Experimental investigation of entropy waves generated from acoustically excited premixed swirling flame
Sign Up to like & getrecommendations! Published in 2019 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2019.03.005
Abstract: Abstract Entropy waves play an important role in the production of indirect combustion noise and thermoacoustic instability. The characteristics of entropy waves from swirling flames have not been systematically investigated. Here, a premixed methane/air swirl… read more here.
Keywords: entropy waves; premixed swirling; entropy; waves generated ... See more keywords
Sound generated by axisymmetric non-plane entropy waves passing through flow contractions
Sign Up to like & getrecommendations! Published in 2022 at "International Journal of Aeroacoustics"
DOI: 10.1177/1475472x221107368
Abstract: For a single-component perfect gas, entropy perturbations are associated with the difference between the overall density fluctuation and that coming from the acoustic perturbation. Entropy perturbations can generate sound when accelerated/decelerated by a non-uniform flow… read more here.
Keywords: entropy waves; sound generated; non plane; entropy ... See more keywords