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Author: kevin mcgrattan

Displaying records 11 to 20 of 118 records.
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11. CFD Modeling of Fire
Published: 1/11/2012
Authors: Kevin B McGrattan, Randall Joseph McDermott, Glenn P Forney, Jason E Floyd, Simo A Hostikka, Howard Richard Baum
Abstract: 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 scenario ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909443

12. Smoke Plume Trajectory from In Situ Burning of Crude Oil in Alaska ‹ Updated Simulation Results
Series: Technical Note (NIST TN)
Report Number: 1706
Published: 7/21/2011
Authors: William D. Walton, Kevin B McGrattan
Abstract: The purpose of this report is to update calculations, originally performed in 1993, that predict the downwind extent of smoke particulate from hypothetical in situ burns of spilled crude oil in Alaska. The reason for the update is that the Natio ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908811

13. Understanding the Fire Hazards of Grouped Electrical Cables
Published: 6/26/2011
Authors: Kevin B McGrattan, David Stroup
Abstract: 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 progr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908211

14. A Simple Reaction Time Scale for Under-Resolved Fire Dynamics
Published: 6/20/2011
Authors: Randall Joseph McDermott, Kevin B McGrattan, Jason E Floyd
Abstract: 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 coa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907227

15. Quantifying Model Error
Published: 2/11/2011
Authors: Kevin B McGrattan, Blaza Toman
Abstract: 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 experimen ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904174

16. Evaluation of a Two-Dimensional Simulation of Low Strain Rate Nonpremixed Counterflow Flames
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6839
Published: 1/5/2011
Authors: W Park, Anthony P Hamins, Kevin B McGrattan
Abstract: A mixture fraction formulation is used to numerically simulate the two-dimensional structure of diluted axisymmetric methane-air nonpremixed counterflow flames. The size of the computational domain and the grid spacing are selected based on negligibl ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861106

17. Understanding the Hazards of Grouped Electrical Cables
Published: 8/8/2010
Authors: Kevin B McGrattan, Andrew J. Lock, Nathan D Marsh, Marc R Nyden, Jason Dreisbach, David Stroup
Abstract: 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 quantita ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904855

18. MODELING THE BURNING OF COMPLICATED OBJECTS USING LAGRANGIAN PARTICLES
Published: 7/4/2010
Authors: Kevin B McGrattan, Randall Joseph McDermott, William E. Mell, Glenn P Forney, Jason E Floyd, Simo A Hostikka
Abstract: 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 governi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905798

19. Fire Dynamics Simulator Version 6: Complex Geometry, Embedded Meshes, and Quality Assessment
Published: 6/17/2010
Authors: Randall Joseph McDermott, Glenn P Forney, Kevin B McGrattan, William E. Mell
Abstract: The Fire Dynamics Simulator (FDS) and Smokeview (SMV) are computational and visualization tools specifically designed for large-eddy simulations (LES) of low-speed, thermally driven flows \cite{fds-smv}. FDS Version 6 will offer improvements in the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905812

20. Understanding the Hazards of Grouped Electrical Cables
Published: 6/7/2010
Authors: Kevin B McGrattan, Andrew J. Lock, Marc R Nyden, Jason Dreisbach, Nathan D Marsh, David Stroup
Abstract: 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 quantita ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905797



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