Visualization of the Self-Motion of a Free Wedge of Neutral Buoyancy in a Tank Filled with a Continuously Stratified Fluid and Calculation of Perturbations of the Fields of Physical Quantities Putting the Body in Motion

Abstract

Based on the results of the space-time analysis of the equations of motion, a technique for visualizing the flow caused by the diffusion of NaCl salt near a horizontal wedge in a fluid continuously stratified in salinity is developed. A laboratory setup is created in which diffusion-induced flows on bodies of neutral buoyancy and self-motion of a horizontal wedge are visualized using various optical methods. Shadowgrams of a free self-moving wedge placed on a neutral buoyancy horizon in a continuously stratified salt solution are compared with the results of calculations.