Hydrodynamics Laboratory
Authorization required.
The main directions of scientific activity:
- studies of the dynamics of currents, vortices and turbulence in geophysical environments (oceans, seas, lakes, estuaries, reservoirs);
- study of the mechanisms of formation, evolution and interaction of vortices in a rotating stratified fluid and unsteady flows flowing around underwater hills and depressions;
- study of the pumping effect and its manifestations in geophysical processes (during the propagation of tidal waves in shallow waters, intrusion of seawater into the mouths of tidal rivers and underground horizons, temperature distribution in ice);
- experimental studies of natural processes in the estuaries of the White Sea;
- laboratory modeling of vortex and wave processes.
- Laboratory modeling
- Field research
- Mathematical modeling
Research directions
Experimental and theoretical studies of dynamic and energetic characteristics of water movement in tidal estuaries
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In the course of field work, unique materials have been collected in the tidal estuaries of the rivers of the White Sea basin to study the features of hydrodynamics. Special synchronous measurements of water levels and flow rates in two channels make it possible to assess the contribution of forces determining the movement of water during the tidal cycle, as well as calculate ranges of changes in hydraulic resistance. Also, based on data on flow velocities measured using ADCP in winter from ice, the average kinetic energy of the flow, the average energy of pulsations and the Pocket number characterizing the degree of turbulence in the flow are calculated.
Laboratory experiments on the study of topographic vortices
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On a specially equipped installation, streams of rotating liquid were created over various forms of underwater terrain. Glycerin solutions were used as the studied liquids. In an experiment with a 30% glycerin solution, a cylindrical Taylor column, an anticyclonic topographic vortex over an underwater elevation, was well observed. The vortex did not leave the annular perturbation region. And in an experiment with a 45% glycerin solution, it was possible to fix the dome surface of the forming upper vortex torus. Similar phenomena are observed in the atmosphere: the atmospheric vortex, stationary in relation to the mountain, is divided into several horizontal "layers".
Publications and patents
Lab address
Москва, улица Губкина, 3
Authorization required.