کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
672443 887504 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Direct numerical simulation of particle–fluid systems by combining time-driven hard-sphere model and lattice Boltzmann method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Direct numerical simulation of particle–fluid systems by combining time-driven hard-sphere model and lattice Boltzmann method
چکیده انگلیسی

A coupled numerical method for the direct numerical simulation of particle–fluid systems is formulated and implemented, resolving an order of magnitude smaller than particle size. The particle motion is described by the time-driven hard-sphere model, while the hydrodynamic equations governing fluid flow are solved by the lattice Boltzmann method (LBM). Particle–fluid coupling is realized by an immersed boundary method (IBM), which considers the effect of boundary on surrounding fluid as a restoring force added to the governing equations of the fluid. The proposed scheme is validated in the classical flow-around-cylinder simulations, and preliminary application of this scheme to fluidization is reported, demonstrating it to be a promising computational strategy for better understanding complex behavior in particle–fluid systems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Particuology - Volume 8, Issue 4, August 2010, Pages 379–382
نویسندگان
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