TY - JOUR

T1 - Quantum Vortex Tangle Generated by Thermal Activation in Superfluid Liquids

AU - Nemirovskii, S. K.

AU - Kondaurova, L. P.

AU - Smirnov, D. D.

N1 - The numerical simulation and partly analytical calculations were financially supported by the Russian Science Foundation (grant no. 23-22-00128).

PY - 2024/12

Y1 - 2024/12

N2 - The article presents the results of a numerical and analytical study of the development of a quantum vortex structure in superfluid helium under the influence of a random Langevin force that simulates thermal excitation. The study focuses on issues related to the density of the vortex tangle and distribution of vortex loops by their sizes, as well as the frequency of reconnections. The analytical part presents two methods to solve the problem: continuous and discrete. Numerical simulation is an important tool for solving the stochastic dynamics of quantum vortex filaments subjected to a random force, which is complex task. A comparison of the respective results is carried out.

AB - The article presents the results of a numerical and analytical study of the development of a quantum vortex structure in superfluid helium under the influence of a random Langevin force that simulates thermal excitation. The study focuses on issues related to the density of the vortex tangle and distribution of vortex loops by their sizes, as well as the frequency of reconnections. The analytical part presents two methods to solve the problem: continuous and discrete. Numerical simulation is an important tool for solving the stochastic dynamics of quantum vortex filaments subjected to a random force, which is complex task. A comparison of the respective results is carried out.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85217650458&origin=inward&txGid=9436134c563d48ac3b1f73eb2e22c98e

UR - https://www.elibrary.ru/item.asp?id=79720849

UR - https://www.mendeley.com/catalogue/09d4c7e7-dfc6-3666-8900-846c498db4f9/

U2 - 10.1134/S1810232824040088

DO - 10.1134/S1810232824040088

M3 - Article

VL - 33

SP - 767

EP - 778

JO - Journal of Engineering Thermophysics

JF - Journal of Engineering Thermophysics

SN - 1810-2328

IS - 4

M1 - 8

ER -