Document

Title

Turbulence and the visualization of wind flow
Document Type: Journal Article
Author(s): A. N. Moen
Publication Year: 1974

Cataloging Information

Keyword(s):
  • convection
  • distribution
  • ecosystem dynamics
  • heat
  • moisture
  • plant communities
  • wind
Topic(s):
Region(s):
Record Maintained By:
TTRS Staff; https://talltimbers.org/contact-us
Record Last Modified: June 1, 2018
FRAMES Record Number: 38956
Tall Timbers Record Number: 13579
TTRS Location Status: In-file
TTRS Call Number: Journals - E 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

Air flow in the natural environment affects the distribution of organisms, mechnical stresses, heat losses by convection, and moisture distribution. Air flow was visualized by bubble tracers in a wind tunnel, and the flow patterns over solid barriers 5 and 15 cm high and 0%, 25%, and 47% porosity barriers, each 10 cm high, were photographed. The leeward circulation pattern is very similar regardless of the barrier height. The leeward effect of the barrier extends a greater distance for the 47% porosity than for the 25% and 0% porosities. The three-dimensional characteristics of visualized turbulent flow clearly indicate the limitations of cup anemometers for measuring field velocities since these instruments do not respond to angles of attack from 70s to 90s. © Ecological Society of America. Abstract reproduced by permission.

Citation:
Moen, A. N. 1974. Turbulence and the visualization of wind flow. Ecology, v. 55, p. 1420-1424.