Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code

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LESKOVAR, Matjaž ;KONČAR, Boštjan ;CIZELJ, Leon .
Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 52, n.5, p. 292-308, august 2017. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/sl/article/simulation-of-a-reactor-cavity-steam-explosion-with-a-general-purpose-computational-fluid-dynamics-code/>. Date accessed: 22 nov. 2019. 
doi:http://dx.doi.org/.
Leskovar, M., Končar, B., & Cizelj, L.
(2006).
Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code.
Strojniški vestnik - Journal of Mechanical Engineering, 52(5), 292-308.
doi:http://dx.doi.org/
@article{.,
	author = {Matjaž  Leskovar and Boštjan  Končar and Leon  Cizelj},
	title = {Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {52},
	number = {5},
	year = {2006},
	keywords = {nuclear reactor accident; steam explosion; reactor cavity; computational fluid dynamics; },
	abstract = {A reactor cavity steam explosion might occur when, during a hypothetical severe reactor accident, the reactor vessel fails and the molten core pours into the water in the reactor cavity. A steam explosion is a fuel-coolant interaction process where the heat transfer from the melt to the water is so intense and rapid that the timescale for the heat transfer is shorter than the timescale for the pressure relief. This could lead to the formation of shock waves and the production of missiles at later times, during the expansion of the highly pressurized water vapour, which might endanger surrounding structures. The purpose of the paper is to demonstrate how steam explosions can be treated with a general purpose Computational Fluid Dynamics (CFD) code, to give an insight into the steam-explosion phenomenon in a typical Pressurized Water Reactor (PWR) cavity, and to provide a rough assessment of the vulnerabilities of cavity structures to steam explosions. To achieve this, a fit-for-purpose steam-explosion model was developed, followed by a comprehensive and reasonably conservative parametric steam-explosion study. The multiphase flow in the reactor cavity during the high-pressure pre-mixture expansion was simulated with the CFD code CFX-5.7.1 and the stresses in the reactor cavity walls were determined with the stress-analysis code ABAQUS/Explicit.},
	issn = {0039-2480},	pages = {292-308},	doi = {},
	url = {https://www.sv-jme.eu/sl/article/simulation-of-a-reactor-cavity-steam-explosion-with-a-general-purpose-computational-fluid-dynamics-code/}
}
Leskovar, M.,Končar, B.,Cizelj, L.
2006 August 52. Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 52:5
%A Leskovar, Matjaž 
%A Končar, Boštjan 
%A Cizelj, Leon 
%D 2006
%T Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code
%B 2006
%9 nuclear reactor accident; steam explosion; reactor cavity; computational fluid dynamics; 
%! Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code
%K nuclear reactor accident; steam explosion; reactor cavity; computational fluid dynamics; 
%X A reactor cavity steam explosion might occur when, during a hypothetical severe reactor accident, the reactor vessel fails and the molten core pours into the water in the reactor cavity. A steam explosion is a fuel-coolant interaction process where the heat transfer from the melt to the water is so intense and rapid that the timescale for the heat transfer is shorter than the timescale for the pressure relief. This could lead to the formation of shock waves and the production of missiles at later times, during the expansion of the highly pressurized water vapour, which might endanger surrounding structures. The purpose of the paper is to demonstrate how steam explosions can be treated with a general purpose Computational Fluid Dynamics (CFD) code, to give an insight into the steam-explosion phenomenon in a typical Pressurized Water Reactor (PWR) cavity, and to provide a rough assessment of the vulnerabilities of cavity structures to steam explosions. To achieve this, a fit-for-purpose steam-explosion model was developed, followed by a comprehensive and reasonably conservative parametric steam-explosion study. The multiphase flow in the reactor cavity during the high-pressure pre-mixture expansion was simulated with the CFD code CFX-5.7.1 and the stresses in the reactor cavity walls were determined with the stress-analysis code ABAQUS/Explicit.
%U https://www.sv-jme.eu/sl/article/simulation-of-a-reactor-cavity-steam-explosion-with-a-general-purpose-computational-fluid-dynamics-code/
%0 Journal Article
%R 
%& 292
%P 17
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 52
%N 5
%@ 0039-2480
%8 2017-08-18
%7 2017-08-18
Leskovar, Matjaž, Boštjan  Končar, & Leon  Cizelj.
"Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code." Strojniški vestnik - Journal of Mechanical Engineering [Online], 52.5 (2006): 292-308. Web.  22 Nov. 2019
TY  - JOUR
AU  - Leskovar, Matjaž 
AU  - Končar, Boštjan 
AU  - Cizelj, Leon 
PY  - 2006
TI  - Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - nuclear reactor accident; steam explosion; reactor cavity; computational fluid dynamics; 
N2  - A reactor cavity steam explosion might occur when, during a hypothetical severe reactor accident, the reactor vessel fails and the molten core pours into the water in the reactor cavity. A steam explosion is a fuel-coolant interaction process where the heat transfer from the melt to the water is so intense and rapid that the timescale for the heat transfer is shorter than the timescale for the pressure relief. This could lead to the formation of shock waves and the production of missiles at later times, during the expansion of the highly pressurized water vapour, which might endanger surrounding structures. The purpose of the paper is to demonstrate how steam explosions can be treated with a general purpose Computational Fluid Dynamics (CFD) code, to give an insight into the steam-explosion phenomenon in a typical Pressurized Water Reactor (PWR) cavity, and to provide a rough assessment of the vulnerabilities of cavity structures to steam explosions. To achieve this, a fit-for-purpose steam-explosion model was developed, followed by a comprehensive and reasonably conservative parametric steam-explosion study. The multiphase flow in the reactor cavity during the high-pressure pre-mixture expansion was simulated with the CFD code CFX-5.7.1 and the stresses in the reactor cavity walls were determined with the stress-analysis code ABAQUS/Explicit.
UR  - https://www.sv-jme.eu/sl/article/simulation-of-a-reactor-cavity-steam-explosion-with-a-general-purpose-computational-fluid-dynamics-code/
@article{{}{.},
	author = {Leskovar, M., Končar, B., Cizelj, L.},
	title = {Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {52},
	number = {5},
	year = {2006},
	doi = {},
	url = {https://www.sv-jme.eu/sl/article/simulation-of-a-reactor-cavity-steam-explosion-with-a-general-purpose-computational-fluid-dynamics-code/}
}
TY  - JOUR
AU  - Leskovar, Matjaž 
AU  - Končar, Boštjan 
AU  - Cizelj, Leon 
PY  - 2017/08/18
TI  - Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 52, No 5 (2006): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - nuclear reactor accident, steam explosion, reactor cavity, computational fluid dynamics, 
N2  - A reactor cavity steam explosion might occur when, during a hypothetical severe reactor accident, the reactor vessel fails and the molten core pours into the water in the reactor cavity. A steam explosion is a fuel-coolant interaction process where the heat transfer from the melt to the water is so intense and rapid that the timescale for the heat transfer is shorter than the timescale for the pressure relief. This could lead to the formation of shock waves and the production of missiles at later times, during the expansion of the highly pressurized water vapour, which might endanger surrounding structures. The purpose of the paper is to demonstrate how steam explosions can be treated with a general purpose Computational Fluid Dynamics (CFD) code, to give an insight into the steam-explosion phenomenon in a typical Pressurized Water Reactor (PWR) cavity, and to provide a rough assessment of the vulnerabilities of cavity structures to steam explosions. To achieve this, a fit-for-purpose steam-explosion model was developed, followed by a comprehensive and reasonably conservative parametric steam-explosion study. The multiphase flow in the reactor cavity during the high-pressure pre-mixture expansion was simulated with the CFD code CFX-5.7.1 and the stresses in the reactor cavity walls were determined with the stress-analysis code ABAQUS/Explicit.
UR  - https://www.sv-jme.eu/sl/article/simulation-of-a-reactor-cavity-steam-explosion-with-a-general-purpose-computational-fluid-dynamics-code/
Leskovar, Matjaž, Končar, Boštjan, AND Cizelj, Leon.
"Simulation of a Reactor Cavity Steam Explosion with a General Purpose Computational Fluid Dynamics Code" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 52 Number 5 (18 August 2017)

Avtorji

Inštitucije

  • Jože Stefan Institute, Reactor Engineering Devision, Slovenia
  • Jože Stefan Institute, Reactor Engineering Devision, Slovenia
  • Jože Stefan Institute, Reactor Engineering Devision, Slovenia

Informacije o papirju

Strojniški vestnik - Journal of Mechanical Engineering 52(2006)5, 292-308

A reactor cavity steam explosion might occur when, during a hypothetical severe reactor accident, the reactor vessel fails and the molten core pours into the water in the reactor cavity. A steam explosion is a fuel-coolant interaction process where the heat transfer from the melt to the water is so intense and rapid that the timescale for the heat transfer is shorter than the timescale for the pressure relief. This could lead to the formation of shock waves and the production of missiles at later times, during the expansion of the highly pressurized water vapour, which might endanger surrounding structures. The purpose of the paper is to demonstrate how steam explosions can be treated with a general purpose Computational Fluid Dynamics (CFD) code, to give an insight into the steam-explosion phenomenon in a typical Pressurized Water Reactor (PWR) cavity, and to provide a rough assessment of the vulnerabilities of cavity structures to steam explosions. To achieve this, a fit-for-purpose steam-explosion model was developed, followed by a comprehensive and reasonably conservative parametric steam-explosion study. The multiphase flow in the reactor cavity during the high-pressure pre-mixture expansion was simulated with the CFD code CFX-5.7.1 and the stresses in the reactor cavity walls were determined with the stress-analysis code ABAQUS/Explicit.

nuclear reactor accident; steam explosion; reactor cavity; computational fluid dynamics;