Hysteretic growth and decay of a waterspout column

IV Naumov, MA Herrada, BR Sharifullin, VN Shtern - Physical Review Fluids, 2018 - APS
This work explores a model waterspout: a flow of water and sunflower oil driven by the
rotating lid in a sealed vertical cylindrical container. The experiments reveal the hysteretic …

[HTML][HTML] Dual vortex breakdown in a two-fluid confined flow

IV Naumov, BR Sharifullin, MA Tsoy, VN Shtern - Physics of Fluids, 2020 - pubs.aip.org
This experimental study reveals a spectacular and important phenomenon—double vortex
breakdown—in a swirling flow of two immiscible fluids where vortex breakdown bubbles …

[HTML][HTML] Counterflow slip in a two-fluid whirlpool

IV Naumov, SG Skripkin, VN Shtern - Physics of Fluids, 2021 - pubs.aip.org
This experimental study reveals a counterflow slip at the interface of two immiscible fluids
filling a sealed vertical cylindrical container whose bottom disk rotates while other walls are …

Slip at the interface of a two-fluid swirling flow

IV Naumov, MA Herrada, BR Sharifullin, VN Shtern - Physics of Fluids, 2018 - pubs.aip.org
This experimental and numerical study of a two-fluid swirling flow reveals a discontinuity of
the radial velocity at the interface. The motion is driven by the rotating lid in a sealed vertical …

Electrohydrodynamic ionic wind, force field, and ionic mobility in a positive dc wire-to-cylinders corona discharge in air

N Monrolin, O Praud, F Plouraboué - Physical Review Fluids, 2018 - APS
Ionic wind refers to the acceleration of partially ionized air between two high-voltage
electrodes. We study the momentum transfer from ions to air, resulting from ionic wind …

Vortex breakdown in the lower fluid of two-fluid swirling flow

IV Naumov, BR Sharifullin, VN Shtern - Physics of Fluids, 2020 - pubs.aip.org
This paper describes the first experimental evidence of the vortex breakdown development
in the lower fluid in a sealed vertical cylindrical container in which two immiscible fluids …

Formation of a thin circulation layer in a two-fluid rotating flow

IV Naumov, VG Glavny, BR Sharifullin, VN Shtern - Physical Review Fluids, 2019 - APS
Recent numerical simulations predict the formation of a thin circulation layer (TCL) near the
interface in a steady axisymmetric swirling flow of two immiscible fluids. This phenomenon …

Velocity jumps and the Moffatt eddy in two-fluid swirling flows

IV Naumov, BR Sharifullin, AY Kravtsova… - … Thermal and Fluid …, 2020 - Elsevier
Recent theoretical and numerical studies predict the Moffatt eddies near the interface-wall
intersection in a two-fluid flow. The current work provides the first experimental evidence of …

Lagrangian chaos in steady three-dimensional lid-driven cavity flow

F Romanò, T Türkbay, HC Kuhlmann - Chaos: An Interdisciplinary …, 2020 - pubs.aip.org
Steady three-dimensional flows in lid-driven cavities are investigated numerically using a
high-order spectral-element solver for the incompressible Navier–Stokes equations. The …

Formation of dual vortex breakdown in a two-fluid confined flow

L Carrión, IV Naumov, BR Sharifullin, MA Herrada… - Physics of …, 2020 - pubs.aip.org
This experimental and numerical study discusses the formation of double vortex breakdown
in a swirling flow of two immiscible fluids where new circulation cells evolve in both fluids …