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류명석(M. S. Lyu),강성모(S. M. Kang),김용모(Y. M. Kim) 한국자동차공학회 1996 한국 자동차공학회논문집 Vol.4 No.3
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 ap-proach for the vorticity formulation of the unsteady Navier-Stokes equations, utilizing vortex ele-ments 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 vali-date 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.<br/>
유승원(S. W. You),강성모(S. M. Kang),김용모(Y. M. Kim) 한국전산유체공학회 2001 한국전산유체공학회지 Vol.6 No.1
The transient laminar reacting flows around fuel droplet have been numerically analyzed. The physical models used in this study can account for the variable thermophysical properties and the chemistry is represent by the one-step global reaction model. The present study is focused on the vaporization and ignition characteristics, flame structure including wake flame, transition flame and envelope flame, and interaction between droplets. Special emphasis is given to the triple flame structure and flame stabilization.
유승원(S. W. You),강성모(S. M. Kang),김태준(T. J. Kim),김용모(Y. M. Kim) 한국전산유체공학회 2000 한국전산유체공학회 학술대회논문집 Vol.2000 No.10
The transient laminar reacting flows around fuel droplet have been numerically analyzed. The physical models used in this study can account for the variable thermophysical properties and the chemistry is represent by the one-step global reaction model. The present study is focused on the vaporization and ignition characteristics, flame structure including wake flame, transition flame and envelope flame, and interaction between droplets. special emphasis is given to the triple flame structure and flame stabilization.