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[가솔린엔진] 레이저 회절법을 이용한 축대칭 분무 구조의 공간 분포 변환에 관한 실험적 연구
양승연(S.Y. Yang),이충훈(C.H. Lee),구자예(J.Y. Koo),정석호(S.H. Chung) 한국자동차공학회 1999 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Abel transformation Fourier transformation and onion peeling method tomographically reconstructed spatially resolved liquid volume fractions from a set of line-of-sight laser diffraction measurements for axisymmetric sprays generated from a pintle-type gasoline injector. Spatially resolved liquid volume fractions classified into 32 size groups were translated into number density distributions and equivalent diameters which showed well evaporating characteristics of Sl engine fuel sprays. These data were also obtained from the phase Doppler measurements for the same sprays. The comparison between laseㄱ diffraction measurements and phase Doppler measurements at some spatial measurement points shows that Fourier transformation reconstructs more reasonable spatially resolved characteristics for axisymmetric sprays as well as for asymmetric sprays