Simulation of the mushroom cloud generated from a high-energy explosion using large-eddy simulation

Won, Sungjin; Lee, Chang‐Hoon

doi:10.1007/s12206-020-0520-x

Cited by 6 publications

(2 citation statements)

References 13 publications

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“…In recent numerical efforts, Won and Lee (2020) have performed large eddy simulations (LES) and Arthur et al (2021) have studied the viability of using the Weather Research and Forecasting model to predict nuclear cloud rise. Also, Moresco (2022) has developed a formulation of the nuclear cloud that is intermediate in computational cost and based on a vortex ring formulation and a full solution of the equations of motion.…”

Section: List Of Figuresmentioning

confidence: 99%

Design and Testing of the Vortex Ring Facility

Nguyen¹,

Goth²,

Moresco³

et al. 2023

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This document summarizes the efforts of building an experimental test facility to study the evolution of the cloud following a nuclear detonation above ground level and support the development of numerical models to describe it. The experimental facility allows nonintrusive flow visualization and measurements of buoyant vortex ring formation and evolution using background-oriented Schlieren and particle image velocimetry techniques.In addition, 3D unsteady computational fluid dynamics simulations using unsteady Reynolds-averaged Navier-Stokes and volume-of-fluid numerical methods were performed to support the experimental design as well as to provide insight about the formation and evolution of the vortex ring.

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Section: List Of Figuresmentioning

confidence: 99%

Design and Testing of the Vortex Ring Facility

Nguyen¹,

Goth²,

Moresco³

et al. 2023

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“…Experimental studies need to resort to expensive material and test field. Recently more and more analyses of high explosion are based on numerical simulations with great advantage of physical phenomena related to the explosions which can be scaled [1][2][3][4] , and numerical simulation calculations was always used on the diffusion of explosive clouds in the atmosphere, and the generation and vortex motion of "mushroom shaped" lifting clouds [5] . Kinds of cloud diffusion from different explosive materials were also simulated with numerical methods [6] [7] ; for example, third-order Runge Kutta method and WENO scheme were used to analyzing and presenting the evolution process of explosive clouds under the action of nuclear explosion shock waves.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of the impact of ground reflected shock waves on the high explosive cloud

Gao,

Wang,

et al. 2024

Fourth International Conference on Machine Learning and Computer Application (ICMLCA 2023)

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The lifting parameters of high explosive cloud are important data source item for calculating explosive cloud diffusion and serve as the start for subsequent cloud diffusion calculations. Furthermore, lifting cloud of air explosion and nearsurface explosion is significantly different due to the impact of ground reflected shock waves. In this paper, numerical simulation is applied to calculate the floating cloud which is from high explosive explosion. Two numerical examples are presented with comparisons from the lifting cloud of air explosion and the explosion under the effect of ground reflected shock wave. The simulating results show that the ground reflected shock wave makes significant difference to explosive cloud, and accelerates the turbulent motion which make more serious exchange between floating cloud and surrounding medium. Major physics of the cloud lifting from high explosion can be well captured in the simulation, and lift parameters of high explosive cloud can give good prediction for calculating cloud diffusion and settlement.

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Nuclear resilient and redundant compute and communication integrated network

Periola

2024

Soft Comput

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Future communication networks use computing platforms i.e., data centers for enabling content access. The operation of data centers is evolving to meet new requirements such as reducing the operating cost. The use of data centers is recognized to have significant challenges due to high operating costs. The high operating costs arises due to the necessity of data center cooling. The cooling costs can be reduced by siting data centers in the underwater environment. In the underwater environment, data centers are cooled by freely available cold water. However, siting data centers in the underwater environment exposes them to risk from other underwater applications. The use of underwater data centers is susceptible to service loss due to the launch of missiles from submarines in defense applications. Underwater data centers are susceptible to service loss from the launch of missiles from submarines. Hence, it is necessary to design a network architecture that ensures continued service delivery when nuclear attacks occur. The presented research proposes a novel network architecture enabling service continuity in the underwater data center. The proposed architecture incorporates resiliency and comprises terrestrial and non–terrestrial data centers. The proposed network architecture incorporates redundancy and utilizes terrestrial and non-terrestrial data centers. In addition, the research presents a protocol enabling co-existence between underwater data centers and missile launching submarines used in defence applications. The research formulates and evaluates the operational duration, number of packets forwarding paths, and computing resource utilization as the metrics. Performance evaluation shows that the proposed network architecture improves the operational duration and computing resource utilization by an average of (27.7–71.5)% and (23.5–44.2)%, respectively. Furthermore, the proposed network architecture enables the realization of more resilient paths. The use of more resilient paths enhances packet transmission. Evaluation shows that the proposed network architecture enhances the number of resilient packets forwarding paths by (18.2–57.4)% on average.

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Simulation of the mushroom cloud generated from a high-energy explosion using large-eddy simulation

Cited by 6 publications

References 13 publications

Design and Testing of the Vortex Ring Facility

Design and Testing of the Vortex Ring Facility

Numerical simulation of the impact of ground reflected shock waves on the high explosive cloud

Nuclear resilient and redundant compute and communication integrated network

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