کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1898087 1534070 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Complex flow morphologies in shock-accelerated gaseous flows
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Complex flow morphologies in shock-accelerated gaseous flows
چکیده انگلیسی

A Mach 1.2 planar shock wave impulsively and simultaneously accelerates a row of three heavy gas (SF6) cylinders surrounded by a lighter gas (air), producing pairs of vortex columns. The heavy gas cylinders (nozzle diameter DD) are initially equidistant in the spanwise direction (center to center spacing SS), with S/D=1.5S/D=1.5. The interaction of the vortex columns is investigated with planar laser-induced fluorescence (PLIF) in the plane normal to the axes of the cylinders. Several distinct post-shock morphologies are observed, apparently due to rather small variations of the initial conditions. We report the variation of the streamwise and spanwise growth rates of the integral scales for these flow morphologies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica D: Nonlinear Phenomena - Volume 235, Issues 1–2, November 2007, Pages 21–28
نویسندگان
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