On the dynamics of vortex–droplet co-axial interaction: insights into droplet and vortex dynamics

S Sharma, AP Singh, S Basu - Journal of Fluid Mechanics, 2021 - cambridge.org
Interaction of droplets with vortical structures is ubiquitous in nature, ranging from raindrops
to a gas turbine combustor. In this work, we elucidate the mechanism of co-axial interaction …

Collisions of vortex rings with hemispheres

TH New, B Xu, S Shi - Journal of Fluid Mechanics, 2024 - cambridge.org
A numerical investigation was conducted on hemisphere hypothesizes that the recurring
tertiary vortex ring formations cease only when the primary vortex ring slows down …

The self-propulsion of a body with moving internal masses in a viscous fluid

EV Vetchanin, IS Mamaev, VA Tenenev - Regular and Chaotic Dynamics, 2013 - Springer
An investigation of the characteristics of motion of a rigid body with variable internal mass
distribution in a viscous fluid is carried out on the basis of a joint numerical solution of the …

Deformation of a vortex ring caused by its impingement on a sphere

VL Nguyen, K Takamure, T Uchiyama - Physics of Fluids, 2019 - pubs.aip.org
The deformation of a vortex ring caused by its impingement on a sphere was numerically
investigated using a proposed vortex-in-cell method. The method was validated by …

Simplified dynamics model of a sphere decelerating freely in a fluid

A Velazquez, A Barrero-Gil - Physics of Fluids, 2024 - pubs.aip.org
An experimental/theoretical study has been presented on the problem of the dynamic
equation of motion of a close to neutral buoyancy sphere (0.04 m in diameter) decelerating …

Experimental investigation on the impingement of synthetic jet vortex rings on a spherical wall

C Chen, D Gao, WL Chen - Physical Review Fluids, 2022 - APS
An experimental study was conducted to investigate the influence of sphere diameter and
Reynolds number on synthetic jet vortex rings impinging on a spherical wall. Laser-induced …

Hamiltonian structure for a neutrally buoyant rigid body interacting with N vortex rings of arbitrary shape: the case of arbitrary smooth body shape

BN Shashikanth, A Sheshmani, SD Kelly… - … and Computational Fluid …, 2008 - Springer
We present a (noncanonical) Hamiltonian model for the interaction of a neutrally buoyant,
arbitrarily shaped smooth rigid body with N thin closed vortex filaments of arbitrary shape in …

Coaxial and non-coaxial collisions between vortex rings and stationary spheres

B Xu, TH New - Physics of Fluids, 2024 - pubs.aip.org
A large-eddy simulation-based study has been carried out focusing on the coaxial and non-
coaxial collisions between a R e Γ 0= 3000 vortex ring and stationary spheres. The effect of …

[PDF][PDF] Flow and acoustic characteristics of high Mach number vortex rings during evolution and wall-interaction: an experimental investigation

T Murugan - Indian Institute of Technology, Kanpur, India, 2008 - researchgate.net
Flow and acoustic characteristics of high Mach number compressible vortex rings have been
investigated in this thesis. Features associated with formation and evolution of vortex rings …

Hydrodynamic impulse enhancement of a vortex ring interacting with an axisymmetric co-axial aperture

JC Hu, SD Peterson - Journal of Fluid Mechanics, 2021 - cambridge.org
The dynamics of a vortex ring advecting towards and interacting with a solid wall with a
coaxial aperture is governed by the aperture-to-ring radius ratio, increases (slip-through …