Hydraulic-biological substantiation fish distributions in the border layer

Abstract

Abstract The aim of the research is the search and development of methods (tools) for regulating fish behavior in the conditions of changing the water stream’s kinematic structure. This is possible only through a thorough study of the kinematic, hydrodynamic features of the biological object’s behavior and their correlation with the kinematics and hydrodynamics of the habitat (river, boundary layer). The availability of such information undoubtedly opens up a broad prospect for creating the fish protection zones near water intakes or in the lower pools of hydroelectric facilities before entering the fish passage facilities, in which the movement, habitat of fish will occur in the most natural comfortable way with minimal energy consumption. Using the method of “comparing” the bio-hydrodynamic characteristics of fish with the water flow structural elements’ parameters, a number of general laws are established. On the basis of these laws the hydraulic calculation of the optimal vortex structures’ kinematic parameters for fish is performed.