کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1705797 1012441 2008 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stability study for the MHD problem in perforated and parallel walls
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Stability study for the MHD problem in perforated and parallel walls
چکیده انگلیسی

We have studied the stability of a conducting fluid when it is continuously injected or ejected through a pair of parallel porous walls and escapes in both directions along the channel. The flow forms a stagnation point at the center and the effluence is restricted by a magnetic field perpendicular to the walls. A theoretical analysis of the steady state solutions of the MHD equations in the incompressible case is given as a function of three parameters Re, Rm and MA (Re: Reynolds number, Rm: magnetic Reynolds number, MA: Alfvenic Mach number), for some asymptotic limits. In the case of suction, critical values of the parameters are found for which there are bifurcations in the system. Such bifurcations are pitchfork type. In the case of injection, the flux results always stable.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 32, Issue 6, June 2008, Pages 1003–1016
نویسندگان
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