Late Dust Pedestal Rise Mechanisms

Abstract

The mechanism of buoyant rise is found to be quantitatively consistent with readily available photographic data on the late dust pedestal of events Wasp Prime and Climax. The term 'late' refers to times after the rapid initial pedestal rise, and can be conveniently defined in terms of Liner's model. One implication of buoyancy as a driving force for late pedestal rise is that the average bulk density in most or all of the dust pedestal is small compared to air density, that is, small compared to 10-3 g/cm3. A number of mechanisms other than buoyancy were investigated as causes for the late rise with discouraging results; These mechanisms are listed along with a brief description of the reasons each is untenable.

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Document Details

Document Type
Technical Report
Publication Date
Aug 31, 1981
Accession Number
ADA113112

Entities

People

  • D. H. Sowle
  • R. H. Christian

Tags

Communities of Interest

  • Counter IED
  • Counter WMD
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Army
  • Atmospheric Sciences
  • Buoyancy
  • Computer Science
  • Department Of Defense
  • Engineering
  • Equations
  • Flow Fields
  • Ground Zero
  • Materials
  • Measurement
  • Percolation
  • Security
  • Systems Engineering
  • Thermal Radiation
  • Trajectories

Readers

  • Materials Science and Engineering.
  • Mathematics or Statistics
  • Theoretical Analysis.