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Energy spectrum of superfluid turbulence made by a quantized vortex tangle without the normal fluid

机译:没有常规流体的量化涡流缠结产生的超流湍流能谱

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摘要

The energy spectrum of the superfluid turbulence without the normal fluid is studied numerically under the vortex filament model subject to the full nonlocal Biot-Savart law. The almost isotropic and homogeneous vortex tangle is prepared by starting from the Taylor-Green vortex. The vortex tangle freely decaying shows the energy spectrum for k < 2pi/l very similar to the Kolmogorov's -5/3 law, where k is the wave number of the Fourier component of the velocity field and l is the average intervortex spacing. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 6]
机译:在服从完全非局部Biot-Savart律的涡旋丝模型下,对没有正常流体的超流体湍流的能谱进行了数值研究。从泰勒-格林涡旋开始,制备几乎各向同性且均匀的涡旋缠结。涡旋缠结的自由衰减显示了k <2pi / l的能谱,非常类似于Kolmogorov的-5/3定律,其中k是速度场的傅立叶分量的波数,l是平均涡旋间距。 (C)2002 Elsevier Science B.V.保留所有权利。 [参考:6]

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