13H40 : n° 1397 Modelling of the enar-field distribution of pollutants from a coastal outfall subject to tidal currents

Tatyana Lyubimova Natalya Shumilova Shengping Luo Bernard Roux
Institute of Continuous Media Mechanics UB RAS
Pollutant distribution from a coastal outfall is studied accounting for tidal currents. The problem is solved using k-eps model. The constants in the logarithmic law for vertical velocity profile in the bbl (bottom boundary layer) are obtained by processing experimental data from a current profiler. The near-field distribution of pollutant concentration at different distances from the diffusor are obtained for different times, in terms of ambient flow velocity and outfall discharge characteristics.

14H00 : n° 1402 Three dimensional modeling of large water reservoirs with complex geometry and essential density inhomogeneity in depth

Tatyana Lyubimova Anatoly Lepikhin N.S. Shumilova
Institute of Continuous Media Mechanics UB RAS
The paper is devoted to the development of hydrodynamic model of the largest water intake of Perm Region, located in the merging zone of two rivers with significantly different hydrochemical regimes, in the direct stock dams of Kama Hydroelectric Station. A combination of 2D and 3D calculation schemes is implemented. Numerical results will be applied for the optimization of technical characteristics and modes of operation of water intake and Kama Hydroelectric Station in order to improve the quality of water.

14H20 : n° 1399 Numerical modeling of a dilution and transport of highly salty effluent in water bodies

Anatoly Lepikhin Tatyana Lyubimova Ya.N. Parshakova Alexey Tiunov
Mining Institute UB RAS
The paper focuses on modeling of dilution and transport of highly salty effluent in water bodies. The modeling is made for three-dimensional unsteady regimes of turbulent mixing in the conditions of strong density stratification. Numerical results allow to determine the limits of applicability of two-dimensional hydrodynamic models and to estimate the maximal possible environmentally safe volumes of highly salty effluent disposal.