JAPANESE

Research Topics


  1. Turbulent Structure and Heat/Mass Transfer across the Gas-Liquid Interface, and Climate Prediction
  2. Cloud Formation, Growth and Motion
  3. Momentum, Mass and Heat Transfer in Turbulent Flows
  4. Chemical Reaction in Turbulent Flows
  5. Particle (Bubble and Droplet) Motion in Turbulent Flows

1. Turbulent Structure and Heat/Mass Transfer across the Gas-Liquid Interface, and Climate Prediction

Long-fetch wind-wave tank High-speed wind-wave tank
Play movie
Long-fetdh wind-wave tank (left) and high-speed wind-wave tank (right)
IR image of wind wave interface IR image of wind wave interface
Play movie
IR images of wind-wave interface with heat transfer;
low wind speed (left) and high wind speed (right)
PDA measurement of spray droplets
Play movie
PDA measurement of spray droplts
above breaking waves
DNS of wind wave: gas-liqud interface DNS of wind-wave: turbulent eddies in the liquid phase
Play movie
Wind-driven gas-liquid two-phase flow (DNS); the gas-liquid interface (left)
and the turbulent eddies in the liquid phase (right)
Global estimation of CO2 flux across air-water interface by rainfall
Play movie
Global estimation of CO2 flux across air-water interface by rainfall

2. Cloud Formation, Growth and Motion

Collision growth of cloud droplets (DNS)
Play movie
Collision growth of cloud droplets (DNS)

3. Momentum, Mass and Heat Transfer in Turbulent Flows

Mixing layer flows (LES) Mixing layer flows (experiment)
Play movie
Mixing layer flows (LES (left) and experiment(right))
Turbulent mixing in neutral stratification Turbulent mixing in stable stratification
Effect of density stratification on turbulent mixing (neutral (left) and stable (right) stratification)

4. Chemical Reaction in Turbulent Flows

Turbulent mixing with reaction Product
Experiments of mixing layer flow with chemical reaction (reactant (left) and product (right))
Reactant in grid-generated turbulence
Play movie
Visualizatin of reactant in grid-generated turbulence with chemical reaction
Reactant concentration n mixng layer with chemical raction (LES) Product concentration n mixng layer with chemical raction (LES)
Play movie
LES of mixing layer flow with chemical reaction (reactant (left) and product (right))
Spray combstuion (LES)
Play movie
Spray combustion (LES)

5. Particle (Bubble and Droplet) Motion in Turbulent Flows

Outer flow of a droplet (DNS) Inner flow of a droplet (DNS)
Outer(left) and inner(right) flows of a droplet (DNS)
Scalar in droplets Re_p=005 (DNS) Scalar in droplets Re_p=050 (DNS)
Play movie
DNS of scalar transport in a droplet; Rep=5 (left) and 50 (right)

Home | Introduction | Members | Researches | Alumni Reunion | Update History |