Now showing items 31-40 of 129

    • Cellular Blood Flow 

      Clausen, Jonathan; Reasor, Daniel Jr; Aidun, Cyrus (2009-10-16)
      The fluid dynamics video that is presented here outlines recent advances in the simulation of multiphase cellular blood flow through the direct numerical simulations of deformable red blood cells (RBCs) demonstrated through ...
    • Landing on the Moon Cratering from a Jet 

      Clark, Abe; Behringer, R.P.; Brandenburg, John (2009-10-16)
      This project characterizes crater formation in a granular material by a jet of gas impinging on a granular material, such as a retro-rocket landing on the moon. We have constructed a 2D model of a planetary surface, which ...
    • Spontaneous Jumping of Coalescing Drops on a Superhydrophobic Surface 

      Boreyko, Jonathan; Chen, Chuan-Hua (2009-10-16)
      When micrometric drops coalesce in-plane on a superhydrophobic surface, a surprising out-of-plane jumping motion was observed. Such jumping motion triggered by drop coalescence was reproduced on a Leidenfrost surface. ...
    • Spreading Water on Teflon: Marangoni Influences and the Elimination of the Ring Stain 

      Rendall, Clint; Majumder, Mainak; Pasquali, Matteo (2009-10-16)
      In this video, a new technique of spreading water on the hydrophobic surface Teflon® is presented. Under ambient conditions, a small droplet of water placed on a Teflon® surface will form a bead with a very high contact ...
    • Ripples and Shear Bands in Plowed Granular Media 

      Gravish, Nick; Umbanhowar, Paul; Goldman, Daniel I. (2009-10-16)
      Monodisperse packings of dry, air-fluidized granular media typically exist between volume fractions from $\Phi$= 0.585 to 0.64. We demonstrate that the dynamics of granular drag are sensitive to volume fraction $\Phi$ and ...
    • Fluid dynamics video of domains with spiral dislocations formed in the wake of an enslaved phase-separation front 

      Foard, Eric M.; Wagner, Alexander J. (2009-10-16)
      Enslaved phase-separation fronts that move with a speed just smaller than that of a free front will leave in their wake a morphology of alternating domains that are roughly aligned with the front. However, these ...
    • Mixing within patterned vortex core 

      Ait Abderrahmane, Hamid; Fayed, Mohamed; Mandour, Amr; Kadem, Lyes; Vatistas, Georgios H.; Ng, Hoi Dick (2009-10-16)
      The video shows the flow dynamics within inner and outer regions of a vortex-core. The observed phenomena mimic a transport process occurring within the Antarctic vortex. The video shows two distinct regions: a strongly ...
    • Instability of liquid jet penetrated into stream in channel 

      Oka, Naoto (2009-10-16)
      Penetration process and an instability on a liquid jet impinging to a stream of the same fluid in a channel is focused. The jet penetrated into the stream is wrapped by entrained air, and coalesces with the stream when ...
    • Turbulent flow over a house in a simulated hurricane boundary layer 

      Taylor, Zachary; Morrison, Murray; Gurka, Roi; Kopp, Gregory (2009-10-16)
      Every year hurricanes and other extreme wind storms cause billions of dollars in damage worldwide. For residential construction, such failures are usually associated with roofs, which see the largest aerodynamic loading. ...
    • Shape oscillation of bubbles in the acoustic field 

      Matsumoto, Keishi (2009-10-16)
      The authors focus on dynamics of multiple air bubbles exposed to ultrasonic wave while ascending in water. The bubbles are injected into the pool filled with water from a vertical capillary tube, and then the ultrasonic ...