کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
498138 862968 2013 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modified immersed finite element method for fully-coupled fluid–structure interactions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Modified immersed finite element method for fully-coupled fluid–structure interactions
چکیده انگلیسی

In this paper, we develop a “modified” immersed finite element method (mIFEM), a non-boundary-fitted numerical technique, to study fluid–structure interactions. Using this method, we can more precisely capture the solid dynamics by solving the solid governing equation instead of imposing it based on the fluid velocity field as in the original immersed finite element (IFEM). Using the IFEM may lead to severe solid mesh distortion because the solid deformation is been over-estimated, especially for high Reynolds number flows. In the mIFEM, the solid dynamics is solved using appropriate boundary conditions generated from the surrounding fluid, therefore produces more accurate and realistic coupled solutions. We show several 2-D and 3-D testing cases where the mIFEM has a noticeable advantage in handling complicated fluid–structure interactions when the solid behavior dominates the fluid flow.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 267, 1 December 2013, Pages 150–169
نویسندگان
, ,