REVIEW OF EXISTING APPROACHS TO MODELING OF DISPERSAL OF RADIOACTIVE SUBSTANCES IN SURFACE WATER OBJECTS IN THE FRAMEWORK OF DEVELOPMENT OF CPS "BAKIS" (PREPRINT IBRAE-2018-04)

Preprint IBRAE-2018-04 

Nosov A.V., et al. 

Computational prognostic system (CPS) "BAKIS" is designed to simulate the dispersal of radioactive impurities in surface water objects of land and to forecast the radiation impact from their contamination on population and water biota. One of the purposes of its development is the need to justify the safety of existing and decommissioned radiation hazardous facilities, whose activities can affect water objects both by direct discharges of radioactive substances and through contamination in case of accidental atmospheric releases.

The paper provides an overview of existing software tools that can be used to perform calculations of various complexity levels for flowing or weakly flowing water objects, describes the imposed constraints, which require the development of new, more functional software solutions. A detailed description of existing mathematical models of impurity transport in the aquatic environment taking into account auxiliary models, as well as description of approaches to assessing the exposure doses for population due to water use and radiation impact on aquatic biota is given. 

Bibliographical reference

A.V. Nosov, A.L. Krylov, D.V. Aron, V.P. Merkushov. Review of existing approachs to modeling of dispersal of radioactive substances in surface water objects in the framework of development of CPS "BAKIS" / Preprint IBRAE-2018-04 — Moscow: NSI RAS, 2018 — 43 p. — Bibliogr: 54 items. 

© Nuclear Safety Institute, 2018