Interaction of Cylindrical Shock Wave with Applied Magnetic Field Parallel to the Axis

1962 ◽  
Vol 17 (10) ◽  
pp. 1663-1663 ◽  
Author(s):  
Akira Sakurai
Keyword(s):  
Magnetic Field ◽  
Shock Wave ◽  
Applied Magnetic Field ◽  
Cylindrical Shock Wave ◽  
Field Parallel

Mechanism analysis of magnetohydrodynamic shock control in hypersonic flow

2021 ◽  
pp. 095441002110425
Author(s):  
Shichao Luo ◽  
Jun Liu ◽  
Hao Jiang ◽  
Junyuan Wang
Keyword(s):  
Magnetic Field ◽  
Shock Wave ◽  
Lorentz Force ◽  
Applied Magnetic Field ◽  
Oblique Shock ◽  
Mechanism Analysis ◽  
Dipole Magnet ◽  
Counter Flow ◽  
Shock Control ◽  
Magnetohydrodynamic Shock

The effects of external magnetic fields on the shock-wave configuration at hypersonic plasma flow field are investigated in this paper. A series of numerical simulations over various geometry configurations, namely, a blunt body and a fixed-geometry inlet forebody, have been conducted by varying the applied magnetic field under different freestream conditions. Results show that magnetohydrodynamic shock control capabilities under three types of magnetic field are ranked from weak to strong as dipole magnet, solenoid magnet, and uniform magnet field. Under the same applied magnetic field, it is easier to deflect the shock at a relatively high altitude condition, compared with the low altitude case. The bow shock standoff distance is dependent on the distribution of counter-flow Lorentz force right after shock in the stagnation region. For the oblique shock control, the function of two components of Lorentz force is different that the counter-flow one decelerates the flow and increases the shock-wave angle, while the normal one squeezes the oblique shock and deflects the streamlines.

The influence of magnetic field upon the collapse of a cylindrical shock wave

Meccanica ◽  
2012 ◽  
Vol 48 (4) ◽  
pp. 841-850 ◽  
Author(s):  
L. P. Singh ◽  
S. D. Ram ◽  
D. B. Singh
Keyword(s):  
Magnetic Field ◽  
Shock Wave ◽  
Cylindrical Shock Wave

scholarly journals SIMILARITY SOLUTIONS FOR CYLINDRICAL SHOCK WAVE IN SELF-GRAVITATING NON-IDEAL GAS WITH AXIAL MAGNETIC FIELD: ISOTHERMAL FLOW

2021 ◽  
Author(s):  
Nandita Gupta ◽  
Kajal Sharma ◽  
Rajan Arora
Keyword(s):  
Magnetic Field ◽  
Shock Wave ◽  
Lie Group ◽  
Axial Magnetic Field ◽  
Similarity Solutions ◽  
Ideal Gas ◽  
Isothermal Flow ◽  
Field Variation ◽  
Cylindrical Shock Wave ◽  
Lie Group Of Transformations

The purpose of this study is to obtain the solution using the Lie group of symmetry method for the problem of propagating magnetogasdynamic strong cylindrical shock wave in a self-gravitating non-ideal gas with the magnetic field which is taken to be axial. Here, isothermal flow is considered. In the undisturbed medium, varying magnetic field and density are taken. Out of four different cases, only three cases yield the similarity solutions. Numerical computations have been performed for the cases of power-law and exponential law shock paths, to find out the behavior of flow variables in the flow-field immediately behind the shock. Similarity solutions are carried out by taking arbitrary constants in the expressions of infinitesimals of the Lie group of transformations. Also, the study of the present work provides a clear picture of whether and how the variations in the non-ideal parameter of the gas, Alfven-Mach number, adiabatic exponent, ambient magnetic field variation index and gravitational parameter affect the propagation of shock and the flow behind it. Software package “MATLAB” is used for all the computations.

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