کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
978071 933245 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Instabilities developed in stratified flows over pronounced obstacles
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Instabilities developed in stratified flows over pronounced obstacles
چکیده انگلیسی

In the present work we study numerical and experimentally the flow of a two-layer stratified fluid over a topographic obstacle. The problem reflects a wide number of oceanographic and meteorological situations, where the stratification plays an important role. We identify the different instabilities developed by studying the pycnocline deformation due to a pronounced obstacle. The numerical simulations were made using the model caffa3D.MB which works with a numerical model of Navier–Stokes equations with finite volume elements in curvilinear meshes. The experimental results are contrasted with numerical simulations. Linear stability analysis predictions are checked with particle image velocimetry (PIV) measurements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 386, Issue 2, 15 December 2007, Pages 681–685
نویسندگان
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