کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
473757 698812 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An asymptotic investigation into the stabilization effect of suction in the rotating-disk boundary layer flow
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر علوم کامپیوتر (عمومی)
پیش نمایش صفحه اول مقاله
An asymptotic investigation into the stabilization effect of suction in the rotating-disk boundary layer flow
چکیده انگلیسی

The suction effects in the three-dimensional boundary layer flow due to a rotating disk are analyzed from the linear stability point of view making use of the asymptotic structure of the suction mean velocity profiles of the boundary layer. The primary interest of the current work is in giving an explanation to the well-known stabilization influence of the suction from an easy to implement asymptotic means. As a consequence of the analysis, the shapes of the linear amplitude functions are derived analytically. There also results a dispersion relation for the eigenvalues existing in the limit of large suction. A comparison is then made between the perturbations obtained from the present work and also from the direct numerical solution of the linear stability equations. The asymptotic approach pursued provides a good indication as to why the large suction in the specific three-dimensional boundary layer should act in favor of the stabilization of the flow by strongly damping the external disturbances received into the suction boundary layer.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Mathematics with Applications - Volume 53, Issue 5, March 2007, Pages 750–759
نویسندگان
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