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Measurement of expansion velocity of an impact‐generated vapor cloud
Author(s) -
Kadono Toshihiko,
Fujiwara Akira,
Nakamura Akiko M.
Publication year - 1993
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/93gl01255
Subject(s) - cloud computing , cube (algebra) , water vapor , front (military) , mechanics , point source , environmental science , physics , meteorology , geometry , optics , mathematics , computer science , operating system
The expansion velocity of an impact‐generated vapor cloud was determined. In the impact of a 7mm nylon sphere into a basaltic cube at velocity 3.8km/s, the front velocity of a luminous vapor(plasma) cloud expanding hemispherically was constant at about 4km/s within at least 5cm 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.