Proceedings of the International scientific and practical conference ―Education and Scientific Progress‖ (April 24-26, 2026) / Publisher website: www.naukainfo.com. – Manchester, United Kingdom, 2026. - 218 p.

138 а b Fig. 2. Visualization of the Atlantis II seamount model for the coordinates of the red dye supply (x=-0.05H; y=0; z=-0.05H):the side (a) and the top (b) The results of visual researches (Fig. 2a) showed that in front of the top of the Atlantis II seamount model, the colored dye begins to rise in front of the mountain surface at a distance of x=-0.25H and rises to a distance of z=0.1H above the mountain top. At the same time, the colored jet, oscillating intensively, curled up into an elongated spiral-shaped vortex structure, which over time acquired significant oscillations, which ultimately led to its rupture and loss of coherence. At a distance of almost x=(1-1.5)H, the spiral-shaped structure broke up into separate small-scale vortex filaments, which gradually merged or paired and curled up into a large-scale vortex structure with a longitudinal scale of about x=0.5H and a vertical scale of about z=0.25H. Slowly rotating at a frequency of about (0.5-1) Hz, this vortex structure travels a distance of about two of its transverse scales, expands and takes the form of a circular vortex structure. Then this structure significantly increases in the vertical direction and gradually loses its identity and turns into a shapeless cloud of colored dyes, which approach both the water surface and the bottom of the channel at a distance of about 3H behind the seamount model. The results of visual researches, which were recorded above the water surface in the x-y plane (Fig. 2b), showed that when approaching the surface of the seamount model, the jets of colored dyes begin to oscillate and bypass the crest of the mountain from the sides, where the flow velocity has increased, due to the clogging of the flow in the channel by the seamount model. With a distance of about 0.05H, the central red