کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
801931 1467699 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Creeping flow of viscoplastic materials through a planar expansion followed by a contraction
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Creeping flow of viscoplastic materials through a planar expansion followed by a contraction
چکیده انگلیسی

In this work, the creeping flow of a viscoplastic fluid through a planar channel with an expansion followed by a contraction is analyzed numerically. The solution of the conservation equations of mass and momentum is obtained via the finite volume method. In order to model the non-Newtonian behavior of the fluid, it was used the generalized Newtonian fluid constitutive equation. The viscosity function was the one proposed by Souza Mendes and Dutra [Souza Mendes, P.R., Dutra, E.S.S., 2004. Viscosity function for yield-stress liquids. Appl. Rheol. 14, 296–302]. The yielded and unyielded regions are obtained for several combinations of rheological parameters. The influence of these parameters on pressure drop through the cavity is also obtained and analyzed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanics Research Communications - Volume 34, Issues 5–6, July–September 2007, Pages 423–431
نویسندگان
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