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.

1.
V.
Molkov
,
Fundamentals of hydrogen safety engineering II
(
Ventus Publishing ApS
,
2012
).
2.
J.-B.
Suffers
and
V. V.
Molkov
,
Int. J. of Hydrog. Energy
39
(
11
),
6268
6285
(
2014
).
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
).
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
).
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
).
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
).
12.
A. Y.
Varaksin
,
High Temp.
54
,
409
427
(
2016
).
13.
A. Y.
Varaksin
,
High Temp.
55
(
2
),
286
309
(
2017
).
14.
S. A.
Gaponov
,
Y. G.
Ermolaev
,
N. N.
Zubkov
,
A. D.
Kosinov
, et al. 
Fl. Dynam.
52,
769
778
(
2017
).
15.
V. V.
Gorskii
,
M. G.
Koval'skii
and
M. A.
Pugach
,
J. of Eng. Phys. and Thermoph.
91
(
5
),
1313
1321
(
2018
).
16.
S.
Isaev
,
M.
Gritckevich
,
A.
Leontiev
and
I.
Popov
,
Acta Astron.
163
(
A
),
202
207
(
2019
).
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
.
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
).
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