Particle-laden flows: Particle/turbulence interactions in gas-solid flows. Control of particle-laden flows. Turbulent flows: Structural identification and characterization in jets and boundary layers. Liquid-liquid flows: Pinch-off and reconnection in mixtures with surface tension. Microscale flows: Liquid-solid flow in MEMS, fluid/structure interactions in MEMS. Development of flow diagnostics: Velocimetry, concentration, and image analysis techniques in turbulent, multiphase, and multifluid flows.