RESEARCH

Nano Bubbles & Droplets

纳米气泡&纳米液滴&分子动力学模拟

  • Bulk nanobubbles: nanoscale gaseous entities suspended in an aqueous medium

  • Nanodroplets: a surfactant-free microemulsion (SFME) created from a ternary mixture of trans-anethole, ethanol and water

  • Methods: Experimental measurements (NTA, DLS); theoretical modeling; Molecular dynamics simulation

  • Research key points: Physical mechanisms for the stabilization of bulk nanobubbles and nanodroplets

Drops

液滴

Leidenfrost droplets:

  • Mechanisms of the final fate of Leidenfrost droplets

  • Explosive boiling phenomena of multi-component Leidenfrost droplets

  • Critical temperature of the Leidenfrost stage and how substrate properties impact this temperature

Droplet evaporation: The heat and mass transfer characteristics of acoustically levitated multicomponent droplets

Icing

结冰

Icing & turbulence

  • Unveiling the crucial role of water density anomaly in the dynamics of fresh water icing

  • Highlighting the essential contribution of brine convection through the mushy ice to the dynamics of sea water icing

Icing & droplet

  • Elucidating the impact of liquid contents on the dynamics of droplet icing, such as salinity, volatility, and solubility

  • Uncovering the influence of ambient conditions on the dynamics of droplet icing, such as gravity, frost, and environmental medium

Supergravitational Turbulence

超重力湍流

Towards Ultimate Regime

  • Enhancing the buoyancy-driven thermal convection to the ultimate regime by strong centrifugal acceleration

  • Discovering a new scaling law for heat transfer giving direct experimental evidence for the existence of the "ultimate regime"

Complex Mechanisms in Rotating Convection System

  • Revealing the effect of Coriolis force and the mechanism of the Zonal flow under strong rotation

  • Working on the coupling effect of buoyancy and shear by differential rotating speed between inner and outer boundaries

Turbulent Emulsion

液液两相湍流

Droplet statistics

  • Underlying mechanism of droplet breakup in turbulent flow

  • Droplet size distribution and the dependence on the controllable parameters

  • Mechanism of catastrophic phase inversion

Turbulence modulation

  • Mechanism of drag modulation by droplets and applications

  • Turbulent boundary layer in dense suspension of droplets

  • Energy transfer among different scales in droplet-laden turbulence

  • Coupling between the droplets and continuous phase

Particles in Turbulence

湍流颗粒耦合

We focus on distinct particle-fluid interactions within turbulence and corresponding techniques

  • The dynamics of single or multiple particles, either passive or active particle

  • Turbulence modulation induced by dispersed particles, spanning from finite-size particles to point-particles

  • High-resolution experimental techniques capable of performing volumetric measurements for both inertial particles and tracers

  • In-house numerical codes featuring of fully resolving both turbulence and particle dynamics