Accession Number:

AD0757867

Title:

Deceleration and Vertical Motion of a Gas Puff Released into the Upper Atmosphere.

Descriptive Note:

Environmental research papers,

Corporate Author:

AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s):

Report Date:

1973-01-12

Pagination or Media Count:

17.0

Abstract:

A study has been made of the slowing down of a gas puff released into the upper atmosphere at 100 km and its subsequent vertical motion, by use of a snow plow model. It was found that the center of mass velocity and the expansion velocity decrease to 1 percent of their initial values in about 3 seconds, at which time an ambient mass about 90 times the original mass has interacted with the gas. The temperature rise, although high initially, decreases rapidly to about 3 degrees when the vertical motion starts. For this temperature rise, the calculated values of amplitude and maximum velocity of the vertical motion were well below the observed values. Author

Subject Categories:

  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE