Developing Lengths in Woven and Helical Tubes with Dean Vortices Flows
نویسندگان
چکیده
منابع مشابه
Helical tubes in crowded environments.
When placed in a crowded environment, a semiflexible tube is forced to fold so as to make a more compact shape. One compact shape that often arises in nature is the tight helix, especially when the tube thickness is of comparable size to the tube length. In this paper we use an excluded volume effect to model the effects of crowding. This gives us a measure of compactness for configurations of ...
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Helicity is a quadratic invariant of the Euler equation in three dimensions. As the energy, when present helicity cascades to smaller scales where it dissipates. However, the role played by helicity in the energy cascade is still unclear. In non-helical flows, the velocity and the vorticity tend to align locally creating patches with opposite signs of helicity. Also in helical flows helicity ch...
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ژورنال
عنوان ژورنال: Engineering Applications of Computational Fluid Mechanics
سال: 2009
ISSN: 1994-2060,1997-003X
DOI: 10.1080/19942060.2009.11015259