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권기범(G.B. Kwon),김영상(Y.S. Kim),조상현(S.H. Cho),임홍식(H.S. Im),나운학(U.H. Nah),김현민(H.M. Kim) 한국유체기계학회 2000 유체기계 연구개발 발표회 논문집 Vol.- No.-
High efficient steam turbine stage has been developed with the help of the 3-dimensional design tool. In this stage design, the compound leaned stacking method has been adopted to reduce the secondary flow loss of a turbine passage and to increase the performance efficiency for the turbine nozzles. And the turbine buckets have been designed with the quasi-3-dimensional turbomachinery blade design method. To verify the stage design, therefore, the 3-dimensional numerical simulation of a steam turbine stage was conducted. In this design, CFX-TASCflow was employed to predict the turbulent flow of a steam turbine stage. The analysis was performed in parallel calculation using the HP N4000 8 CPUs machine. The result showed CFX-TASCflow could be used as the 3-dimensional flow analysis tool of steam turbine design.
권기범(G.B. Kwon),김영상(Y.S. Kim),조상현(S.H. Cho),임홍식(H.S. Im) 한국유체기계학회 2001 유체기계 연구개발 발표회 논문집 Vol.- No.-
The high efficient steam turbine stage has been analyzed with the help of the 3-dimensional analysis tool. To increase the efficiency of steam turbine stage, the nozzle has to be designed by using the 3-dimensional stacking method. And the bucket has to be designed to cope with the exit flow of nozzle. To verify the stage design, therefore, the numerical analysis of the steam turbine stage was conducted. In this design, CFX-TASCflow was employed to predict the steam flow of the steam turbine stage. The numerical analysis was performed in parallel calculation by using the HP N4000 8 CPUs machine. The result showed the numerical analysis could be used to help to design the steam turbine stage.
조상현(S.H. Cho),김영상(Y.S. Kim),권기범(G.B. Kwon),임홍식(H.S. Im) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.11
A rotating blade of intermediate pressure steam turbines for fossil power plant is designed using a blade design system. To minimize the design time, a quasi-three dimensional flow analysis code is adopted to calculate flow properties of the blade section. Each designed blade section is stacked-up and a whole three dimensional blade can be modified by correcting each blade section, repeatedly. The full 3D numerical analysis for the stage including designed rotating blade will be performed later.