We investigate wave-vortex interaction emerging from an expanding compact vortex cluster in a two-dimensional Bose-Einstein condensate. adapt techniques developed for gravitational objects to derive the characteristic modes of perturbatively around effective flow field. demonstrate existence orbits or sound-rings, analogy light-rings, and compute spectrum out-of-equilibrium cluster. The obtaine...

A conceptual model for targeted particle delivery is proposed using controlled vortex ring reconnection. Entrained particles can be efficiently transported within the core of rings which advect via self-induction. pair these particle-transporting traveling in streamwise direction along parallel trajectories will mutually interact, resulting a reconnection events. The causes topological change t...

This paper is an attempt to attain a new and profound model of the nature’s structure using a vortex-ringfractal theory (VRFT). Scientists have been trying to explain some phenomena in Nature that have not been explained so far. The aim of this paper is the vortex-ring-fractal modeling of elements in the Mendeleev’s periodic table, which is not in contradiction to the known laws of nature. We w...

Pulsed-jets are commonly used for aquatic propulsion, such as squid and jellyfish locomotion. The sudden ejection of a jet with each pulse engenders the formation of a vortex ring through the roll-up of the jet shear layer. If the pulse is too long, the vortex ring will stop forming and the remainder of the pulse is ejected as a trailing jet. Recent results from mechanical pulsedjets have demon...

In the Planck aether substratum model it is assumed that space is densely filled with both positive and negative Planck masses described by a nonlinear nonrelativistic operator field equation. Without expenditure of energy this substratum can form a lattice of vortex rings, with the vortex core radius equal the Planck length. The vortex ring radius is determined by a universal minimum energy qu...