Impact of blockage ratio on the stability of premixed n-butane-air swirl flames

• Published in: Physics of fluids (1994) Vol. 36; no. 12
• Main Authors: Raj, Vishnu, Prathap, Chockalingam
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 01.12.2024
• Subjects: Air entrainment; Detached eddy simulation; Diffusion barriers; Diffusion layers; Diffusion rate; Equivalence ratio; Flameout; Image enhancement; Particle image velocimetry; Shear layers; Species diffusion; Stability; Strain rate; Turbulence; Turbulent flames

This study explores the impact of blockage ratio on the stability of swirl (axial swirl generator with S1.5) stabilized turbulent premixed n-butane/air flames at 1 bar, 300 K, and ϕ = 1.4 and ϕ = 0.8. Particle image velocimetry experiments and delayed detached eddy simulation simulations are employe...