کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1705317 1012429 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dynamical analysis of an anemoscope in the phase plane
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Dynamical analysis of an anemoscope in the phase plane
چکیده انگلیسی

We study the dynamical aspects of an anemoscope indicating a wind direction by constructing a model in the discrete view of fluid. Due to the non-linearity of the rotational equation, the geometrical method is applied for the qualitative analysis. For a given wind direction, there are two fixed points of the parallel and anti-parallel configurations. Near the anti-parallel configuration of the stable fixed point, the anemoscope performs a damped harmonic oscillation. It can be noteworthy that there is always the damping term for both the configurations even in the absence of the non-aerodynamic frictional force from, for example, the axis of rotation. The argument using the index of a closed curve in the phase portrait seems to support the non-existence of periodic solution.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 34, Issue 7, July 2010, Pages 1884–1891
نویسندگان
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