Numerical Visualization of the Shock Wave System Discharged from the Exits of Two-Parallel Ducts

두 평행한 관 출구로부터 방출되는 충격파시스템의 수치해석적 가시화

  • 정성재 (안동대학교 대학원 기계공학과) ;
  • 권용훈 (일본 큐슈대학 대학원 총합이공학 연구과) ;
  • 김희동 (안동대학교 기계공학부) ;
  • 강창수 (경북대학교 기계공학과)
  • Published : 2004.11.01

Abstract

The present study describes a computational work to investigate detailed behaviors of the twin shock waves discharged from the exits of two-parallel ducts. In computations, the Yee-Roe-Davis's TVD scheme was used to solve the unsteady, three-dimensional, inviscid, compressible, Euler equations. The distance between two ducts is varied and the Mach number of the incident shock wave is changed below 2.0. The results obtained show that on the symmetric axis between two-parallel ducts, the maximum pressure achieved by the merge of twin shock waves and its location strongly depend upon the distance between two-parallel ducts and the Mach number of the incident shock wave. It is also found that the twin shock waves discharged from the exits of two-parallel ducts leads to the complicated flow fields, such as Mach stem, spherical waves, and vertical structures.

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