Verification of Analytical Test Based Thermohydraulic Systems Codes for One- and Two-Phase Liquid-Metal Flows

Usov, E. V.; Butov, A. A.; Klimonov, I. A.; Chukhno, V. I.; Mosunova, N. A.; Chalyi, R. V.; Ryzhov, N. I.

doi:10.1007/s10512-018-0426-1

Cited by 2 publications

(4 citation statements)

References 6 publications

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“…Simulation methods were developed to simulate severe accidents with core degradation in fast reactors with different fuel types (oxide, metallic and nitride) and different liquid metal coolant (sodium and lead). These methods were implemented in the SAFR module [2][3][4], being the part of the EUCLID/V2 coupled code [1]. To simulate melt relocation the system of the mass, energy and momentum equation is used:…”

Section: The Basic Model To Simulate Thermal Destruction Of the Fuel Pinmentioning

confidence: 99%

“…Using the software module for calculating the destruction of fuel pins [2][3][4], calculations were carried out for two different energy release: uniform along the fuel length and non-uniform (sin(x)law).…”

Section: Fuel Pin Modelmentioning

confidence: 99%

“…To analyze the processes of destruction of the core elements of promising reactors, a universal design code is being developed [1], which includes a module for calculating the destruction of the core and fuel elements (fuel elements) [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of different factors on the features of thermal destruction of a fuel pin

Usov

Saikina

Chuhno

2021

J. Phys.: Conf. Ser.

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The presented work studies the influence of various factors that affect the specific features of fuel pins melting. For this purpose, fuel pins with different geometries and energy release are considered. Numerical simulation of melting is carried out using a program module for calculating the destruction of fuel rods. Comparison with theoretical calculations is made. The analysis of the convergence of calculations with respect to the time step value and the number of calculated cells along the radius and height is carried out. As a result of work with the use of numerical methods, the characteristic times of destruction of fuel elements during an accident with a loss of coolant flow rate (an accident of the ULOF type) and the dependence of weight loss on time are obtained under various conditions.

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Section: The Basic Model To Simulate Thermal Destruction Of the Fuel Pinmentioning

confidence: 99%

Section: Fuel Pin Modelmentioning

confidence: 99%

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Analysis of different factors on the features of thermal destruction of a fuel pin

Usov

Saikina

Chuhno

2021

J. Phys.: Conf. Ser.

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“…The heat transfer between melt and fuel rod's surface is simulated at the first stage. Both two stages take place at the same step [1,2]. The example of the momentum equation is presented below:…”

Section: Basic Modelsmentioning

confidence: 99%

Numerical investigations of stainless steel melt motions on the surface of uranium dioxide

et al. 2019

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The paper contains the results of numerical simulation of stainless steel melt motions on the surface of uranium dioxide. The investigations are performed for purposes of understanding of the fuel rod behavior during the core disruptive accident in the fast reactors. The systems of mass, energy and momentum conservation equations are solved to simulate melt motion on the surface of the fuel pin. Heat transfer and friction between melt and pin's surface and melt and coolant flow are taken into consideration. The dependences of mass of the melt and the features of the melt motion on coolant velocity and contact angle between melt and surface of the fuel rod are presented.

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Verification of Analytical Test Based Thermohydraulic Systems Codes for One- and Two-Phase Liquid-Metal Flows

Cited by 2 publications

References 6 publications

Analysis of different factors on the features of thermal destruction of a fuel pin

Analysis of different factors on the features of thermal destruction of a fuel pin

Numerical investigations of stainless steel melt motions on the surface of uranium dioxide

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