نتایج جستجو برای: swirling flow
تعداد نتایج: 482645 فیلتر نتایج به سال:
While the structure and dynamics of boundary layers on rigid no-slip walls in rotation dominated enclosed flows are still an area of active research, the interactions between rotating or swirling flows with a free surface have received comparatively less attention. For the most part, investigations in this area have been focused on clean free surfaces, which may be treated as stress-free. Howev...
A new type of mechanical aortic valve prosthesisTornado-compatible valve (TCV) is worked out basing on the principle of hydrodynamic compatibility with the swirling Tornado-like blood flow present in the heart cavities and main arteries. The design and profile of the TCV were calculated basing on the exact solution of the non stationary hydrodynamic equations for the class of self organizing To...
An experimental study of a turbulent von Kármán flow in a cylinder is presented. The mean flow is stationary up to a Reynolds number Re=10(4) where a bifurcation takes place. The new regime breaks some symmetries of the problem and becomes time dependent because of equatorial vortices moving with a precession movement. In the exact counterrotating case, a bistable regime appears and spontaneous...
An in-line oil-water separator has been designed and is investigated for singleand two-phase flow. Numerical single-phase flow results show an annular reversed flow region. This flow pattern agrees qualitatively with results from measurements. In the two-phase flow simulations two different drag laws have been used to model the interaction between the phases. The velocity field of the singleand...
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