Assessment of four turbulence models in simulation of large-scale pool fires in the presence of wind using computational fluid dynamics (CFD)

被引:38
作者
Vasanth, S. [1 ]
Tauseef, S. M. [1 ]
Abbasi, Tasneem [1 ]
Abbasi, S. A. [1 ]
机构
[1] Pondicherry Univ, Ctr Pollut Control & Environm Engn, Chinnakalapet 605014, Puducherry, India
关键词
Pool fire; CFD simulation; Turbulence models; Flame shape; Combustion; THIN-LAYER BOILOVER; PROCESS INDUSTRIES; SOFTWARE PACKAGE; COMPARTMENT FIRE; FLAME GEOMETRY; BURNING RATES; RISK ANALYSIS; ACCIDENTS; VALIDATION; CONSEQUENCES;
D O I
10.1016/j.jlp.2013.04.001
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Pool fires are the most common of all process industry accidents. Pool fires often trigger explosions which may result in more fires, causing huge losses of life and property. Since both the risk and the frequency of occurrence of pool fires are high, it is necessary to model the risks associated with pool fires so as to correctly predict the behavior of such fires. Among the parameters which determine the overall structure of a pool fire, the most important is turbulence. It determines the extent of interaction of various parameters, including combustion, wind velocity, and entrainment of the ambient air. Of the various approaches capable of modeling the turbulence associated with pool fires, computational fluid dynamics (CFD) has emerged as the most preferred due to its ability to enable closer approximation of the underlying physical phenomena. A review of the state of the art reveals that although various turbulence models exist for the simulation of pool fire no single study has compared the performance of various turbulence models in modeling pool fires. To cover this knowledge-gap an attempt has been made to employ CFD in the assessment of pool fires and find the turbulence model which is able to simulate pool fires most faithfully. The performance of the standard k-epsilon model, renormalization group (RNG) k-epsilon model, realizable k-8 model and standard k-omega to model were studied for simulating the experiments conducted earlier by Chatris et al. (2001) and Casal (2013). The results reveal that the standard k-epsilon model enabled the closest CFD simulation of the experimental results. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1071 / 1084
页数:14
相关论文
共 73 条
  • [1] Accidental risk of superheated liquids and a framework for predicting the superheat limit
    Abbasi, Tasneem
    Abbasi, S. A.
    [J]. JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES, 2007, 20 (02) : 165 - 181
  • [2] Dust explosions - Cases, causes, consequences, and control
    Abbasi, Tasneem
    Abbasi, S. A.
    [J]. JOURNAL OF HAZARDOUS MATERIALS, 2007, 140 (1-2) : 7 - 44
  • [3] The boiling liquid expanding vapour explosion (BLEVE): Mechanism, consequence assessment, management
    Abbasi, Tasneem
    Abbasi, S. A.
    [J]. JOURNAL OF HAZARDOUS MATERIALS, 2007, 141 (03) : 489 - 519
  • [4] A scheme for the classification of explosions in the chemical process industry
    Abbasi, Tasneem
    Pasman, H. J.
    Abbasi, S. A.
    [J]. JOURNAL OF HAZARDOUS MATERIALS, 2010, 174 (1-3) : 270 - 280
  • [5] A new method for assessing domino effect in chemical process industry
    Abdolhamidzadeh, Bahman
    Abbasi, Tasneem
    Rashtchian, D.
    Abbasi, S. A.
    [J]. JOURNAL OF HAZARDOUS MATERIALS, 2010, 182 (1-3) : 416 - 426
  • [6] [Anonymous], 1991, EQUATIONS MOTION REA
  • [7] [Anonymous], 2009, HINDU
  • [8] Blazek J., 2005, Computational fluid dynamics: principles and applications, Vsecond, DOI DOI 10.1016/B978-0-08-099995-1.00011-7
  • [9] Casal J., 2013, COMMUNICATION
  • [10] A study of storage tank accidents
    Chang, JI
    Lin, CC
    [J]. JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES, 2006, 19 (01) : 51 - 59