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Displaying 1 - 25 of 68

A Simple Model of Fireball Dynamics

February 19, 2017
Author(s)
Howard R. Baum, Ronald G. Rehm
An analytical model of the initial expansion of a fireball is presented.The model is based on an exact solution of the low Mach number combustion equations in the form initially proposed by the authors. The equations consist of the conservation of mass

A Simple Model of the WTC Fireball Dynamics

February 19, 2017
Author(s)
Howard R. Baum, Ronald G. Rehm
An analytical model of the initial expansion of a fireball is presented.The model is based on an exact solution of the low Mach number combustion equations in the form initially proposed by the authors. The equations consist of the conservation of mass

Fire Structure Interface for the World Trade Center Towers

February 19, 2017
Author(s)
Kuldeep Prasad, Howard R. Baum
The collapse of the World Trade Center towers on September 11, 2001, resulting from a combination of aircraft impact damage and subsequent fires, was studied as part of the Federal Building and Fire Safety Investigation of the World Trade Center Disaster

Localized Ignition and Subsequent Flame Spread Over Solid Fuels in Microgravity

February 19, 2017
Author(s)
Takashi Kashiwagi, Y N. Nakamura, Kuldeep Prasad, Howard R. Baum, S L. Olson, O -. Fujita, K K. Nishizawa, K. Ito
Ignition and subsequent flame spread over a paper sample and a PMMA sheet in microgravity are studied experimentally and theoretically. New results obtained during last two years are described.

Simulating Enclosure Fire Dynamics

February 19, 2017
Author(s)
Howard R. Baum
At least three different physics based approaches to fire dynamics simulations have evolved over the years; lumped parameter or ''zone models'', computational fluid dynamics models based on classical trubulence modeling techniques, and large eddy

Simulating Enclosure Fire Dynamics and Suppression

February 19, 2017
Author(s)
Howard R. Baum, Kevin B. McGrattan
At least three different physics based approaches to fire dynamicssimulations have evolved over the years; lumped parameter or ''zone models'',computational fluid dynamics models based on classical turbulence modelingtechniques, and large eddy simulations

Simulating Fire Dynamics and Thermal Response of Structural Elements

February 19, 2017
Author(s)
Kuldeep Prasad, Howard R. Baum
Simulation of the effects of severe fires on the structural integrity of builings requires a close coupling between the gas phase energy release andtransport phenomena and the stress analysis in the load bearing materials. The connection between the two is

CFD Modeling of Fire

January 11, 2012
Author(s)
Kevin B. McGrattan, Randall J. McDermott, Glenn P. Forney, Jason E. Floyd, Simo A. Hostikka, Howard R. Baum
An overview of a methodology for simulating fires and other thermally-driven, low-speed flows is presented. The model employs a number of simplifications of the governing equations that allow for relatively fast simulations of practical fire scenarios. The

Simulating Fire Effects on Complex Building Structures.

December 1, 2005
Author(s)
Howard R. Baum
The purpose of this lecture is to assess the current state of our ability to simulate the consequences of a fire in a large building, and suggest some areas where improvement is needed. Attention is focused on the coupling of fire dynamics simulations and

DNA Identifications After the 9/11 World Trade Center Attack

November 18, 2005
Author(s)
Leslie G. Biesecker, Joan E. Bailey-Wilson, Jack Ballantyne, Howard R. Baum, Frederick R. Bieber, Charles Brenner, Bruce Budowle, John Butler, George Carmody, P. M. Conneally, Barry Duceman, Arthur Eisenberg, Lisa Forman, Kenneth K. Kidd, Beno? Leclair, Steven Niezgoda, Thomas J. Parsons, Elizabeth Pugh, Robert Shaler, Stephen T. Sherry, Amanda Sozer, Anne Walsh

Simulating Fire Effects on Complex Building Structures.

September 18, 2005
Author(s)
Howard R. Baum
The purpose of this lecture is to assess the current state of our ability to simulate the consequences of a fire in a large building, and suggest some areas where improvement is needed. Attention is focused on the coupling of fire dynamics simulations and

Fire Structure Interface and Thermal Response of the World Trade Center Towers. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5G) ***DRAFT for Public Comments***

September 1, 2005
Author(s)
Kuldeep R. Prasad, Howard R. Baum
The collapse of the World Trade Center towers on September 11, 2001, resulting from a combination of aircraft impact damage and subsequent fires, was studied as part of the Federal Building and Fire Safety Investigation of the WTC Disaster. This report

Coupled Fire Dynamics and Thermal Response ofComplex Building Structures

July 30, 2005
Author(s)
Kuldeep R. Prasad, Howard R. Baum
Simulation of the effects of severe fires on the structural integrity ofbuildings requires a close coupling between the gas phase energy release andtransport phenomena and the stress analysis in the load bearing materials.The connection between the two is

Improved Radiation and Combustion Routines for a Large Eddy Simulation Fire Model

June 16, 2005
Author(s)
Kevin B. McGrattan, J E. Floyd, Glenn P. Forney, Howard R. Baum, Simo A. Hostikka
Improvements have been made to the combustion and radiation routines of a large eddy simulation fire model maintained by the National Institute of Standards and Technology. The combustion is based on a single transport equation for the mixture fraction
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