کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8942095 1645058 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Explanation of differences in experimental and computational results for the preferential concentration of inertial particles
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Explanation of differences in experimental and computational results for the preferential concentration of inertial particles
چکیده انگلیسی
Using one-way coupled direct numerical simulations of inertial particles in homogeneous isotropic turbulence we investigate the non-linear dependence of local particle concentrations in particle clusters on the number density of particles used in the simulation per volume. We show that the Reynolds-number dependence of local concentrations in clusters can be predicted for sufficiently high Reynolds numbers by a scaling relation that depends on the average particle number density and the Kolmogorov length. Depending on the average particle number density and gravity, a maximum of preferential concentration does not necessarily occur at Stokes numbers around unity. This explains the differences observed between recent experimental and computational results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Fluids - Volume 173, 15 September 2018, Pages 37-41
نویسندگان
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