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Search Publications by: Kevin B. McGrattan (Fed)

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Displaying 26 - 50 of 302

Measurement of the Flow Resistance of Vegetation

April 1, 2019
Author(s)
Ryan L. Falkenstein-Smith, Kevin B. McGrattan, Blaza Toman, Marco G. Fernandez
This report documents the measurement of the wind resistance of different types of vegetation. The measurements are made in a wind tunnel with a 2.0 m test section and 0.5 m by 0.5 m cross- section. Samples of vegetation have been cut into cubical volumes

The Influence of Walls, Corners and Enclosures on Fire Plumes

March 19, 2018
Author(s)
Kevin B. McGrattan, Michael J. Selepak, Edward J. Hnetkovsky
This report documents two series of compartment fire experiments in which a natural gas burner is positioned in a corner, or against a wall, or inside a steel cabinet, to assess the effects on the plume and compartment temperatures. The measurements

The Long-Term Maintenance of CFAST

September 20, 2017
Author(s)
Kevin B. McGrattan, Richard D. Peacock, Glenn P. Forney
Even though zone fire models may seem like yesterday’s news, they still play a vital role in many aspects of fire protection engineering. How do we maintain this technology as it moves from a topic of research to a case study in knowledge management?

Progress in Modeling Wildland Fires using Computational Fluid Dynamics

June 12, 2017
Author(s)
Kevin B. McGrattan
This paper presents a sensitivity study for computational fluid dynamics (CFD) simulations of grassland fires. The simulations are compared with the results of experiments conducted in northern Australia in 1986. The report of these experiments notes that

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

Heat Release Rates of Electrical Enclosure Fires (HELEN-FIRE)

April 8, 2016
Author(s)
Kevin B. McGrattan, Scott D. Bareham
This report documents an experimental program to quantify the heat release rate and burning behavior of electrical enclosures commonly found in nuclear power plants. Electrical enclosures are a potential source of fire in nuclear power plants because they

Enforcing realizability in explicit multi-component species transport

October 5, 2015
Author(s)
Randall J. McDermott, Kevin B. McGrattan, Jason Floyd
A strategy is proposed to guarantee realizability of species mass fractions in explicit time integration of the partial differential equations governing fire dynamics, which is multi-component transport problem. For a mixture of $n$ species, the

Spent Fuel Transportation Package Response to the MacArthur Maze Fire Scenario

October 2, 2015
Author(s)
Kevin B. McGrattan, Harold Adkins
The NRC has established requirements that are the design bases for packaging and transportation of spent nuclear fuel assemblies under normal conditions of transport (NCT) and for hypothetical accident conditions (HAC). Real-world accidents of greater

Validation of Fire Models Applied to Nuclear Power Plant Safety

September 1, 2015
Author(s)
Kevin B. McGrattan, Richard D. Peacock, Kristopher J. Overholt
The paper highlights key components of a fire model validation study conducted by the U.S. Nuclear Regulatory Commission and the Electric Power Research Institute. These include the selection of fire phenomena of interest to nuclear power plant safety, the

Fire Modeling for the Fire Research, Fire Protection, and Fire Service Communities

September 8, 2014
Author(s)
Kevin B. McGrattan, Randall J. McDermott, Glenn P. Forney, Kristopher J. Overholt, Craig G. Weinschenk, Jason E. Floyd
The Fire Dynamics Simulator (FDS) was first publicly released in 2000, and it has recently undergone its fifth major revision. Since its first release, FDS has been applied in three major areas: basic research in fire dynamics, performance-based design