Thesis (Mech.Eng. 1969) from the Dept. of Mech. Eng., University of Adelaide.

Thesis (M.S.)--University of Michigan, 1982.

Thesis (Ph. D.)--University of Chicago, Department of Psychology. / A Dissertation, submitted to the Faculty of the Graduate School of Arts and Literature, in candidacy for the Degree of Doctor of Philosophy, Department of Psychology. Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1965. / Typescript. Vita. Description based on print version record. Includes bibliographical references (leaves 195-196).

Thesis (M.S.)--University of Wisconsin--Madison. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (Ph. D.)--University of Texas at Austin, 2005. / Vita. Includes bibliographical references.

The operation of a diaphragm shock tube of 5 cm inside diameter in which the driver gas is heated by the discharge of electrical energy ( ~ 10³ joules) is analyzed in detail. A technique is described for the measurement of the heated driver gas pressure and empirical relations are obtained which enable the shock speed to be calculated from a knowledge of the discharge voltage and test gas pressure. Using helium driver gas initially at atmospheric pressure, shock Mach numbers of about 20 are obtained in argon at an initial pressure of about 1 Torr. The separation of shock front and contact surface is analyzed by means of a convenient shock reflection technique using a smear camera. The properties of the shock-heated gas are shown to agree with the predictions of standard shock wave theory, which yields a temperature of about 1.3•10⁴°K and an electron density of about I0¹⁷ cm⁻³ for the case of a Mach 20 shock in argon at 0.5 Torr. In this case the shock-heated gas sample is observed to be about 5 cm in length at a position 1.2 meters from the diaphragm. / Science, Faculty of / Physics and Astronomy, Department of / Graduate

The stability of converging waves was analysed with theory and by experiment. A computer code was written in FORTRAN language for the calculation of wavefront positions of plane shock waves and cylindrical converging shock waves in ideal gas. The criteria for stability were defined and the limit of stability of imploding shock waves was obtained using the code. In order to test the model, an experiment was set up to generate shock waves in an electrothermal shock tube. These shock waves were made to propagate into a wedged channel, and the variations of the shapes of the waves front were measured from high speed framing camera pictures. Good agreement was found between the experimentally observed velocity and the model calculation, indicating that the computer procedure is a valid method to analyse the stability of converging waves. / Science, Faculty of / Physics and Astronomy, Department of / Graduate

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