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Monday, July 27, 2020 | History

2 edition of Investigation of normal ionizing shock waves in Argon found in the catalog.

Investigation of normal ionizing shock waves in Argon

by Raymond Joseph Hogan

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  • 30 Currently reading

Published by Naval Postgraduate School in Monterey, California .
Written in English


ID Numbers
Open LibraryOL25327588M

Dynamics of Shock Waves in Magnetic Fields.- Electromagnetic Shock Tubes.- Design and Operation of Electromagnetic Shock Tubes.- Elementary Theory of Electromagnetic Shock Tubes: The Snowplow Model.- Effects of Nonunidimensionality of the Plasma Flow in Coaxial Electromagnetic Shock Tubes.- Piston Problem.- Self-Similar Magnetic Piston Problem in . Citation Brennan MH, Fletcher J, Morrow R Westwood WD () Investigation of the Plasma Produced by a Normal Ionizing Shock Wave Using Polychromator Techniques.

Recently, there have been significant advances in the fields of high-enthalpy hypersonic flows, high-temperature gas physics, and chemistry shock propagation in various media, industrial and medical applications of shock waves, and shock-tube technology. This series contains all the papers and.   Extracorporeal Lithotripsy Lithotripsy is non invasive and an alternative to surgery.. Extracorporeal shock wave lithotripsy uses high energy shock waves that are generated outside the body that pulverizes the stones inside the body. There are two energy sources i.e., piezoelectric and electromagnetic 50

Extracorporeal Shock Wave Therapy (EWST) works by passing shock waves, an intense but short energy wave that travels faster than the speed of sounds into the tissues. Originally used to treat kidney stones in the ’s known as lithotripsy, using acoustic shock waves to break up the stones without the need for surgery. If a linearly -V~olariscd TEi:* wave is propagated in a circul,ar wave guide, which in thc'present case is the shock tube, Fig.3, the plane of polarisation will be rotated by an an+ 0 radians in the presence of zn,:l mcgnetic field H guss and free electrons of number density M cm-' (Refs.


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Investigation of normal ionizing shock waves in Argon by Raymond Joseph Hogan Download PDF EPUB FB2

NAVALPOSTGRADUATESCHOOL Monterey,California THESIS INVESTIGATIONOFNORMALIONIZING SHOCKWAVESINARGON by RaymondJosephHogan ThesisAdvisor: June T   The investigations were performed in argon, and the ionizing shock wave propagated with Mach numbers 12– The magnetic field intensity was T.

We present certain results of an experimental investigation of the propagation of a shock wave S through a magnetohydrodynamic channel of the Faraday by: 1. Solutions to the steady‐state jump equations are obtained for a normal ionizing shock wave propagating into a nonconducting, quiescent gas in an electromagnetic field.

Comparison of these solutions to pure magnetohydrodynamic shocks and ordinary gas shocks indicates that ionizing shocks are hybrids having some properties common to both magnetohydrodynamic and gas by: A spectroscopic investigation of the initial ionization behind strong shock waves in argon was made to determine the role of atomic levels in addition to the first excited state.

A numerical solution of the shock structure equations has been obtained for shock wave profiles in argon, krypton, and xenon gases for a range of Mach numbers from 15 to 40 over a range of initial pressures. The shock thickness and the thickness parameter defined by Cited by: 3.

The plasma is formed by the passage of a strong ionizing shock wave through a neutral gas in the pressure range ;;; p.;;; mtorr. The instantaneous Stark broadened line profiles have been constructed by simultaneously sampling the light intensities at a number of wavelengths within the Hflline by the use of an eight.

channel poly. by: 1. Investigation of the properties of a shock wave arising in a supersonic flow of plasma, passing through a transverse magnetic field. Abstract. In a flow of plasma, set up by an ionizing shock wave and moving through a transverse magnetic field, under definite conditions there arises a gasdynamic shock : S.

Zaitsev, A. Mikhailov, I. Favorskaya. obtained. It is concluded that the manner of formation of a shock wave in mag-netogasdynamics is the same as that in ordinary gasdynamics. But since a e is larger than a speed of sound for ideal gas case, the shock wave formation will be faster in magneto-gas-dynamics for non- ideal gas.

Basic Equations and Formation of Shock Wave. Investigation of Shock Waves in Non-Ideal Gas Under the Action of Magnetic Field Article (PDF Available) in Advances in Pure Mathematics 07(10) January with 51 Reads.

Wedge oblique shock wave control by arc discharge plasma in supersonic airflow was investigated theoretically, experimentally, and numerically in this paper. Using thermal choking model, the change in oblique shock wave was deduced, which refer that the start point of shock wave shifts upstream, the shock wave angle decreases, and its intensity by: The main source of experimental 1D shock wave density data suited for the present purpose has been compiled, and completed with accurate original data by Alsmeyer [7].

In this work the experimental reciprocal thickness of argon and nitrogen 1D shock waves is shown to be well characterized up to Ma = 10, while a few sparse helium. Shock dynamics of strong imploding cylindrical and spherical shock waves with non-ideal gas effects R K Anand Wave Motion (),Cited by: 4.

Self-similar flows behind a gas -ionizing cylindrical shock wave, with radiation heat flux, in a non -ideal gas are. studied. The ionizing shock is assumed to be propagating in a medium at rest with constant density permeated by an azi.

muthal magnetic field. The electrical conductivity of the gas is infinite behind shock and zero ahead of it. A normal ionizing shock wave is one which propagates with its shock front perpendicular to a steady magnetic field into a neutral gas producing dissociation and ionization.

Such waves have been studied theoretically [e.g., ] and experimentally [e.g., ].Cited by: 1. Home > ; Publications > ; AIAA Journal > ; Volume 5, Issue 9 > ; A unified treatment of the relaxation phenomenon in radiating argon plasma by: Such a shock wave is called a gas-ionizing shock or, simply ionizing shock.

The propagation of a ionizing shock has been studied by Greenspan[12,] Greifinger and Cole[13], Christer[14], Rangarao andRamana[15] and Singh[16] in a non-rotating perfect gas. An investigation of the structure of plasma produced by reflected shock waves Physics of Fluids, Vol.

23, No. 1 Radiation effects in a nonequilibrium corner-expansion flow of ionizing argonCited by: The investigation was carried out using steady state magnetic fields normal to the shock front, with a maximum field of gauss.

Initial gas pressures ranged from to Torr. The investigations included studies of the effects of initial pressure, magnetic field, and capacitor bank voltage upon the shock Author: Raymond Joseph. Hogan. Shock-wave simulation results illustrated in Fig.

7 incorporate a spherical phase distort57 with a constant shocked-gas dens59,60,61, shock-wave motion during laser time-of-flight Author: Yi Chen Mazumdar, Yi Chen Mazumdar, Michael E. Smyser, Jeffery D. Heyborne, Mikhail N. Slipchenko, D. Self-Similar Cylindrical Ionizing Shock Waves in a Non-uniform Gas with Radiation Heat-Flux Arvind Kumar Singh Department of Mathematics, ’s College, Gorakhpur, India @ Abstract— Self-similar flows in the background, a gas-ionizing cylindrical shock wave, associated with radiation.

Transition to Much reflexion A- 8 7 G P 8 P A. P P 8 (d) a=cQ FIGIJRE ro-deflexion maps of shock reflexion for various values of tho angle labels correspond to similar labels in figure subscripts N and d refer to configurations according to the .“ Density profiles in argon and nitrogen shock waves measured by the absorption of an electron beam.

” Journal of Fluid Mechanics 74 (3), – Annis, B., and Malinauskas, A. ().Cited by: The investigated shock waves were in the Mach 4 to Mach 14 velocity range in neon and argon gases at pressures from to 5mm Hg. The background gas through which the shock waves subsequently passes is ionized to a nonnegligible degree atmore».