Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 25, 2023 - October 27, 2023
This study presents the numerical analysis of a standing-wave thermoacoustic engine using the general-purpose simulation software COMSOL Multiphysics®. The thermoacoustic phenomena arise from thermal interactions between acoustic waves and solid boundaries of narrow flow channels with temperature gradients. The thermoacoustic technology has been the focus of numerous research studies during the past few decades because of its simplicity and potential use in renewable energy systems. The Computational fluid dynamics (CFD) simulations play a critical role in the numerical modeling of thermoacoustic phenomena, but the basic problem concerning a CFD simulation of a whole system is the computational cost. In this paper, CFD and thermoviscous acoustics simulations are performed, and the results are compared in terms of simulation accuracy and computational cost.
