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.
이용수1
I. Introduction 11. Blade profile 31.1. Special blades for wind turbine 31.2. Around the blade flow characteristics 52. The present situation and trend of drag reduction and flow control research development 82.1. Introduction of drag reduction methods 92.2. Introduction of dimple drag reduction 122.3. Introduction of riblets drag reduction 15II. Related physical problem and research methods 181. Boundary layer 191.1. Introduction 191.2. The flow state of boundary layer 201.3. The turbulent boundary layer 212. The methods of hydromechanics 272.1. Experimental methods 282.2. Numerical simulation method 292.2.1. The basic principle of CFD 302.2.2. The methods of CFD 312.2.3. The turbulence model 362.2.4. The solving process of CFD 43III. The research Introduction of inward dimple drag reduction 461. Introduction the airfoil stress 472. Verification for the turbulence characteristic in open channel 483. Comparison for drag coefficient and lift coefficient of model1 and model2 553.1. Introduction model1 and model2 553.2. Best selection for dimple size 564. The physical 3D model 625. The governing equation with a turbulence model and computational conditions 646. Results and discussion 676.1. The results of the drag coefficient between model1 and model2 simulation under different angle of attack 676.2. The results of the lift coefficient between model1 and model2 simulation under different angle of attack 696.3. The separation regions of model1 and model2 with respect to angle of attack 71IV.Conclusion 75References 77국문초록 86
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