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단일 및 다단의 가스 터빈 블레이드의 2차원 단면 유동 해석
전상언(S.E. Jeon),문찬웅(C.W. Moon),박수형(S.H. Park),사정환(J.H. Sa),신정훈(J.H. Shin) 한국전산유체공학회 2017 한국전산유체공학회지 Vol.22 No.3
Numerical investigation on two-dimensional blades of axial gas turbine is presented. The mixing plane method is applied for the boundary condition for multi-stage analysis. This method can be applied if flow field is steady and flow variations are neglected in the pitch-wise direction. The computation results are validated with the experimental data and effects of turbulence models are investigated. The VKI results using a transition model show closer correlation with the experimental data than those with fully turbulent assumption. The transition model using transport equations is widely used at moderate Reynolds numbers. The accuracy and usefulness of flow analysis on two-dimensional unsteady turbine are assessed through the multi-stage validation with the mixing plane method.