Document


Title

An approximate model of atmospheric plumes produced by large area fires
Document Type: Journal Article
Author(s): D. Weihs; R. D. Small
Publication Year: 1993

Cataloging Information

Keyword(s):
  • air quality
  • decay
  • dust
  • humidity
  • nuclear winter
  • smoke behavior
  • statistical analysis
  • temperature
  • wind
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 36654
Tall Timbers Record Number: 11053
TTRS Location Status: In-file
TTRS Call Number: Fire File
TTRS Abstract Status: Okay, Fair use, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.

Description

We develop a simple analytical model to estimate the thickness of a smoke layer formed by a plume of a large area fire and to account for crosswinds. We take advantage of the dominant flow features in the upper part of the rising plume and in the smoke layer far from the plume to model the transition of a vertical flow to a horizontally spread thin smoke (or dust) layer. A one-dimensional approximation is used to model the buoyancy decay and plume overshoot. That solution is matched and combined with a solution based on the work required to establish our asymptotic horizontal smoke layer. The solution estimates the thickness of the spreading smoke layer. The solution estimates the thickness of the spreading smoke layer in a quiescent atmosphere or in an ambient wind field.

Citation:
Weihs, D., and R. D. Small. 1993. An approximate model of atmospheric plumes produced by large area fires. Atmospheric Environment, v. 27A, no. 1, p. 73-82.