표제지
목차
Nomenclature 8
Abstract 9
제1장 서론 11
1.1. 연구 배경 11
1.2. 관련 연구 14
제2장 이론적 배경 16
2.1. 오일펜스 구조 16
2.2. 오일펜스의 종류 18
2.3. 오일펜스의 전장법 및 기능상실 22
제3장 CFD 해석 및 PIV 계측 26
3.1. CFD 계산 조건 및 해석 26
3.1.1. 수치 해석 26
3.1.2. 경계 및 해석 조건 27
3.2. PIV 계측 30
3.2.1. 실험 장치 30
3.2.2. 실험 조건 34
3.2.3. 계측 방법 36
제4장 실험결과 및 고찰 39
4.1. 레이놀즈 수 변화에 따른 영향 39
4.2. 격벽 주위 유동 46
4.3. 수평 속도 분포 50
4.4. 제반 유동 특성 및 모형실험 평가 57
4.5. CFD 속도, 압력, 난류강도 분석 66
제5장 결론 71
참고문헌 72
Table 2.1. Types of oil fence 17
Table 2.2. Materials of oil fence 17
Table 3.1. Specification of CFD system 29
Table 3.2. Experimental oil fence model conditions 33
Table 3.3. Experimental conditions with stratification parameter 33
Table 3.4. Measuring conditions of PIV 35
Fig 2.1. Oil fence 16
Fig 2.2. Types of oil fence 20
Fig 2.3. Types of failure of oil fences function 25
Fig 3.1. Mesh of Double wall 28
Fig 3.2. Components of Mesh 28
Fig 3.3. Schematic diagram of experiment 32
Fig 3.4. Water tank & Laser 32
Fig 3.5. Model of wal 32
Fig 3.6. Measuring section of wall model for PIV measurement 38
Fig 3.7. Camera & Inverter 38
Fig 3.8. Laser & PVC 38
Fig 4.1. Time mean U-Velocity vector in single wall 42
Fig 4.2. Time mean Velocity distribution in single wall 43
Fig 4.3. Time mean U-Velocity vector in double wall 44
Fig 4.4. Time mean U-Velocity distribution in double wall 45
Fig 4.5. Streamline in single wall 48
Fig 4.6. Streamline in double wall 49
Fig 4.7. Velocity distribution in single wall 1frame 53
Fig 4.8. Velocity distribution in single wall 500frame 54
Fig 4.9. Velocity distribution in double wall 1frame 55
Fig 4.10. Velocity distribution in double wall 500frame 56
Fig 4.11. Instantaneous velocity vector distribution in double wall... 59
Fig 4.12. Instantaneous velocity vector distribution in double wall... 60
Fig 4.13. Instantaneous velocity vector distribution in double wall... 62
Fig 4.14. Analysis of flow characteristics under double wall at 0.15㎧... 68
Fig 4.15. Analysis of flow characteristics under double wall at 0.18㎧... 69
Fig 4.16. Analysis of flow characteristics under double wall at 0.21㎧... 70