Thermoacoustic Effect Under the Influence of Resonator Curvature

The present work deals with a CFD simulation of thermoacoustic engine composed of two heat exchangers, stack and resonator. The simulation is based on a numerical model based on coupled compressible Navier-Stokes and heat transfer equations that govern the working gas using COMSOL Multiphysics. The objective of this work is to investigate the effect of different bent resonators (30°, 60°, 90°) and the effect of varying the length over which a constant curvature angle (90°) on acoustic pressure and the operating frequency of thermoacoustic engine.