Development of Three-dimensional Tomography Technique for Analysis of Impinging Jet

충돌 제트 분석을 위한 3차원 토모그래피 기법 개발

  • 김용재 (성균관대학교 대학원 기계설계학과) ;
  • 안성수 (성균관대학교 대학원 기계설계학과) ;
  • 고한서 (성균관대학교 기계공학부)
  • Published : 2004.11.01


Three dimensional density distributions of impinging and eccentric flames have been investigated by digital speckle tomography. The flames have been ignited by a mixture of butane and air from a circular nozzle and impinged against a plate located at the upper side of the burner exit. For comparison with experimental data, computer synthesized phantoms of impinging and eccentric flames have been reconstructed by a developed three-dimensional multiplicative algebraic reconstruction technique (MART). The advanced reconstruction in the stagnation flow region involved the sharp change of the flow direction and pressure gradient has been developed using a cross-correlation method and new scanning technique for the speckle displacement.