The Generation, Evolution and Decay of Pure Quantum Turbulence: A Full Biot-Savart Simulation

TL;DR

This paper presents comprehensive computer simulations of quantum turbulence in superfluid 3He-B, capturing its entire lifecycle and aligning closely with experimental observations to deepen understanding of turbulence mechanisms.

Contribution

It introduces a full Biot-Savart simulation approach to model the generation, evolution, and decay of quantum turbulence at zero temperature.

Findings

Simulation results match experimental data closely

Identifies key mechanisms in turbulence decay

Provides detailed visualization of turbulence dynamics

Abstract

A zero temperature superfluid is arguably the simplest system in which to study complex fluid dynamics, such as turbulence. We describe computer simulations of such turbulence and compare the results directly with recent experiments in superfluid 3He-B. We are able to follow the entire process of the production, evolution, and decay of quantum turbulence. We find striking agreement between simulation and experiment and gain new insights into the mechanisms involved.