کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
660348 1458102 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modeling of natural convection with Smoothed Particle Hydrodynamics: Non-Boussinesq formulation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Modeling of natural convection with Smoothed Particle Hydrodynamics: Non-Boussinesq formulation
چکیده انگلیسی

A new variant of the Smoothed Particle Hydrodynamics (SPH) simulations of the natural convection phenomena is introduced. In many situations, where the density may vary significantly under the influence of temperature non-uniformities, the classical Boussinesq approximation fails. To characterize such situations, the Gay-Lussac dimensionless number is useful as a measure of density variations in non-isothermal flows. The novel points of the proposed modeling beyond the Boussinesq regime include the proper implementation of the buoyancy force and a smart connection between particle volume and incompressibility constraint. To examine the correctness of the new approach, numerical results are confronted with available reference data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 23–24, November 2011, Pages 4807–4816
نویسندگان
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