An inter-comparison exercise on CFD model capabilities to simulate hydrogen deflagrations with pressure relief vents

被引：33

作者：

Baraldi, D. ^{[1
]}

Kotchourko, A. ^{[2
]}

Lelyakin, A. ^{[2
]}

Yanez, J. ^{[2
]}

Gavrikov, A. ^{[3
]}

Efimenko, A. ^{[3
]}

Verbecke, F. ^{[4
]}

Makarov, D. ^{[4
]}

Molkov, V. ^{[4
]}

Teodorczyk, A. ^{[5
]}

机构：

[1] Joint Res Ctr, NL-1755 ZG Petten, Netherlands

[2] Res Ctr Karlsruhe FZK, D-76021 Karlsruhe, Germany

[3] Res Ctr Kurchatov Inst KI, Moscow 123182, Russia

[4] Univ Ulster, HySAFER Ctr, Newtownabbey BT37 0QB, Antrim, North Ireland

[5] Warsaw Univ Technol, PL-00665 Warsaw, Poland

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2010年 / 35卷 / 22期

关键词：

CFD; Vented combustion; Hydrogen safety; LARGE-EDDY SIMULATION; GAS-EXPLOSIONS; INTERCOMPARISON EXERCISE; AIR DEFLAGRATIONS; COMBUSTION; MIXTURES; PREDICT; TRANSITION; DETONATION; ATMOSPHERE;

D O I：

10.1016/j.ijhydene.2010.08.106

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The comparison between experimental data and simulation results of hydrogen explosions in a vented vessel is described in the paper The validation exercise was performed in the frame of the European Commission co funded Network of Excellence HySafe (Hydrogen Safety as an Energy Carrier) that has the objective to facilitate the safe introduction of hydrogen technologies The mitigation effect of vents on the strength of hydrogen explosions is a relevant issue in hydrogen safety Experiments on stoichiometric hydrogen deflagrations in a 0 95 m(3) vessel with vents of different size (0 2 m(2) and 0 3 m(2)) have been selected in the available scientific literature in order to assess the accuracy of computational tools and models in reproducing experimental data in vented explosions Five organizations with experience in numerical modelling of gas explosions have participated to the code benchmarking activities with four CFD codes (COM3D, REACFLOW, bob and FLUENT) and one code based on a mathematical two zone model (VEX) The numerical features of the different codes and the simulations results are described and compared with the experimental measurements The agreement between simulations and experiments can be considered satisfactory for the maximum overpressure while correctly capturing some relevant parameters related to the dynamics of the phenomena such as the pressure rise rate and its maximum has been shown to be still an open issue (C) 2010 Professor T Nejat Veziroglu Published by Elsevier Ltd All rights reserved

引用

页码：12381 / 12390

页数：10

共 72 条

[1] Experimental study of flame acceleration and the deflagration-to-detonation transition under conditions of transverse venting [J].