کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
758351 896422 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chaotic convection in a ferrofluid
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Chaotic convection in a ferrofluid
چکیده انگلیسی

We report theoretical and numerical results on thermally driven convection of a magnetic suspension. The magnetic properties can be modeled as those of electrically non-conducting superparamagnets. We perform a truncated Galerkin expansion finding that the system can be described by a generalized Lorenz model. We characterize the dynamical system using different criteria such as Fourier power spectrum, bifurcation diagrams, and Lyapunov exponents. We find that the system exhibits multiple transitions between regular and chaotic behaviors in the parameter space. Transient chaotic behavior in time can be found slightly below their linear instability threshold of the stationary state.


► Ferrofluids.
► Thermal convection.
► Generalized Lorenz System.
► Lyapunov Exponent.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Communications in Nonlinear Science and Numerical Simulation - Volume 18, Issue 9, September 2013, Pages 2436–2447
نویسندگان
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