Fire spread in a three-dimensional pressure vessel with radiation exchange and wall heat losses
Authors
Raycraft, Janet K.
Kelleher, Matthew D.
Yang H.Q.
Yang K.T.
Subjects
Advisors
Date of Issue
1988-08
Date
1988-08
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
In the present study, a three-dimensional differential field model based
on general orthogonal coordinate systems is developed. The model, which is
essentially designed for closed spaces, also includes the physical effects of
turbulence, strong buoyancy, full compressibility, pressure rise due to fire
loading, surface-surface and surface-flame radiation exchange, and heat losses
through the wall. It is based on a control -volume staggered-cel i finitedifference
approach with primitive variables. Results of numerical calculations
based on the field model are compared with test data for a methanol fire
in the NRL FIRE I test facility which is in the form of a closed pressure
vessel. Reasonable comparisons of the resulting pressure and temperatures at
several locations have been obtained. Also shown are the detailed velocity
and temperature fields inside the vessel at different time instants after the
commencement of the fire.
Type
Technical Report
Description
Series/Report No
Department
Mechanical Engineering
Organization
Operations Research (OR)
Identifiers
NPS Report Number
NPS-69-88-008
Sponsors
Prepared for: Naval Research Laboratory
Washington, D.C.
Funder
O&MN, Direct Funding
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.