Proceedings of the 2018 3rd International Conference on Modelling, Simulation and Applied Mathematics (MSAM 2018)

Numerical Simulation of Gas-Solid Two-Phase Jet in a Non-pressure-accumulated and Handheld Fire Extinguisher

Authors
Yidan Wu, Hongwei Zhuang, Pengfei Yu
Corresponding Author
Yidan Wu
Available Online July 2018.
DOI
10.2991/msam-18.2018.22How to use a DOI?
Keywords
non-pressure-accumulated; handheld fire extinguisher; gas-solid two-phase jet; numerical simulation
Abstract

The ultra-fine dry powder injection process in non-pressure-accumulated and handheld fire extinguishers involves gas-phase and solid-phase two-phase movement. The fire-extinguishing effect is closely related to its jet form. In order to study the jet form accurately, this paper selects the discrete particle model, combines the advantages of Lagrange method and Euler method, and uses CFD simulation software FLUENT to numerically simulate the gas-solid two-phase jet shape of a non-pressure-accumulated and handheld fire extinguisher. And compares the simulation results with the experimental results, analyzes the flow field characteristics inside and outside the cylinder. The results show that the numerical simulation agrees well with the experimental results and can better represent the motion state of the two-phase flow. The numerical simulation results show that the duration of extinguishing agent particles injection is 1.07s, which is very close to the actual injection duration of 1.13s. The difference between the two is 4.4%. Within the acceptable error range, it is further proved that the simulation results are good agreements with the experiment.

Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2018 3rd International Conference on Modelling, Simulation and Applied Mathematics (MSAM 2018)
Series
Advances in Intelligent Systems Research
Publication Date
July 2018
ISBN
10.2991/msam-18.2018.22
ISSN
1951-6851
DOI
10.2991/msam-18.2018.22How to use a DOI?
Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Yidan Wu
AU  - Hongwei Zhuang
AU  - Pengfei Yu
PY  - 2018/07
DA  - 2018/07
TI  - Numerical Simulation of Gas-Solid Two-Phase Jet in a Non-pressure-accumulated and Handheld Fire Extinguisher
BT  - Proceedings of the 2018 3rd International Conference on Modelling, Simulation and Applied Mathematics (MSAM 2018)
PB  - Atlantis Press
SP  - 93
EP  - 98
SN  - 1951-6851
UR  - https://doi.org/10.2991/msam-18.2018.22
DO  - 10.2991/msam-18.2018.22
ID  - Wu2018/07
ER  -