Now showing items 1-20 of 129

    • Computation of Helicopter Flow with Sand Pick-up 

      Wenren, Yonghu; John, Steinhoff; Subhashini, Chitta; Jan, Walter (AIAA, 2006-01)
      Accurate prediction of rotorcraft flow fields for brownout, computed using an incompressible flow solver SAGE with Vorticity Confinement, is demonstrated in our fluid dynamics video. The main problem addressed here is the ...
    • Computation of Helicopter Flow with Sand Pick-up 

      Wenren, Yonghu; Chitta, Subhashini; Steinhoff, John; Walter, Jan (AIAA, 2006-01)
      Accurate prediction of rotorcraft flow fields for brownout, computed using an incompressible flow solver SAGE with Vorticity Confinement, is demonstrated in our fluid dynamics video. The main problem addressed here is the ...
    • Computation of Helicopter Flow with Sand Pick-up 

      Wenren, Yonghu; Chitta, Subhashini; Steinhoff, John (AIAA, 2006-01)
      Accurate prediction of rotorcraft flow fields for brownout, computed using an incompressible flow solver SAGE with Vorticity Confinement, is demonstrated in our fluid dynamics video. The main problem addressed here is the ...
    • Animations from PDF Model Calculations of a Lifted Hydrogen Flame 

      Wang, Haifeng; Pope, Stephen B. (2007-09-03)
    • Animations of hydrogen lifted flames: particles from the fuel stream 

      Wang, Haifeng; Pope, Stephen B. (2007-09-06)
      The three MPEG files are animations of particle trajectories in a hydrogen lifted flame. The particles originate from the fuel stream.
    • Animation of a scatter plot in a lifted hydrogen jet flame accoring to the modified Curl mixing model 

      Wang, Haifeng; Pope, Stephen B. (2007-11-01)
      Animation of the scatter plot of temperature against mixture fraction for a lifted hydrogen jet flame. The calculations are based on the joint PDF method using the modifed Curl mixing model.
    • Impact of a steel ball on soft sand 

      Mikkelsen, Rene; Bergmann, Raymond; van der Meer, Devaraj; Versluis, Michel; Lohse, Detlef (2007-11-01)
      The movies shows the impact of a steel ball on soft granular matter.
    • On the sound of snapping shrimp 

      Versluis, Michel; Schmitz, Barbara; von der Heydt, Anna; Lohse, Detlef (2007-12-13)
      Snapping shrimp produce a snapping sound by an extremely rapid closure of their snapper claw. Our high speed imaging of the claw closure has revealed that the sound is generated by the collapse of a cavitation bubble formed ...
    • Spilling Breakers and Surfactants 

      Liu, Xinan; Diorio, James; Duncan, James (2007-12-21)
      Mechanically generated weakly breaking waves were studied experimentally in clean water and water with a soluble surfactant whose bulk concentration was above the Critical Micelle Concentration (CMC). For the surfactant ...
    • Self-Induced Vibration in Whirlpool 

      Shakerin, Said; Sweet, Jonathan (2008-01-22)
      This short video shows a curious cyclic phenomenon that occurs when a PVC pipe interacts with an air-core vortex, created in a cylinder with a tangential inflow and central outflow at the bottom.
    • Spilling Breakers and Surfactants 

      Liu, Xinan; Diorio, James; Duncan, James (2008-06-10)
      Mechanically generated weakly breaking waves were studied experimentally in clean water and in water with a soluble surfactant whose bulk concentration is above the Critical Micelle Concentration (CMC). For the surfactant ...
    • Collision of a sphere onto a wall coated with a liquid film 

      Ardekani, Arezoo; Rangel, Roger (2008-09-22)
      Particle-particle and particle-wall collisions occur in many natural and industrial applications such as sedimentation, agglomeration, and granular flows. To accurately predict the behavior of particulate flows, fundamental ...
    • piercing the veil 

      Dorbolo, Stephane; Vandewalle, Nicolas; Brunet, Philippe (2008-09-23)
      A vertical oil curtain is excited by an orthogonal flow of air. In a first step, the flow is asymmetrical and the air is injected at 10 Hz. Varying the air flow strength and the oil flow-rate, several regimes are ...
    • Optically induced electrokinetic patterning and manipulation of particles 

      Williams, Stuart J.; Kumar, Aloke; Wereley, Steven T. (2008-09-24)
      This fluid dynamics video will illustrate an optically induced electrokinetic technique for non-invasive particle manipulation on the surface of a parallel-plate gold/indium tin oxide (ITO) electrode that is illuminated ...
    • Whipping Instabilities in Electrified Liquid Jets 

      Marin, Alvaro G.; Riboux, Guillaume; Loscertales, Ignacio G.; Barrero, Antonio (2008-10-01)
      A liquid jet may develop different types of instabilities, like the so-called Rayleigh-Plateau instability, which breaks the jet into droplets. However, another type of instabilities may appear when we electrify a liquid ...
    • Fluid Flower 

      Lee, Minhee; Kim, Ho-Young (2008-10-06)
      In microfluidic technologies, direct patterning of liquid without resorting to micromachined solid structures has various advantages including reduction of the frictional dissipation and the fabrication cost. This fluid ...
    • The mayonnaise droplet 

      Terwagne, Denis; Mack, Nicolas; Dorbolo, Stephane; Gilet, Tristan; Vandewalle, Nicolas (2008-10-06)
      A droplet made with two immiscible components is laid on a high viscous bath that is vertically shaken according to a sinusoidal motion. The droplet is composed by soapy water and oil. At the beginning, the water is ...
    • The amazing bouncing droplet 

      Terwagne, Denis; Dorbolo, Stephane; Vandewalle, Nicolas; Gilet, Tristan (2008-10-06)
      When a low viscosity oil droplet is laid on the surface of a high viscosity oil liquid, it stays at rest for a moment before coalescencing. The coalescence can be delayed and sometimes inhibited by injecting fresh air under ...
    • Fluid Dynamics Video of flow around a seismic streamer 

      Elboth, Thomas; Lilja, Didrik; Warzawski, Jakub; Steinsbo, Terje (2008-10-06)
      This video shows a high Re-number unsteady turbulent boundary layer surrounding a long cylinder that is towed through the ocean. Previous work on flow around long cylinders have often focused on the case where the ...
    • Tip streaming from drops flowing in a spiral microchannel 

      Molesin, Simon; Baroud, Charles (2008-10-08)
      This fluid dynamics video shows drops of water being transported by a mean flow of oil, in a microchannel shaped as a logarithmic spiral. The channel shape means that the drops are submitted to an increasing shear ...