کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
656242 1457680 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Behaviour of turbulence models near a turbulent/non-turbulent interface revisited
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Behaviour of turbulence models near a turbulent/non-turbulent interface revisited
چکیده انگلیسی

The behaviour of turbulence models near a turbulent/non-turbulent interface is investigated. The analysis holds as well for two-equation as for Reynolds stress turbulence models using Daly and Harlow diffusion model.The behaviour near the interface is shown not to be a power law, as usually considered, but a more complex parametric solution. Why previous works seemed to numerically confirm the power law solution is explained.Constraints for turbulence modelling, i.e., for ensuring that models have a good behaviour near a turbulent/non-turbulent interface so that the solution is not sensitive to small turbulence levels imposed in the irrotational flow, are drawn.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Fluid Flow - Volume 27, Issue 5, October 2006, Pages 831–837
نویسندگان
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