کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
273490 505045 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of surface and bulk instabilities in MHD duct flow with imitation of insulator coating imperfections
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Study of surface and bulk instabilities in MHD duct flow with imitation of insulator coating imperfections
چکیده انگلیسی

MHD phenomena in a duct flow were studied experimentally by using copper electrodes inserted into the wall of a perfectly insulated duct. The electrodes were connected using a copper wire to imitate different insulator coating imperfection conditions. The experimental results show instabilities of electric potential at the wall (surface instabilities) as well as instabilities in the pressure and velocity (bulk instabilities). The instabilities are strongly dependent on the scale of the copper wire. Three different cases were studied (at the same flow regimes, but with different electrode connections), where the potential at the duct wall is smaller, equal to or higher than the product of duct diameter 2a0 and transverse magnetic field B0 and average velocity V0. MHD pressure drop ΔP also exhibits significant changes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 81, Issues 1–7, February 2006, Pages 491–497
نویسندگان
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