Stability analysis for the onset of thermoacoustic oscillations in a gas-filled looped tube

• Published in: Journal of fluid mechanics Vol. 741; pp. 585 - 618
• Main Authors: Hyodo, H., Sugimoto, N.
• Format: Journal Article
• Language: English
• Published: Cambridge, UK Cambridge University Press 25.02.2014
• Subjects: Applied sciences; Boundary layers; Cryogenics; Diffusion; Energy; Energy. Thermal use of fuels; Engines and turbines; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc; Exact sciences and technology; Flow velocity; Fluctuations; Fluid mechanics; Pores; Porosity; Propagation; Refrigerating engineering. Cryogenics. Food conservation; Spatial distribution; Stability analysis; Temperature distribution; Temperature gradients; Wavelengths; waves/free-surface flows; acoustics; instability; Heat engine; Wave propagation; Stability; Acoustic energy; Torus; Theoretical study; Thermoacoustic effect; Refrigeration

This paper develops a stability analysis for the onset of thermoacoustic oscillations in a gas-filled looped tube with a stack inserted, subject to a temperature gradient. Analysis is carried out based on approximate theories for a thermoviscous diffusion layer derived from the thermoacoustic-wave e...