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Spotlights

  • Vanishing Wave Beams — New laboratory experimental results have helped explain why internal wave beams are unlikely to survive reflection from the ocean surface. The results have been applied to the case of a vanishing wave beam at the Keana Ridge in the Hawaiian Islands. [read more "Vanishing Wave Beams"]
  • Sailing on Diffusion — How can an object be propelled without any moving parts? New experimental and numerical results show how energy can be extracted from molecular diffusion to produce spontaneous propulsion. These results have potential significance for environmental and biological transport. [read more "Sailing on Diffusion"]
  • Unsteady Separation — For over 100 years, the ability to monitor the location of separation in an unsteady fluid flow has remained elusive. We have provided the first experimental results that successfully demonstrate a new dynamical-systems based approach, which could ultimately have widespread impact on engineering applications. [read more "Unsteady Separation"]

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