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Displaying 51 - 68 of 68

Heat Transfer in an Intumescent Material Using a Three-Dimensional Lagrangian Model

September 10, 1995
Author(s)
Kathryn M. Butler, Howard R. Baum, Takashi Kashiwagi
The addition of heat transfer calculations to a three-dimensional, time-dependent numerical model of intumescent materials is described. Intumescent materials protect an underlying substrate from fire through endothermic chemical reactions producing

Ignition and Subsequent Flame Spread Over a Thin Cellulosic Material.

December 1, 1992
Author(s)
Kazuyoshi K. Nakabe, Howard R. Baum, Takashi Kashiwagi
Both ignition and ffame spread on solid fuels are processes that not only are of considerable scientific interest but that also have important fire safety applications. Both types of processes, ignition and flame spread, are complicated by strong coupling

Boussinesq Algorithm for Buoyant Convection in Polygonal Domains.

April 1, 1992
Author(s)
Kevin B. McGrattan, Ronald G. Rehm, Hai C. Tang, Howard R. Baum
A 2-D Boussinesq model describing heat-driven buoyant convection in a polygonal enclosure is presented. The hydrodynamics is based on the time-dependent Navier-Stokes equations with constant viscosity and thermal conductivity; no turbulence model or other

Boussinesq Algorithm for Enclosed Buoyant Convection in Two Dimensions.

March 1, 1991
Author(s)
Ronald G. Rehm, Hai C. Tang, Howard R. Baum, James S. Sims, Daniel M. Corley
Approximate equations for a Boussinesq model with viscous dissipation and thermal conduction describing buoyant convection driven by a heat source in rectangular enclosure are derived. The finite-difference algorithm for computing transient solutions in

Combustion of Oil on Water.

November 1, 1987
Author(s)
Howard R. Baum, George W. Mulholland, D D. Evans, B J. McCaffrey, M F. Harkleroad, W F. Manders
This report contains the results of measurements performed on both 0.4 m and 0.6 m diameter pool fires produced by burning a layer of Prudhoe Bay crude oil supported by a thermally deep layer of water. Both steady and vigorous burning caused by boiling of

Coagulation of Smoke Aerosol in a Buoyant Plume.

February 5, 1979
Author(s)
Howard R. Baum, George W. Mulholland
The mechanism of particulate coagulation in a turbulent plume is studied by combining the Morton-Taylor-Turner theory of turbulent byouant plums with the present authors' earlier analysis of coagulation in a homogeneous system. The conservation of fluid

Coagulation of Aerosols With Broad Initial Size Distributions.

October 19, 1976
Author(s)
George W. Mulholland, Howard R. Baum, T G. Lee
The effect of coagulation on an aerosol with a broad initial size distribution was calculated analytically for large and small particle sizes for arbitrary time with the assumption of a constant coagulation collision frequency. It was found for the class
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