Measurement of expansion velocity of an impact-generated vapor cloud

Details Measurement of expansion velocity of an impact-generated vapor cloud Measurement of expansion velocity of an impact-generated vapor cloud

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20.1595k&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 15, p. 1595-1598.

Physics

5

Basalt, Gas Expansion, Hypervelocity Impact, Plasma Clouds, High Speed Photography, Luminosity, Mathematical Models, Photometry

Scientific paper

The expansion velocity of an impact-generated vapor cloud was determined. In the impact of a 7 mm nylon sphere into a basaltic cube at velocity 3.8 km/s, the front velocity of luminous vapor(plasma) cloud expanding hemispherically was constant at about 4 km/s within at least 5 cm distance from the impact point. A simplified model calculation used to estimate the distribution of mass in the cloud suggests that most of the mass should lie near the front of the expanding cloud.

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