Simulation of Acoustic Black Hole in a Laval Nozzle

TL;DR

This paper presents a numerical simulation of fluid flows in a Laval nozzle to observe acoustic black holes and estimate their Hawking temperature, providing insights into experimental data analysis.

Contribution

It introduces a realistic simulation approach to study acoustic black holes and their Hawking radiation in laboratory conditions.

Findings

Hawking temperature of the acoustic black hole was estimated from simulation data.

Clarified key points in analyzing experimental data related to acoustic black holes.

Demonstrated formation of acoustic black holes in a Laval nozzle through numerical modeling.

Abstract

A numerical simulation of fluid flows in a Laval nozzle is performed to observe formations of acoustic black holes and the classical counterpart to Hawking radiation under a realistic setting of the laboratory experiment. We determined the Hawking temperature of the acoustic black hole from obtained numerical data. Some noteworthy points in analyzing the experimental data are clarified through our numerical simulation.