کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
655500 1457635 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Large eddy simulation of multiple impinging jets in hexagonal configuration – Mean flow characteristics
ترجمه فارسی عنوان
شبیه سازی گردشی بزرگ از جت های مجهز چندگانه در پیکربندی شش ضلعی؟ میانگین ویژگی های جریان
کلمات کلیدی
شبیه سازی گردابی بزرگ، جت های مخرب چندگانه، اعتبار سنجی، میانگین ویژگی های جریان
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی


• LES was conducted to obtain the mean flow characteristics of multiple impinging jets.
• Results were validated on hexagonal configuration benchmark.
• Good agreement with experimental data (key flow phenomena are predicted correctly).
• Minor discrepancies due to the modelling of inlet conditions were identified.

The highly turbulent flow of 13 air impinging jets in hexagonal arrangement is analyzed numerically by the means of Large Eddy Simulation (LES). All important flow phenomena, i.e. the formation of the fountain flow as well as the negative production of normal stresses near target wall are successfully predicted by the simulation. The mean velocity field and turbulent stresses are validated against existing experimental data. Numerical results show good agreement with experiment. Minor discrepancies can be attributed to the inaccurate modeling of the inlet boundary conditions. A thorough comparison between the simulation results and experimental data is presented and discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Fluid Flow - Volume 46, April 2014, Pages 147–157
نویسندگان
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