کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
472176 698694 2009 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A combined lattice BGK/level set method for immiscible two-phase flows
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر علوم کامپیوتر (عمومی)
پیش نمایش صفحه اول مقاله
A combined lattice BGK/level set method for immiscible two-phase flows
چکیده انگلیسی

We present a lattice Boltzmann method (LBM) for simulating immiscible multi-phase flows which is based on a coupling of LBM with the level set method. The computation of immiscible flows using the LBM with BGK collision operator is done separately in each of the fluid domains and coupled at the interface by an appropriate boundary condition. In this way we preserve sharp interfaces between different fluid phases. We apply a new interface condition that represents the fluid mechanical jump conditions at the interface in the kinetic LBM framework. The level set method is applied to compute the evolution of the interface between fluids. Numerical results demonstrate the applicability of the method even in the presence of large viscosity and density ratios.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Mathematics with Applications - Volume 58, Issue 5, September 2009, Pages 950–964
نویسندگان
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