کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10392999 887130 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Size reduction methods for the implicit time-dependent simulation of micro-macro viscoelastic flow problems
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Size reduction methods for the implicit time-dependent simulation of micro-macro viscoelastic flow problems
چکیده انگلیسی
Traditionally, micro-macro simulations have been performed using simple explicit time-marching algorithms, which lack the desirable stability of implicit methods. In this study, a fully implicit time integration scheme is presented and implemented for the first time for the solution of time-dependent complex flows using the Brownian Configuration Fields approach. Special techniques need to be applied to deal with the very large size of the resulting linear systems. A novel size-reduction scheme is used, allowing an independent treatment for each molecular field and suited to parallel hardware architecture. To illustrate the method, a selected number of applications using linear spring chains are presented and the results are compared with their corresponding closed form constitutive equation. The excellent agreement between the results demonstrates the feasibility of the proposed approach.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Newtonian Fluid Mechanics - Volume 127, Issue 1, 10 April 2005, Pages 41-49
نویسندگان
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