Document


Title

A model to predict maximum tangential wind velocity in laboratory-scale fire whirls without flames in a crosswind
Document Type: Journal Article
Author(s): Masahiko Shinohara
Publication Year: 2024

Cataloging Information

Keyword(s):
  • fire whirls
  • heat release rate
  • laboratory experiments
  • wind velocity
Record Maintained By:
Record Last Modified: February 4, 2024
FRAMES Record Number: 69056

Description

Fire whirls cause strong wind damage in large outdoor fires such as wildland fires and urban fires. A model to predict the maximum tangential wind velocity in laboratory-scale fire whirls without flames in a crosswind is developed based on a generation mechanism and the properties of the fire whirls. The model also predicts the radii of the fire whirls and the crosswind speed when they occur. The fire whirls modeled are those with large circulation and large radii, that is, large intense fire whirls. These fire whirls occur and remain downwind of a fire line placed perpendicular to the crosswind under a low crosswind speed and a high heat release rate (HRR). The model agrees well with the experimental results.

Online Link(s):
Citation:
Shinohara, Masahiko. 2024. A model to predict maximum tangential wind velocity in laboratory-scale fire whirls without flames in a crosswind. Fire Safety Journal 143:104082.