정상상태의 이차원 슬롯 충돌제트에 관한 수치 해석

Numerical Simulation of Two-Dimensional Impinging Slot Jet

  • 박태현 (서울대학교 대학원 기계항공공학부) ;
  • 최형권 (BK21 서울대학교 사업단) ;
  • 유정열 (서울대학교 기계항공공학부)
  • 발행 : 2000.11.02

초록

The characteristics of laminar and turbulent slot impinging jet flows are examined using segregated FEM with SUPG. Turbulent flows are modeled using $Wilcox^{(1)}$ $k-\;{\omega}$ turbulence model. The results are validated by comparing with velocity field of the existing experimental data. The distance of the target plate from the nozzle varies between 2, 4 and 5 times the slot jet width. Present study shows that the $k-\;{\omega}$ model gives results which agree well with the existing experimental data. In turbulence flows, the velocity profile of present calculation is more accurate than the existing numerical calculations. In laminar flows, We found tertiary vortex which was not found in the previous numerical study by M. $chen^{(6)}$ et al due to the numerical difference.

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