کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
7060030 1458110 2011 5 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Double-diffusive penetrative convection simulated via internal heating in an anisotropic porous layer with throughflow
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Double-diffusive penetrative convection simulated via internal heating in an anisotropic porous layer with throughflow
چکیده انگلیسی
A model for double-diffusive convection in an anisotropic porous layer with a constant throughflow is explored, with penetrative convection being simulated via an internal heat source. Both linear instability and nonlinear stability analyses are performed to assess the suitability of linear theory to predict the destabilisation of the throughflow. It is shown that due to oscillatory instability modes, there are three distinct regions, where increasing the ascending throughflow from rest actually has a stabilising effect, before following the standard destabilisation and stabilisation pattern. This is a previously unobserved phenomenon. The agreement between the linear and nonlinear thresholds is substantial when a small descending throughflow is introduced, although this does deteriorate for ascending throughflow.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 7–8, March 2011, Pages 1622-1626
نویسندگان
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