Accession Number : AD0691879

Title :   THE PENETRATION OF TORNADO-LIKE VORTICES INTO THE BOUNDARY LAYER NUMERICAL EXPERIMENTS.

Descriptive Note : Final scientific rept. 1 Feb 66-31 May 69,

Corporate Author : TECHNISCHE HOCHSCHULE DARMSTADT (WEST GERMANY) INSTITUT FUER METEOROLOGIE

Personal Author(s) : Szillinsky,A. ; Wippermann,F.

Report Date : 30 JUN 1969

Pagination or Media Count : 106

Abstract : A tornado-like vortex, which intensifies with time, is imposed on the upper boundary of the boundary layer. The downward development of this axisymmetric vortex is studied by numerical integration of the flow equations. The contour of the visible tornado funnel has been computed for various times. The streamlines, the fields of pressure deviation, and of the tangential velocity are presented for a time close to the steady state. The influence of a varying eddy diffusion coefficient is investigated. (Author)

Descriptors :   (*ATMOSPHERIC MOTION, VORTICES), (*TORNADOES, MATHEMATICAL MODELS), BOUNDARY LAYER, EQUATIONS OF MOTION, BOUNDARY VALUE PROBLEMS, NUMERICAL ANALYSIS, BAROMETRIC PRESSURE, WIND, WEST GERMANY, NUMERICAL INTEGRATION

Subject Categories : Atmospheric Physics
      Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE