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Wednesday, August 12, 2020 | History

2 edition of Experimental investigations of normal ionizing shock waves found in the catalog.

Experimental investigations of normal ionizing shock waves

Leslie S. Levine

Experimental investigations of normal ionizing shock waves

by Leslie S. Levine

  • 390 Want to read
  • 10 Currently reading

Published in [n.p.] .
Written in English

    Subjects:
  • Plasma waves.,
  • Shock waves.

  • Edition Notes

    Statementby Leslie S. Levine.
    Classifications
    LC ClassificationsQC718 .L44
    The Physical Object
    Pagination159 l.
    Number of Pages159
    ID Numbers
    Open LibraryOL5714895M
    LC Control Number70286424

    Theoretical and experimental Investigations of shock wave consolidation processes of Ti-Al nano sized and ultra-disperse powder compositions are discussed. For theoretical calculations of the shock wave loaded materials were used the hydrodynamic theory and experimental adiabatic of Ti and normal and tangential stresses in the cylindrical steel tube (containers of Ti-Al reaction. Experimental study of shock wave propagation and its influence on the spontaneous ignition during high-pressure hydrogen release through a tube Experimental Study of Normal Ionizing Shock.

      Experimental Investigation of Air Radiation from Behind a Strong Shock Wave. Master Equation Analysis of Post Normal Shock Waves of Nitrogen. Jae Gang Kim and. Book: All Authors / Contributors: Transverse Shock Waves in Nonmagnetized and Partly Magnetized Plasmas.- Plasma Polarization in Transverse Shock Waves.- Experimental Investigations of Transverse Shock Waves in Plasma.- Structures of Switch-On Shock Waves.- Boundary Conditions and the Shock Adiabat.- Switch-On.

    Measurements of the electron density of a transient hydrogen plasma have been made by a study of the Stark broadening of the emitted Hfl radiation. 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.   Experimental study of unsteadiness in supersonic shock-wave/turbulent boundary-layer interactions with separation 3 February | The Aeronautical Journal, Vol. , No. Behaviour of unsteady transonic shock/boundary layer interactions with three-dimensional effects.


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Experimental investigations of normal ionizing shock waves by Leslie S. Levine Download PDF EPUB FB2

Experiments have been conducted on normal ionizing shock waves produced in a coaxial electromagnetic shock tube. Steady shock velocities were measured as a function of initial gas pressure, drive current, and applied axial magnetic field. The Cited by: A coaxial electromagnetic shock tube has been used to study normal ionizing shocks propagating through hydrogen.

An experiment is described which produced plane switch‐on ionizing shocks. Quantitative studies were conducted covering the sub‐Alfvénic and trans‐Alfvénic by: The problem of possible structures of normal ionizing shock waves is studied.

On the basis of the general theory of ionizing shock waves Experimental investigations of normal ionizing shock waves book magnetic fields previously developed Liberman and. The reflected wave can be either a shock wave or a release wave, depending on the relative impedances of the two materials.

The second example on the right is that of the wave interaction of two normal colliding shock waves within one material. Two reflected shock waves of differing amplitudes is the consequence of this wave interaction.

A shock wave which propagates into a non-conducting magnetized gas with sufficient strength to render it conducting is called an ionizing magneto-hydrodynamic (MHD) shock wave. Such waves occur frequently in laboratory plasma physics experiments and may occur, in some cases, during atmospheric re-entry of a missile or by: 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. Experimental investigation of shock waves in a partially ionized discharge plasma Yu.

Chutov 1 Journal of Applied Mechanics and Technical Physics volume 11. Investigation of the adiabatic behavior of ionizing shock waves in an oblique magnetic field. “Magnetohydrodynamic shock waves ionizing a gas,” Dokl. Akad. Nauk SSSR,“Normal ionizing shock waves with equilibrium chemistry in hydrogen,” Phys.

Fluids, 9, No. 3 (). Typically researchers focused on planar shock systems, whereas, in practice, axisymmetric surfaces and conical shock waves are much more common in hypersonic vehicles, such as the SR designed by Lockheed far, investigations of the conical shock wave/boundary layer interaction (CSBLI) problems are mostly focused in external flows, where a conical shock impinges into a flat surface.

Shock wave techniques offer unique capabilities for the experimental characterization of material properties at very high pressures and strain rates [1]. The usefulness of shock wave experiments can be expanded by inputting an initial compressive wave with a finite rise-time [2, 3] as opposed to the nearly instantaneous shocks of current.

Physics of ionizing shock waves in magnetic fields Article (PDF Available) in Physics Reports 84(1) April with 57 Reads How we measure 'reads'.

The normal ionizing shock wave is considered as a potential preionizer for high density, high bias field theta pinches. Available experimental data is compared with the theory of Kunkel and Gross which was written for plane geometry. Limitations to the validity of the theory due to finite ionization rate, and to radial plasma drift are determined.

Experiments are described in which transverse ionizing shock speeds up to 4×10 8 cm/sec were measured in gaseous hydrogen. Measurements of the magnetic shock structure, shock thickness, and magnetic field jump are described and compared with theoretical predictions.

The ion temperature near the device wall was measured by a charge exchange particle detector. An analysis of the limit case of normal ionizing shock waves is of interest in view of the numerous experimental investigations of such waves [2 and 3], and also due to the presence of a number of singularities in its solution as compared with the general case.

D I., Igra O., Enhancment of shock waves, Shock Waves an International Journal on Shock Waves, Detonations and Explosions, 16, 3, -(). Glam B, Igra O., Britan A, Dynamics of Stress Wave Propagation in a Chain of Photoelastic Discs Impacted by a Planar Shock Wave; Part I, Experimental Investigation, Shock Waves an International Journal on Shock Waves, Detonations.

The formation and evolution of normal ionizing shock waves in an electromagnetic shock tube is examined. The theory is applied to the calculation of plasma parameters for normal ionizing shock.

The stability of a plane shock wave, which is ionizing a gas, against small two-dimensional perturbations in the presence of a uniform electromagnetic field is analyzed. The applied electric field is assumed to be normal to the wave front while the magnetic field is parallel to the front and perpendicular to the plane in which the perturbations are propagating.

This paper presents the theory of ionizing shock waves in a magnetic field. Depending on the shock type (which is determined by the relation between the gas outflow velocity, at the shock front, and local values of the characteristic fast and slow magnetosonic speeds and Alfvén speed), the evolutionarity conditions of a shock wave either imply additional boundary conditions, apart from those.

Across the normal shock wave the Mach number decreases to a value specified as M1: M1^2 = [(gam - 1) * M^2 + 2] / [2 * gam * M^2 - (gam - 1)] where gam is the ratio of specific heats and M. is the upstream Mach number. The total temperature Tt across the shock is constant. Analytical and experimental research on non-stationary shock waves, rarefaction waves and contact surfaces has been conducted continuously at UTIAS since its inception in Some unique facilities were used to study the properties of planar, cylindrical and spherical shock waves and their interactions.

Investigations were also performed on shock-wave structure and boundary layers in. The steady‐state jump equations for normal ionizing shock waves in hydrogen are solved numerically assuming the upstream and downstream states are at chemical equilibrium.

Accurate thermodynamic functions are used to include changes due to dissociation and ionization of the gas. The results show that the solutions with chemistry are qualitatively like the ideal gas normal ionizing shock wave. Experimental and Theoretical Investigations of Normal Shock Wave/Turbulent Boundary-Layer Interactions at Low Mach Numbers in a Square Straight Duct Yoshiaki Miyazato, Kazuyasu Matsuo and.J.

Plasma Physics (), vol. 26, part 1, pp. 29 Printed in Great Britain The theory of ionizing shock waves in a magnetic field.

Part 1. Skew and oblique shock waves, boundary.