MATHEMATICAL MODELING OF UNSTEADY SEPARATION PROCESSES IN A CASCADE OF GAS CENTRIFUGES FOR SEPARATION OF KRYPTON ISOTOPES
A. A. Orlov, A. A. Ushakov, V. P. Sovach
VANT. Ser.: Mat. Mod. Fiz. Proc 2017. Вып.3. С. 51-61.
Operation of a cascade of gas centrifuges is associated with unsteady separation processes. They lower the effectiveness of cascade and affect the final product quality. In this connection, the full-scale accounting of unsteady processes in the multicomponent isotope mixture separating stage has become an urgent problem. By present time, there have been developed mathematical models of unsteady separation processes with a restricted application area, i.e. the simulation is possible only for steady hydraulic parameters of a gas centrifuge cascade. Earlier, the paper authors developed a mathematical model of unsteady hydraulic processes in gas centrifuge cascades for the separation of multicomponent isotope mixtures and tested it for separation of Si, Xe, W, and Ni isotopes. It was demonstrated that the model properly described unsteady hydraulic processes. The present paper describes the development of a mathematical model of unsteady separation processes in a gas centrifuge cascade for the separation of multicomponent mixtures of isotopes. The model was verified by calculating parameters of unsteady separation processes in a model cascade of centrifuges for separating krypton isotopes. Comparison between the calculated parameters and data obtained by other authors demonstrates that the model properly describes unsteady separation processes in a cascade of gas centrifuges for the separation of multicomponent isotope mixtures. Keywords: gas centrifuge, multicomponent mixture of isotopes, separating stage, isotope, hydraulics, separation, modeling, unsteady processes.
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