TURBULENCE & FLOW CTRL.
TURBULENCE & FLOW CTRL.
Various attempts have been made for the turbulence control for drag and flow-induced noise both in industries and academic institutes for the decades. However, as Richard Feynman described it as 'the most important unsolved problem of classical physics', turbulence is notorious for its complexity and irregularity, which has significantly hampered the application of a systematic and organized approach in flow control. We are conducting following researches to develop systematic and universal flow-control methodologies for attaining effective drag and noise reduction.
FLOW CONTROL
ACTIVE CONTROL
- Distributed forcing of flow over a circular cylinder and 2D bluff body
- Suboptimal control for reduction of drag on a sphere
- Controlling absolute instability in two-dimensional wake
- Distributed forcing of flow over a 3D model vehicle
- Linear proportional control for reduction of fluctuation on a sphere
PASSIVE CONTROL
- Micro cavity for skin-friction reduction
- Optimal riblet for skin-friction reduction
- Wake disrupter for 2D bluff body
- Dimples and roughness on a sphere
- Boat tail passive device for drag reduction on a 3D model vehicle
- Automatic Moving Deflector (AMD) for drag-reduction on a 3D model vehicle
- Small-tab like device for mixing enhancement in a backward-facing step flow
- Rotating sphere (golf ball)
