کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
652322 885013 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the flow instabilities in the end-wall region of a surface mounted obstacle
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
On the flow instabilities in the end-wall region of a surface mounted obstacle
چکیده انگلیسی

Visualization of flow in the around a surface mounted obstacle revealed that the pressure gradients imposed on the boundary layer amplified the formation of turbulent spots in the end-wall region. It was observed that the juncture vortices exhibited Λ waveform instability even during the stretching phase that was followed by a rapid amplification and formation of a turbulent spot. The turbulent spot spread laterally as it convected past the attachment and corner region of the end-wall flow. At the Reynolds number used in this investigation the instabilities were always initiated in the region where the primary singular point is located.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Thermal and Fluid Science - Volume 33, Issue 2, January 2009, Pages 380–385
نویسندگان
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