Document


Title

Forced plumes
Document Type: Journal Article
Author(s): B. R. Morton
Publication Year: 1959

Cataloging Information

Keyword(s):
  • flame length
  • physics
  • smoke management
  • weather observations
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 38866
Tall Timbers Record Number: 13485
TTRS Location Status: In-file
TTRS Call Number: Fire File DDW
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

From the text ... 'This paper describes an investigation of the turbulent forced plumes generated by steady release of mass, momentum and buoyancy from a source situated in an extensive region of uniform or stably stratified fluid. The treatment, which is an extension of earlier work on buoyant plumes, also brings out the relationship between the jet and the plume as special cases of forced plumes. The analysis shows that the behaviour of a forced plume from a source of finite size which delivers buoyancy, mass and momentum can in a uniform environment be related to that from a virtual point source of buoyancy and momentum only, and a treatment is given for the latter type of forced plume. When the environment is weakly stratified it is inferred that forced plumes can be related to point sources in the same way. In a uniform environment the plume fluid rises indefinitely; but when the environment is stably stratified, increasing the release of mass and momentum from a given source of buoyancy has the effect at first of reducing the total height of the plume, and only for very large flux of momentum does the height increase again, without limit. A description is given for the behaviour of vertical jets in a stably stratified environment, and for forced plumes of fluid with negative buoyancy.'

Citation:
Morton, B. R. 1959. Forced plumes. Journal of Fluid Mechanics, v. 5 Part I, no. 1, p. 150-163.