CFD modeling and simulation of turbulent fluid flow and dust dispersion in the 20-L explosion vessel equipped with the perforated annular nozzle

被引：31

作者：

Di Sarli, Valeria ^{[1
]}

Sanchirico, Roberto ^{[1
]}

Russo, Paola ^{[2
]}

Di Benedetto, Almerinda ^{[3
]}

机构：

[1] CNR, IRC, I-80125 Naples, Italy

[2] Univ Roma La Sapienza, Dipartimento Ingn Chim Mat Ambiente, I-00184 Rome, Italy

[3] Univ Naples Federico II, Dipartimento Ingn Chim Mat & Prod Ind, I-80125 Naples, Italy

来源：

JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES | 2015年 / 38卷

关键词：

Process safety; Dust explosion; CFD simulations; Standard explosion vessel; Turbulence; Dust dispersion; IGNITION; CHAMBER; DECAY;

D O I：

10.1016/j.jlp.2015.09.015

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A three-dimensional CFD model was developed to simulate the turbulent flow field induced by dust feeding and the associated dust dispersion within the 20-L explosion vessel equipped with the perforated annular nozzle. The model was validated against experimental data for pressure and root mean square velocity. Simulation results have shown that the turbulent kinetic energy is rather uniformly distributed and its values are significantly lower than those attained with the rebound nozzle. Furthermore, the perforated annular nozzle is able to generate a uniform dust/air cloud. However, a consistent fraction of the dust remains trapped inside the nozzle and, thus, it does not contribute to the explosion process. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：204 / 213

页数：10

共 15 条

[1] CFD simulation of turbulent fluid flow and dust dispersion in the 1 m3 explosion vessel equipped with the rebound nozzle
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[2] CFD simulations of turbulent fluid flow and dust dispersion in the 20 liter explosion vessel
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[4] CFD Simulation of the Dispersion of Binary Dust Mixtures in the 20 L Vessel
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JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES, 2020, 67
[5] Numerical simulation of hybrid dust/gas explosion experiments in the standard 20-L sphere
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[6] CFD simulations of dust dispersion in the 20 L vessel: Effect of nominal dust concentration
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[8] CFD simulation of turbulent flow field, feeding and dispersion of non-spherical dust particles in the standard 20 L sphere
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[9] Numerical simulation of dust explosion in the spherical 20l vessel
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BULLETIN OF THE POLISH ACADEMY OF SCIENCES-TECHNICAL SCIENCES, 2015, 63 (01) : 289 - 293
[10] Explosion Characteristics of Methane for CFD Modeling and Simulation of Turbulent Gas Flow Behavior during Explosion
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Veres, Jan
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APPLICATION OF EXPERIMENTAL AND NUMERICAL METHODS IN FLUID MECHANICS AND ENERGY 2016: XX ANNIVERSARY OF INTERNATIONAL SCIENTIFIC CONFERENCE, 2016, 1745

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