Counterflow energy spectra of quantum turbulence at finite temperatures

V. A. Andryushchenko, L. P. Kondaurova

Результат исследования: Научные публикации в периодических изданияхстатья

Аннотация

The spectrum of the energy generated by the vortex tangle in counterflow of normal and superfluid components at different temperatures was obtained. The counterflow magnitude was varied from 0.3 cm/s to 1.2 cm/s and the temperature was varied from 1.3 K to 1.9 K. It was shown that E(k) ∼ k at intervortex scale, where 1.3 < α < 1.4 depending on the temperature. At larger scales E(k) ∼ k-1. It was obtained that change of the kinetic energy per unit mass is proportional to the cube of the counterflow of normal and superfluid components at Gorter-Mellink mode, thus the energy dissipation originate from friction between normal component of helium and vortex tangle.

Язык оригиналаанглийский
Страницы (с-по)245-252
Число страниц8
ЖурналFizika Nizkikh Temperatur
Том43
Номер выпуска2
СостояниеОпубликовано - 1 фев 2017

Fingerprint Подробные сведения о темах исследования «Counterflow energy spectra of quantum turbulence at finite temperatures». Вместе они формируют уникальный семантический отпечаток (fingerprint).

Цитировать