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Registration Number

0221U107075, 0119U101481 , R & D reports

Title

Mathematical and computer tools for assessing radiation exposure in case of accidents with spill of liquid radioactive media

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Head

Kameneva Iryna P.,

Registration Date

26-12-2021

Organization

Institute of Problems of Modeling in Energy named after GE Pukhov of the National Academy of Sciences of Ukraine

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 In order to develop a mathematical model of evaporation from the open surface of radioactive liquid, physical phenomena that have a significant impact on the intensity of this process were studied. The main assumptions for modeling this group of events were highlighted. To take into account the peculiarities of modeling events with liquid radioactive spills (LRS), a mathematical model is proposed, which allows obtaining a dynamic picture of the volume concentrations of radionuclides in the air of the process room and the power of release into the environment. The model has demonstrated an acceptable level of conservatism in its validation and verification at real events and is ready for implementation in research activities. The developed mathematical model was implemented in the MATHCAD software environment and can be integrated with modern software products OpenFOAM, SolidWorks, ANSYS FLUENT / CFX depending on the application. Testing of the developed model of atmospheric emission formation during LRS spill events using JRODOS DSS demonstrated that this model can be successfully used for atmospheric dispersion modeling and dose prediction.

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Artemchuk Volodymyr O.
Kyrylenko Yurii O.
Popov Oleksandr О.
Iatsyshyn Andrii V.