Numerical solution of steady MHD duct flow in a square annulus duct under strong transverse magnetic field

2020 ◽  
pp. 1-8
Author(s):  
M. Prasanna Jeyanthi ◽  
S. Ganesh
Keyword(s):  
Magnetic Field ◽  
Numerical Solution ◽  
Transverse Magnetic Field ◽  
Transverse Magnetic ◽  
Duct Flow ◽  
Strong Transverse

scholarly journals Decay of turbulence in a liquid metal duct flow with transverse magnetic field

2019 ◽  
Vol 867 ◽  
pp. 661-690 ◽  
Author(s):  
Oleg Zikanov ◽  
Dmitry Krasnov ◽  
Thomas Boeck ◽  
Semion Sukoriansky
Keyword(s):  
Magnetic Field ◽  
Transverse Magnetic Field ◽  
Large Scale ◽  
High Amplitude ◽  
Transverse Magnetic ◽  
Duct Flow ◽  
Velocity Fluctuations ◽  
Turbulence Decay ◽  
The Moment ◽  
Typical Length

Decay of honeycomb-generated turbulence in a duct with a static transverse magnetic field is studied via direct numerical simulations. The simulations follow the revealing experimental study of Sukoriansky et al. (Exp. Fluids, vol. 4 (1), 1986, pp. 11–16), in particular the paradoxical observation of high-amplitude velocity fluctuations, which exist in the downstream portion of the flow when the strong transverse magnetic field is imposed in the entire duct including the honeycomb exit, but not in other configurations. It is shown that the fluctuations are caused by the large-scale quasi-two-dimensional structures forming in the flow at the initial stages of the decay and surviving the magnetic suppression. Statistical turbulence properties, such as the energy decay curves, two-point correlations and typical length scales are computed. The study demonstrates that turbulence decay in the presence of a magnetic field is a complex phenomenon critically depending on the state of the flow at the moment the field is introduced.

Transformation of a submerged flat jet under strong transverse magnetic field

2021 ◽  
Vol 134 (2) ◽  
pp. 24003
Author(s):  
D. Krasnov ◽  
Ya. Listratov ◽  
Yu. Kolesnikov ◽  
I. Belyaev ◽  
N. Pyatnitskaya ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Transverse Magnetic Field ◽  
Transverse Magnetic ◽  
Strong Transverse

A note on magnetohydrodynamic duct flow

1969 ◽  
Vol 66 (3) ◽  
pp. 655-662 ◽  
Author(s):  
G. F. Butler
Keyword(s):  
Magnetic Field ◽  
Transverse Magnetic Field ◽  
Transverse Magnetic ◽  
Conducting Fluid ◽  
Thin Wall ◽  
Duct Flow ◽  
Electrically Conducting ◽  
Thin Walls ◽  
Electrically Conducting Fluid

AbstractThis paper is concerned with the problem of the flow of an incompressible electrically conducting fluid along a rectangular duet under a transverse magnetic field. The case in which the walls perpendicular to the field are perfectly conducting and those parallel to the field are non-conducting has been considered by Hunt (1), who derives the solution in two ways; as the limiting cases of the flows with (a) non-conducting walls parallel and thin walls of arbitrary conductivity perpendicular to the field, and (b) thin walls of arbitrary conductivity parallel and perfectly conducting walls perpendicular to the field. We show that these two limiting solutions derived by Hunt are in fact equivalent. In addition, we extend the solution of case (b) above by removing the thin wall restriction.

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