کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
671093 1459080 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The critical wall velocity for stabilization of plane Couette-Poiseuille flow of viscoelastic fluids
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
The critical wall velocity for stabilization of plane Couette-Poiseuille flow of viscoelastic fluids
چکیده انگلیسی
In this paper we show numerically that the plane Couette-Poiseuille flow of Oldroyd-B and modified FENE Chilcott-Rallison fluids is stabilized at a critical wall velocity approximately 0.7 times the maximal velocity of the plane Poiseuille flow, independent of the elastic parameters investigated. This value is surprisingly close to the Newtonian critical value. A long wavelength analysis, following the distinguished limit method of Cowley and Smith [8], confirms that at leading order this stabilizing wall velocity is indeed independent of the elasticity number of the flow.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Newtonian Fluid Mechanics - Volume 165, Issues 7–8, April 2010, Pages 441-447
نویسندگان
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