한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제4권3호
  • /
  • Pages.130-138
  • /
  • 1996
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

RVM을 사용한 큰지름비 동축젯트의 비정상 수치해석

Numerical Simulation of Unsteady Flow Field behind Widely-Spaced Co-axial Jet using Random Vortex Method

  • 류명석 (고등기술연구원, 자동차기술연구실) ;
  • 강성모 (한양대 기계공학과 대학원) ;
  • 김용모 (한양대 기계공학과)
  • 발행 : 1996.05.01
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초록

The transient incompressible flow behind the widely-spaced co-axial jet is numerically simulated using the random vortex method(RVM). This numerical approach is based on the Lagrangian approach for the vorticity formulation of the unsteady Navier-Stokes equations, utilizing vortex elements to account for the convection and diffusion processes. The effects of the mass flow rate of an annular air jet and a central fuel jet on the co-axial jet flow dynamics is investigated. To validate the present procedure, the numerical results are compared with the available experimental data the present procedure, the numerical results are compared with the available experimental data in terms of the centerline and off-centerline profiles of the mean axial velocity. Discrepancies between the RVM results and the measurements are discussed in detail.

키워드

참고문헌

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