کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1897197 1534068 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Is the Reynolds number infinite in superfluid turbulence?
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Is the Reynolds number infinite in superfluid turbulence?
چکیده انگلیسی
Superfluidity, the hallmark property of quantum fluids (e.g. liquid helium, atomic Bose-Einstein condensates, neutron stars), is characterised by the absence of viscosity. At temperatures which are low enough that thermal excitations can be neglected, liquid helium can be considered a perfect superfluid, and one would expect that superfluid turbulence were dissipationless because the Reynolds number is infinite. On the contrary, experiments show that helium turbulence decays, even at these low temperatures. The solution of this apparent puzzle lies in subtle but crucial differences between a superfluid and a classical Euler fluid.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica D: Nonlinear Phenomena - Volume 237, Issues 14–17, 15 August 2008, Pages 2195-2202
نویسندگان
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