کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
469442 698318 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A lattice Boltzmann based implicit immersed boundary method for fluid–structure interaction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر علوم کامپیوتر (عمومی)
پیش نمایش صفحه اول مقاله
A lattice Boltzmann based implicit immersed boundary method for fluid–structure interaction
چکیده انگلیسی

The immersed boundary method is a practical and effective method for fluid–structure interaction problems. It has been applied to a variety of problems. Most of the time-stepping schemes used in the method are explicit, which suffer a drawback in terms of stability and restriction on the time step. We propose a lattice Boltzmann based implicit immersed boundary method where the immersed boundary force is computed at the unknown configuration of the structure at each time step. The fully nonlinear algebraic system resulting from discretizations is solved by an Inexact Newton–Krylov method in a Jacobian-free manner. The test problem of a flexible filament in a flowing viscous fluid is considered. Numerical results show that the proposed implicit immersed boundary method is much more stable with larger time steps and significantly outperforms the explicit version in terms of computational cost.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Mathematics with Applications - Volume 59, Issue 1, January 2010, Pages 185–193
نویسندگان
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