Accession Number : AD0678477

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

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Laikhtman,D. L. ; Byutner,E. K.

Report Date : 29 NOV 1967

Pagination or Media Count : 10

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)

Descriptors :   (*CLEAR AIR TURBULENCE, MOUNTAINS), INTENSITY, WIND, ALTITUDE, ENERGY, AIR MASS ANALYSIS, DIFFUSION, FLOW FIELDS, METEOROLOGICAL PHENOMENA, STATISTICAL ANALYSIS, ATMOSPHERIC MOTION, USSR

Subject Categories : Atmospheric Physics
      Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE