex cascade that corresponds to the development stage of the vortices in the energy and the inertial range during the transition to the turbulent flow stage. It is proved that for onset of turbulence the spatial problem definition is basic. At the developed stage of turbulence the spectral analysis of kinetic energy is carried out and the Kolmogorov “-5/3” power law is confirmed.

The Onset of Turbulence: Insights Into the Navier-Stokes Equations

2017 ◽  
Author(s):  
Carl E. Rathmann
Keyword(s):  
Stokes Equations ◽  
Direct Consequence ◽  
Reynolds Numbers ◽  
Navier Stokes ◽  
Navier Stokes Equation ◽  
Navier Stokes Equations ◽  
Fluid Behavior ◽  
Onset Of Turbulence ◽  
And Mathematics ◽  
High Reynolds

For well over 150 years now, theoreticians and practitioners have been developing and teaching students easily visualized models of fluid behavior that distinguish between the laminar and turbulent fluid regimes. Because of an emphasis on applications, perhaps insufficient attention has been paid to actually understanding the mechanisms by which fluids transition between these regimes. Summarized in this paper is the product of four decades of research into the sources of these mechanisms, at least one of which is a direct consequence of the non-linear terms of the Navier-Stokes equation. A scheme utilizing chaotic dynamic effects that become dominant only for sufficiently high Reynolds numbers is explored. This paper is designed to be of interest to faculty in the engineering, chemistry, physics, biology and mathematics disciplines as well as to practitioners in these and related applications.

scholarly journals Computer experiments on the onset of turbulence

2012 ◽  
Author(s):  
Todd H. Weisgraber ◽  
Berni J. Alder
Keyword(s):  
Computer Experiments ◽  
Onset Of Turbulence

Theory of early onset of turbulence in a dispersion

1972 ◽  
Vol 9 (3) ◽  
pp. 252-255
Author(s):  
Yu. A. Buevich ◽  
V. M. Safrai
Keyword(s):  
Early Onset ◽  
Onset Of Turbulence
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