Vorticity from irrotationally forced flow
نویسندگان
چکیده
منابع مشابه
How can vorticity be produced in irrotationally forced flows?
A spherical hydrodynamical expansion flow can be described as the gradient of a potential. In that case no vorticity should be produced, but several additional mechanisms can drive its production. Here we analyze the effects of baroclinicity, rotation and shear in the case of a viscous fluid. Those flows resemble what happens in the interstellar medium. In fact in this astrophysical environment...
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Y. D. Cui, J. M. Lopez, T. T. Lim, and F. Marques Temasek Laboratories, National University of Singapore, Singapore 119260, Singapore School of Mathematical and Statistical Sciences, Arizona State University, Tempe, Arizona 85287, USA Department of Mechanical Engineering, National University of Singapore, Singapore 119260, Singapore Departament de Física Aplicada, Universitat Politècnica de Cat...
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Theoretical and numerical analysis is performed for an inviscid axisymmetric vortical bathtubtype flow. The level of vorticity is kept high so that the image of the flow on the radial-axial plane (r-z plane) is not potential. The most significant findings are: 1) the region of validity of the strong vortex approximation is separated from the drain by a buffer region; 2) the powerlaw asymptote o...
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ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2010
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921311017868