کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
671459 | 1459094 | 2008 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A finite difference technique for solving the Oldroyd-B model for 3D-unsteady free surface flows
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A finite difference technique for solving the Oldroyd-B model for 3D-unsteady free surface flows A finite difference technique for solving the Oldroyd-B model for 3D-unsteady free surface flows](/preview/png/671459.png)
چکیده انگلیسی
This work presents a numerical method for solving three-dimensional (3D) viscoelastic unsteady free surface flows governed by the Oldroyd-B constitutive equation. It is an extension of the two-dimensional (2D) technique introduced by Tomé et al. [M.F. Tomé, N. Mangiavacchi, J.A. Cuminato, A. Castelo, S. McKee, A numerical technique for solving unsteady viscoelastic free surface flows, J. Non-Newt. Fluid Mech. 106 (2002) 61-106]. The governing equations are solved by a finite difference method on a 3D-staggered grid. Marker particles are employed to describe the fluid providing both visualization and the location of the free surface. The numerical technique is validated by using an exact solution of the flow of an Oldroyd-B fluid inside a 3D-pipe. Numerical results include the simulation of the transient extrudate swell and jet buckling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Newtonian Fluid Mechanics - Volume 154, Issues 2â3, October 2008, Pages 179-206
Journal: Journal of Non-Newtonian Fluid Mechanics - Volume 154, Issues 2â3, October 2008, Pages 179-206
نویسندگان
M.F. Tomé, A. Castelo, V.G. Ferreira, S. McKee,