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Wind-tunnel research on the mechanics of plumes in the atmospheric surface layer. Part II. Wind-tunnel simulation of diffusion in an atmospheric surface layer with an elevated inversion: annual report

Date

1985-05

Authors

Poreh, Michael, author
Cermak, Jack E., author
Fluid Mechanics and Wind Engineering Program, Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisher

Journal Title

Journal ISSN

Volume Title

Abstract

Diffusion of neutrally buoyant plumes emitted at various heights within a convective boundary layer capped by an inversion was simulated in a meteorological wind tunnel. Measurements were made of mean and fluctuating velocities and temperatures and of the diffusing plumes. When presented in a dimensionless coordinate system based on the buoyant heat flux and the thickness of the convective layer, the data appear to be consistent with available data from field studies and water-tank simulations and exhibit a unique pattern of diffusion which is related to the nature of the thermals and the downdrafts within the convective boundary layer.

Description

CER84-85MP-JEC47.
Includes bibliographical references (pages 39-40).
May 1985.
Project No. 5-32512.
Prepared for Department of the Army, U.S. Army Armament Research and Development Command, Chemical Systems Laboratory, Aberdeen Proving Ground.

Rights Access

Subject

Wind tunnel models
Atmospheric diffusion
Boundary layer (Meteorology) -- Observations

Citation

Associated Publications