Accession Number:

AD0678477

Title:

BASIC CRITERIA DEFINING THE INTENSITY OF TURBULENCE IN A MOUNTAIN REGION (OSNOVNYE KRITERII, OPREDELYAYUSHCHIE INTENSIVNOST TURBULENTNOSTI V GORNOM RAIONE),

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1967-11-29

Pagination or Media Count:

10.0

Abstract:

An effort is made to compute the characteristics of air currents in mountainous regions. The study avoids the use of an oversimplified terrain model such as one in which a mountain ridge is treated as a single obstacle of one form or another. The authors take the approach that the complex structure of an air stream in a mountainous area may be represented as a certain smoothed motion U upon which are superimposed macroscalar pulsations U. These pulsations are the result of the current breakup upon incidence with the mountain ridge. Hence, the mountains are visualized as a lattice wherein the basic generation of turbulence energy occurs in a layer ranging from a certain mean height to the mountain summits. Above this layer the inflow of energy of turbulence is caused by the diffusion from below. Author

Subject Categories:

  • Atmospheric Physics
  • Meteorology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE