Computational modeling of vapor cloud explosions in off-shore rigs using a flame-speed based combustion model

Clutter, J. Keith; Mathis, James T.

doi:10.1016/s0950-4230(02)00019-0

Cited by 10 publications

(5 citation statements)

References 3 publications

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“…In previous work with CEBAM where only gas phase material was present, a Steger-Warming flux vector splitting scheme, as described in [10,11] was used. Simulations using this scheme in CEBAM have been documented in [1][2][3]. This also has proven accurate for the HE scenarios in air presented here.…”

Section: Numerical Formulationmentioning

confidence: 78%

“…It is titled the Computational Explosion and Blast Assessment Model (CEBAM) and is based on an earlier version developed for vapor cloud explosions (VCEs). The fundamentals of the code as used for VCEs are described in [1], while [2,3] show comparisons of CEBAM predictions with large scale explosion data. Clutter et al [4] reviews use of the code in facility scale accident investigations which include many of the same tasks as found in vulnerability assessments.…”

Section: Computational Modelmentioning

confidence: 99%

“…Also, as evident in the section on shock tube data, CEBAM accurately predicts the interaction of shock, compression, and expansion waves with objects. Detailed comparisons between CEBAM results and test data for gas explosions in complex geometries are represented in [1][2][3].…”

Section: Example Explosion Scenario Calculationsmentioning

confidence: 99%

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Hydrocode simulations of air and water shocks for facility vulnerability assessments

Clutter

2004

Journal of Hazardous Materials

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Section: Numerical Formulationmentioning

confidence: 78%

Section: Computational Modelmentioning

confidence: 99%

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Hydrocode simulations of air and water shocks for facility vulnerability assessments

Clutter

2004

Journal of Hazardous Materials

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“…Here its capabilities in addressing high-explosive events are briefly reviewed. It can also be used for vapor cloud explosion (VCE) scenarios [3].…”

Section: C Cu Ur Rr Re En Nt T C Co Om Mp Pu Ut Ta At Ti Io On Nmentioning

confidence: 99%

Application of Computational Modeling for Explosive Hazard Assessments

Clutter¹

2013

International Journal of Protective Structures

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Computational modeling is routinely used in the design and development of explosive systems but is not typically applied in performing hazard assessments related to explosives. Typically simplified models are used to perform analysis related to safety and security applications involving explosives. These models can misrepresent the destructive output from explosive devices because they do not resolve many of the aspects of the scenarios such as wave reflection, channeling and focusing of blast waves. Here a computational model developed specifically for explosive hazard assessments is reviewed and the advantages as compared to simple models are highlighted. Some of the obstacle to applying computational modeling to routine explosive hazard assessment problems is the ability to perform analysis in a timely manner and address the wide range of explosives encountered. Here techniques being developed to increase flexibility in application and increase efficiency are presented.

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“…Up to now, influencing factors of the overpressure of fuel-air cloud have been widely studied. Some works on the enclosed space have paid attention to the influencing factors of the overpressure production process of gas-liquid twophase, gas-solid two-phase, and gas-liquid-solid three-phase within the vessel in laboratory [2][3][4][5][6][7], such as the location of the detonation initiation point [8,9], energy [10] and ignition way [11], particle size [12] of fuel-air mixtures, and fuel type [13]. Moreover, the related computational model had been established [8,14].…”

Section: Introductionmentioning

confidence: 99%

Influences of the Cloud Shape of Fuel-Air Mixtures on the Overpressure Field

Bai

Wang

et al. 2016

Shock and Vibration

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This paper presents an experiment system in the open field, which comprises a charge structure (approximately 166.2 kg), a high-speed camera subsystem, and a pressure measurement subsystem. Through a series of experiments under the cylindrical clouds with different diameters, heights, and diameter-to-height ratios (D : H), the influences of various cloud shapes on the overpressure field were analyzed and discussed. Based on the experimental results, the overpressure field was divided into two zones: detonation wave zone and shock wave zone. It is found that the overpressure of shock waves at the same distance from the explosion center increased with the diameters, but the variations of heights had little impact on the overpressure. Therefore, the pancake-shaped cloud of fuel-air mixtures is the optimal shape for obtaining the wider overpressure field. Moreover, it is found that the overpressure field gets the maximum under the diameter-to-height ratios of 5.7 in the same distance within the studied range.

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Computational modeling of vapor cloud explosions in off-shore rigs using a flame-speed based combustion model

Cited by 10 publications

References 3 publications

Hydrocode simulations of air and water shocks for facility vulnerability assessments

Hydrocode simulations of air and water shocks for facility vulnerability assessments

Application of Computational Modeling for Explosive Hazard Assessments

Influences of the Cloud Shape of Fuel-Air Mixtures on the Overpressure Field

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