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The effects of the horizontal turbulent viscosity coefficient are numerically investigated on the example of spring thermal bar development in Lake Dolgoye (Belarus) using a nonhydrostatic 2.5D model including the equations of continuity, quantity of motion, energy, and mineralization balance. The results of computational experiments have shown that the value of this coefficient affects the rate of water warming in the lakeshore zone, the extent of mixing in the deeper part and the general dynamics of spring thermal bar development in Lake Dolgoye. It is also found that the timing of thermal bar formation may depend on turbulent viscosity. #COMESYSO1120.

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Numerical Modeling of the Effects of Horizontal Turbulent Viscosity Coefficient on the Example of Spring Thermal Bar Development in Lake Dolgoye, Belarus

  • 会议论文

  • 发表日期：

    2025年

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  • Bair O. Tsydenov,
  • Dmitriy V. Degi,
  • Andrey A. Bart,
  • Vladislava V. Churuksaeva,
  • Nikita S. Trunov,
  • Anastasia V. Lutsenko

摘要

The effects of the horizontal turbulent viscosity coefficient are numerically investigated on the example of spring thermal bar development in Lake Dolgoye (Belarus) using a nonhydrostatic 2.5D model including the equations of continuity, quantity of motion, energy, and mineralization balance. The results of computational experiments have shown that the value of this coefficient affects the rate of water warming in the lakeshore zone, the extent of mixing in the deeper part and the general dynamics of spring thermal bar development in Lake Dolgoye. It is also found that the timing of thermal bar formation may depend on turbulent viscosity. #COMESYSO1120.