Numerical simulation of a counterflow diffusion flame in supersonic airflow

Sodium-water reaction (SWR) is a design basis accident of a sodium-cooled fast reactor (SFR). A breach of the heat transfer tube in a steam generator results in contact of liquid sodium with water. Typical phenomenon is that the pressurized water blows off, vaporizes, and mixes with the liquid sodium. It is necessary to quantify the SWR phenomena in the safety evaluation of the SFR system. In this paper, a new computer program has been developed and the SWR in a counterflow diffusion flame is studied by a numerical simulation and an experiment. The experiment is designed based on the numerical simulation so that the stable reaction flame is maintained for a long time and physical and chemical quantities are measured. From the comparison of the analysis and the experiment, there exist discrepancies that may be caused by the assumptions of the chemical reaction. Hence, a new experiment is proposed to enhance the measurement accuracy and to investigate the reason of the disagreement. The authors propose a depressurized experiment and show the preliminary result of the experiment. It is found that a stable chemical reaction flame is formed. With the depressurization, it is expected that the flame location can be controlled and the reaction region becomes thicker because of decrease in the reactant gas density.

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Direct numerical simulation of a laminar diffusion flame established over a horizontal flat plate in micro-gravity environment

Journal de Physique IV (Proceedings) ◽

10.1051/jp4:2001640 ◽

2001 ◽

Vol 11 (PR6) ◽

pp. Pr6-331-Pr6-338 ◽

Cited By ~ 1

Author(s):

H. Y. Wang ◽

P. Corderio ◽

P. Joulain

Keyword(s):

Numerical Simulation ◽

Direct Numerical Simulation ◽

Flat Plate ◽

Diffusion Flame ◽

Laminar Diffusion Flame ◽

Laminar Diffusion ◽

Micro Gravity

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NOx emission from high-temperature air/methane counterflow diffusion flame

International Journal of Thermal Sciences ◽

10.1016/s1290-0729(02)01364-9 ◽

2002 ◽

Vol 41 (7) ◽

pp. 693-698 ◽

Cited By ~ 29

Author(s):

Ryugo Fuse ◽

Hideaki Kobayashi ◽

Yiguang Ju ◽

Kaoru Maruta ◽

Takashi Niioka

Keyword(s):

High Temperature ◽

Diffusion Flame ◽

Nox Emission ◽

Counterflow Diffusion Flame

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Numerical Simulation of the Effects of Hydrogen Addition to Fuel on the Structure and Soot Formation of a Laminar Axisymmetric Coflow C2H4/(O2-CO2) Diffusion Flame

Combustion Science and Technology ◽

10.1080/00102202.2018.1532413 ◽

2018 ◽

Vol 191 (10) ◽

pp. 1743-1768 ◽

Cited By ~ 5

Author(s):

Yang Wang ◽

Xiaofang Liu ◽

Mingyan Gu ◽

Xueliang An

Keyword(s):

Numerical Simulation ◽

Diffusion Flame ◽

Soot Formation ◽

Hydrogen Addition ◽

Co2 Diffusion

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The extinction limits of a hydrogen counterflow diffusion flame above liquid oxygen

Combustion and Flame ◽

10.1016/s0010-2180(03)00149-4 ◽

2003 ◽

Vol 135 (1-2) ◽

pp. 87-96 ◽

Cited By ~ 23

Author(s):

Matthew Juniper ◽

Nasser Darabiha ◽

Sébastien Candel

Keyword(s):

Diffusion Flame ◽

Liquid Oxygen ◽

Counterflow Diffusion Flame

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Application of the “counterflow diffusion flame” method in simulating the final ballistics of ammunition based on reaction materials

Journal of «Almaz – Antey» Air and Defence Corporation ◽

10.38013/2542-0542-2018-4-37-45 ◽

2018 ◽

pp. 37-45

Author(s):

E. A. Khmelnikov ◽

T. E. Zavodova ◽

K. V. Smagin ◽

S. F. Dubinina

Keyword(s):

Mathematical Simulation ◽

Diffusion Flame ◽

Light Alloy ◽

Additional Energy ◽

Counterflow Diffusion Flame ◽

Flame Method ◽

Soft Targets

Due to the constant modernization of weapons and ammunition production, it has become necessary to search for new types of equipment. Within the research, we examine the possibility of using fluoroplastic as a reaction material which can replace explosives in ammunition used to destroy lightly armored and soft targets. The paper shows the results of experiments and mathematical simulation of the fluoroplastic striker penetrating into the light alloy barriers. The counterflow diffusion flame method was used to take into account the additional energy released as a result of interaction during the simulation

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