کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4622566 1339501 2007 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A similarity theory of approximate deconvolution models of turbulence
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات آنالیز ریاضی
پیش نمایش صفحه اول مقاله
A similarity theory of approximate deconvolution models of turbulence
چکیده انگلیسی
We apply the phenomenology of homogeneous, isotropic turbulence to the family of approximate deconvolution models proposed by Stolz and Adams. In particular, we establish that the models themselves have an energy cascade with two asymptotically different inertial ranges. Delineation of these gives insight into the resolution requirements of using approximate deconvolution models. The approximate deconvolution model's energy balance contains both an enhanced energy dissipation and a modification to the model's kinetic energy. The modification of the model's kinetic energy induces a secondary energy cascade which accelerates scale truncation. The enhanced energy dissipation completes the scale truncation by reducing the model's micro-scale from the Kolmogorov micro-scale.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Mathematical Analysis and Applications - Volume 333, Issue 1, 1 September 2007, Pages 416-429
نویسندگان
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