کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
976580 1480122 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
“Buoyancy” in granular medium: How deep can an object sink in sand?
ترجمه فارسی عنوان
"شناور" در محیط گرانول: یک نزول شی در شن و ماسه چه عمقی می تواند داشته باشد؟
کلمات کلیدی
رانش گرانول؛ عمق غرق شدن ؛ شن
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
چکیده انگلیسی


• Buoyancy effect in granular systems.
• Measured the sinking depth (SD) of the ball into granules of different sizes.
• SD is very sensitive to the size of granular system.
• Ratio does not depend on the density of the ball and the volume fraction of granules.
• Empirical formula of SD is obtained.

The behavior of granular matter is different from either fluids or solids. One may not be able to answer even a naive question such as how deep an object can sink in sand. Answers to the depth of footprints on sand beach and its dependence on grain size have never been seriously studied before, and may deserve a closer look and better understanding. Laying a ball of fixed size onto granules, we have measured the sinking depth (SDSD) of the ball into granules of different sizes and studied the dependence of SDSD on the sizes of the ball and granules. We find that the SDSD is very sensitive to the size of granules and the variation of SDSD on granule size is not monotonic. The maximum SDSD occurs at r≈120R, where rr and RR are the radii of granules and the ball, respectively. This ratio does not depend on the density of the ball and the volume fraction of granules. An empirical formula of SDSD on densities and sizes of the ball and granules are obtained based on the experimental results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 451, 1 June 2016, Pages 560–564
نویسندگان
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