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Search Publications by: Kevin B. McGrattan (Fed)

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Displaying 26 - 50 of 150

Fire Model Validation – Eight Lessons Learned

March 6, 2014
Author(s)
Kevin B. McGrattan, Richard D. Peacock, Kristopher J. Overholt
This paper provides a summary of a decade-long effort to verify and validate a variety of different fire models used in the commercial nuclear industry. The lessons learned apply to any industry in which fire models are used in a regulatory context. The

Fire Dynamics Simulator Users Guide, Sixth Edition

November 4, 2013
Author(s)
Kevin B. McGrattan, Randall J. McDermott, Craig G. Weinschenk, Glenn P. Forney
This Guide describes how to use the Fire Dynamics Simulator (FDS), a software package used to simulate the impact of fire on buildings.

Fire Dynamics Simulator, Technical Reference Guide, Sixth Edition

November 4, 2013
Author(s)
Kevin B. McGrattan, Randall J. McDermott, Craig G. Weinschenk, Glenn P. Forney
This document provides the theoretical basis for the Fire Dynamics Simulator (FDS), following the general framework set forth in the “Standard Guide for Evaluating the Predictive Capability of Deterministic Fire Models,” ASTM E 1355. It is a four volume

Applications of Heat Transfer Fundamentals to Fire Modeling

June 25, 2013
Author(s)
Ofodike A. Ezekoye, M J. Hurley, Jose L. Torero, Kevin B. McGrattan
The fire industry relies on fire engineers and scientists to develop materials and technologies used to either resist, detect, or suppress fire. While combustion processes are the drivers for what might be considered to be fire phenomena, it is heat

Reconstruction of the Thermal Environment in the Tall World Trade Center Buildings

January 11, 2013
Author(s)
Richard G. Gann, Anthony P. Hamins, Kevin B. McGrattan, Thomas J. Ohlemiller, Kuldeep R. Prasad, William M. Pitts, Harold E. Nelson
The National Institute of Standards and Technology (NIST) conducted an extensive investigation of the collapse of the three tall World Trade Center (WTC) buildings. This paper describes the reconstruction of the fires, the thermal environment they created

Verification and Validation Process of a Fire Model

June 18, 2012
Author(s)
Kevin B. McGrattan, Simo A. Hostikka
Fire simulation tools are used frequently in the fire safety assessment of nuclear and other industrial installations. They are also used in the context of probabilistic fire risk assessment as deterministic models providing the relation between the random

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

Understanding the Fire Hazards of Grouped Electrical Cables

June 26, 2011
Author(s)
Kevin B. McGrattan, David Stroup
CHRISTIFIRE (Cable Heat Release, Ignition, and Spread in Tray Installations during FIRE) is an Office of Nuclear Regulatory Research (RES, US NRC) program to quantify the mass and energy released from burning electrical cables. The experimental program has

A Simple Reaction Time Scale for Under-Resolved Fire Dynamics

June 20, 2011
Author(s)
Randall J. McDermott, Kevin B. McGrattan, Jason E. Floyd
A reaction time scale model is developed for use in the eddy dissipation concept (fast chemistry limit) closure of the mean chemical source term in large-eddy simulation of fires. The novel aspect of the model is to consider a scaling regime for coarse

Quantifying Model Error

February 11, 2011
Author(s)
Kevin B. McGrattan, Blaza Toman
A methodology is proposed for reporting the results of fire model validation studies that consist mainly of comparisons of model predictions and experimental measurements. The difference between the two is a combination of model error and experimental

Understanding the Hazards of Grouped Electrical Cables

August 8, 2010
Author(s)
Kevin B. McGrattan, Andrew J. Lock, Nathan D. Marsh, Marc R. Nyden, Jason Dreisbach, David Stroup
CHRISTIFIRE (Cable Heat Release, Ignition, and Spread in Tray Installations during FIRE) is a U.S. Nuclear Regulatory Commission Office of Research program to quantify the mass and energy released from burning electrical cables. This type of quantitative

MODELING THE BURNING OF COMPLICATED OBJECTS USING LAGRANGIAN PARTICLES

July 4, 2010
Author(s)
Kevin B. McGrattan, Randall J. McDermott, William E. Mell, Glenn P. Forney, Jason E. Floyd, Simo A. Hostikka
A methodology is described for representing complicated objects within a computational fluid dynamics model. These objects are typically collections of similar items that are too small to define on the numerical grid that is used to solve the governing

Understanding the Hazards of Grouped Electrical Cables

June 7, 2010
Author(s)
Kevin B. McGrattan, Andrew J. Lock, Marc R. Nyden, Jason Dreisbach, Nathan D. Marsh, David Stroup
CHRISTIFIRE (Cable Heat Release, Ignition, and Spread in Tray Installations during FIRE) is a U.S. Nuclear Regulatory Commission Office of Research program to quantify the mass and energy released from burning electrical cables. This type of quantitative

Extending the Mixture Fraction Concept to Address Under-Ventilated Fires

April 6, 2009
Author(s)
Kevin B. McGrattan, Jason E. Floyd
A common technique in computational fluid dynamics (CFD) modeling of fire is to assume single step, infinitely fast combustion, in which case the transport equations of all gas species can be combined into one for a single conserved scalar called the

Structural Fire Response and Probable Collapse Sequence of World Trade Center Building 7 (Volume 1). Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-9) ***DRAFT for Public Comments***

August 1, 2008
Author(s)
Therese P. McAllister, Richard G. Gann, Jason D. Averill, John L. Gross, William L. Grosshandler, James R. Lawson, Kevin B. McGrattan, William M. Pitts, Kuldeep R. Prasad, Fahim Sadek, Harold E. Nelson
This is the primary technical report on the National Institute of Standards and Technology (NIST) investigation of the collapse of World Trade Center Building 7 (WTC 7), conducted under the National Construction Safety Team Act. The investigation

Structural Fire Response and Probable Collapse Sequence of World Trade Center Building 7 (Volume 2). Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-9) ***DRAFT for Public Comments***

August 1, 2008
Author(s)
Therese P. McAllister, Richard G. Gann, Jason D. Averill, John L. Gross, William L. Grosshandler, James R. Lawson, Kevin B. McGrattan, William M. Pitts, Kuldeep R. Prasad, Fahim Sadek, Harold E. Nelson
This is the primary technical report on the National Institute of Standards and Technology (NIST) investigation of the collapse of World Trade Center Building 7 (WTC 7), conducted under the National Construction Safety Team Act. The investigation