The Spray Characteristics of Simplex Atomizer under Various Shroud Air Conditions with Swirl Flow

쉬라우드 공기의 선회 유동 특성 변화에 따른 심플렉스 연료 노즐의 분무 특성

The spray characteristics were investigated to study the effect of shroud air with swirl flow on simplex type fuel injector for gas turbine combustor. The spray tests using PDA(Phase Doppler Anemometry) technique were conducted to compare the performance of simplex atomizer with $0^{\circ},\;40^{\circ},\;50^{\circ}$ swirled-shroud air conditions. In this study. we found that the injector with strong swirled-shroud air has the better atomization Performance compared with weaker swirled and non-swirled conditions.