A Basic Study on Combustion Noise of Premixed Flames in Sudden Expansion Channels
급속 확대 채널 예혼합 화염의 연소 소음 기초 연구
Abstract
Flame stabilization conditions and combustion noise characteristics induced by premixed flames in sudden expansion channels were experimentally investigated. Nozzle size and channel scale were varied continuously, and variation of flame behaviors was examined. Combustion noise was observed at specific configurational conditions, and their mechanism was investigated. This study will help understand premixed flame instability at the burner surface.