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Modeling of Hydrodynamics and Mass Transfer Processes in KDP Crystal Growth

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Abstract

The turbulent hydrodynamics in a conventional operating crystallizer for growing kalium dihydrophosphate crystals is analyzed by physical modeling methods. The potentialities of an axisymmetric crystallizer, which has similar tools for stirring solution but is able to ensure controlled laminar hydrodynamic flows are considered. A combined mathematical model is formulated, which takes into account both the convective salt transfer in the crystallizer on the basis of solving the Navier–Stokes and diffusion equations and the kalium dihydrophosphate crystal growth on the basis of the theoretical model. A parametric calculation is performed to determine the effect of each mechanism of solution motion, including the directed solution outflow from a tube into the crystallizer and the rotation of crystal and stirrer.

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ACKNOWLEDGMENTS

The study was carried out using the computing base of the Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences (theme no. АААА-А20-120011690136-2).

Funding

The study was supported by the Russian Foundation for Basic Research, project nos. 17-08-00078 and 16-29-11785.

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Authors and Affiliations

  1. Shubnikov Institute of Crystallography, Federal Research Center “Crystallography and Photonics,” Russian Academy of Sciences, 119333, Moscow, Russia

    A. E. Voloshin & V. L. Manomenova

  2. Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, 119526, Moscow, Russia

    N. A. Verezub & A. I. Prostomolotov

Authors
  1. N. A. Verezub
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  2. A. E. Voloshin
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  3. V. L. Manomenova
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  4. A. I. Prostomolotov
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Corresponding author

Correspondence to A. I. Prostomolotov.

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Translated by E. Bondareva

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Verezub, N.A., Voloshin, A.E., Manomenova, V.L. et al. Modeling of Hydrodynamics and Mass Transfer Processes in KDP Crystal Growth. Crystallogr. Rep. 65, 641–646 (2020). https://doi.org/10.1134/S1063774520040239

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  • DOI: https://doi.org/10.1134/S1063774520040239

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