Most accidents involving hydrogen begins with its leakage and spreading in the air and spontaneous detonation. In this study, the simulation of propagation of helium in a confined space with different methods of injection and ventilation of helium, which is used as a safe replacement of hydrogen in experimental studies. Five experiments were simulated in the range from laminar to developed turbulent with different Froude number, which determines the regime of the outflow of the helium in the air. The analysis of applicability of various turbulence models was conducted, which are used to close the system of equations of momentum transport. Comparison of the results of computational studies with experimental data showed good agreement. In particular, for transition and turbulent regime error of numerical results lies in the range from 5 to 15% for all turbulence models considered. This indicates applicability of the methods considered for hydrogen safety problems.

Topics
Chemical elements, Fluid mechanics, Turbulence theory and modelling, Public policy and governance
1.
V.
 
Molkov
,
Fundamentals of hydrogen safety engineering II
(
Ventus Publishing ApS
,
2012
).
Google Scholar
 
2.
J.-B.
 
Suffers
 and
V. V.
 
Molkov
,
Int. J. of Hydrog. Energy
 
39
(
11
),
6268
–
6285
(
2014
).
https://doi.org/10.1016/j.ijhydene.2013.06.060
Crossref
Search ADS
 
3.
G.
 
Bernard-Michel
,
B.
 
Cariteau
,
J.
 
Ni
,
S.
 
Jallais
,
E.
 
Vyazmina
, et al, “
CFD Benchmark Based on Experiments of Helium Dispersion in a 1 m3 Enclosure - Intercomparisons For Plumes
,”
in 5th International Conference on Hydrogen Safety - 2013: (International Association for Hydrogen safety (HySafe
),
2013
).
Google Scholar
 
4.
B.
 
Cariteau
 and
I.
 
Tkatschenko
, “
Experimental study of the effects of vent geometry on the dispersion of a buoyant gas in a small enclosure
,” In
i4th International Conference on Hydrogen Safety – 2011
(
International Association for Hydrogen safety (HySafe
),
San Francisco, USA
) (
2011
).
Google Scholar
Crossref
Search ADS
 
5.
Rapport DM2S/SFME/LEEF RT/2010-016/A: Rep. / CEA; Executed by
B.
 
Cariteau
 (
2010
).
6.
ANSYS CFX-Solver Theory Guide, Release 13, ANSYS Inc. (
2010
).
7.
A. Y.
 
Varaksin
,
High Temp.
 
57
,
555
–
572
(
2019
).
https://doi.org/10.1134/S0018151X19040230
Crossref
Search ADS
 
8.
USER GUIDE STAR-CCM, Version 8.02, CD-adapco Inc. (
2013
).
9.
ANSYS CFX Modeling Guide, Release 13, ANSYS Inc. (
2010
).
10.
STAR-CD Methodology, Version 4.12, CD-adapco Group (
2009
).
11.
A. Y.
 
Varaksin
 and
M. A.
 
Orlov
,
Dokl. Phys.
 
63
,
385
–
387
(
2018
).
https://doi.org/10.1134/S1028335818090070
Crossref
Search ADS
 
12.
A. Y.
 
Varaksin
,
High Temp.
 
54
,
409
–
427
(
2016
).
https://doi.org/10.1134/S0018151X16030226
Crossref
Search ADS
 
13.
A. Y.
 
Varaksin
,
High Temp.
 
55
(
2
),
286
–
309
(
2017
).
https://doi.org/10.1134/S0018151X17020201
Crossref
Search ADS
 
14.
S. A.
 
Gaponov
,
Y. G.
 
Ermolaev
,
N. N.
 
Zubkov
,
A. D.
 
Kosinov
, et al 
Fl. Dynam.
 
52,
 
769
–
778
(
2017
).
Crossref
Search ADS
 
15.
V. V.
 
Gorskii
,
M. G.
 
Koval'skii
 and
M. A.
 
Pugach
,
J. of Eng. Phys. and Thermoph.
 
91
(
5
),
1313
–
1321
(
2018
).
https://doi.org/10.1007/s10891-018-1863-3
Crossref
Search ADS
 
16.
S.
 
Isaev
,
M.
 
Gritckevich
,
A.
 
Leontiev
 and
I.
 
Popov
,
Acta Astron.
 
163
(
A
),
202
–
207
(
2019
).
https://doi.org/10.1016/j.actaastro.2019.01.033
Crossref
Search ADS
 
17.
V. V.
 
Kuzenov
,
A. O.
 
Dobrynina
 and
V. V.
 
Shumaev
, “
Calculating Processes Of Laminar And Turbulent Heat Transfer Around The Elements Of The Aircraft
,” in
6th International Conference Heat and Mass Transfer and Hydrodynamics in Swirling Flows, IOP Conf. Series 980
(
Novosibirsk, Russian Federation
, November
2017
),
012023
.
Google Scholar
Crossref
Search ADS
 
18.
A.
 
Nikolaeva
,
A.
 
Skibin
,
A.
 
Krutikov
,
L.
 
Golibrodo
, et al, “
Validation Of CFD Models For Hydrogen Safety Application
,” in
The Proceedings of the International Conference on Nuclear Engineering  (ICONE)
. (
2015
).
Google Scholar
 
This content is only available via PDF.
© 2020 Author(s).
2020
Author(s)
You do not currently have access to this content.