지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수2
2015
2014
Chapter 1 Introduction 11.1 Background 11.2 Objectives and Methodology 3Chapter 2 Theoretical Background 52.1 Working principle of centrifugal compressor 52.2 The effect of blade shape on performance 52.3 Velocity triangles 62.4 Tip clearance 72.5 Diffuser 82.6 Isentropic efficiency 92.7 Total pressure ratio 10Chapter 3 Numerical Analysis 173.1 Reference model 173.2 Computational fluid dynamics (CFD) analysis 183.2.1 Governing equations 183.2.2 Turbulence model 193.2.3 Grid systems 203.2.4 Boundary conditions and analysis method 203.3 Fluid-structure interaction (FSI) analysis 293.3.1 Governing equation 293.3.2 Grid systems 303.3.3 Boundary conditions and analysis method 30Chapter 4 Shape optimization 344.1 Parameterization 344.2 Design of experiments 354.3 Response surface method 364.3.1 Non-parametric regression method 364.3.2 Validation of approximation model 384.4 Optimal design procedure 38Chapter 5 Results and Discussion 455.1 Results of reference model 455.1.1 Results of aerodynamic performance 455.1.2 Validation of the CFD results 455.1.3 Effect of tip clearance 465.1.4 Results of structural analysis 465.2 Sensitivity analysis 475.3 Results of optimal design 47Chapter 6 Conclusions 65References 67Appendix A 73A.1 Failure of impeller blade 73
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