کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
759725 896489 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A numerical simulation of flow between two rotating coaxial frustum cones
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
A numerical simulation of flow between two rotating coaxial frustum cones
چکیده انگلیسی

The behavior of flow between two coaxial frustum cones, with the inner one rotating and the outer stationary, is studied in this paper. It is found that the fluid at the outlet does not flow out directly, but flows up till a certain height. This reflux generates a vortex area with a quite large velocity and pressure magnitude. This reflux area, between Z/H = 0.05 and 0.30, has the trend to move up with increasing Reynolds number Re. The velocity magnitude is linear in the radial direction if the Re is small. This linear relation converts to quasi-quadratic function as the Re increasing. If the frustum cone inclination is small, the flow will tend to be unstable with a quite large velocity and pressure magnitude. Finally, a comparison is made with Taylor–Couette flow.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Communications in Nonlinear Science and Numerical Simulation - Volume 14, Issue 6, June 2009, Pages 2670–2676
نویسندگان
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