표제지
초록
Abstract
목차
제1장 서론 12
제2장 Panel Method 14
2.1. 지배방정식 14
2.2. 경계조건 18
2.3. 압력 및 공력계수 계산 20
2.3.1. 압력 계산 20
2.3.2. 공력 계수 22
2.4. Potential 계산 22
2.4.1. Constant source 23
2.4.2. Constant Doublet 24
2.4.3. Kutta condition 26
2.5. 패널 유도 속도 계산 31
제3장 Store Separation s Analysis 35
3.1. 6자유도 운동 방정식 35
3.2. 시간 적분 38
3.3. 사출장치 모델링 38
3.4. 안전 분리 해석 39
제4장 검증 및 해석 결과 42
4.1. Panel Method 42
4.1.1. Non-lifting body 42
4.1.2. Lifting body 51
4.1.3. Lifting/Non-lifting Combination 58
4.1.4. Unsteady 73
4.2. Store Separation Analysis 83
4.2.1. Trajectory 85
4.2.2. Miss distance 85
제5장 결론 90
참고 문헌 92
Appendix A 95
Table 1. Sphere flow condition 42
Table 2. Ellipsoid flow condition 45
Table 3. Ogive-cylinder with boat tail flow condition 48
Table 4. NACA 0012 airfoil flow condition 51
Table 5. Tapered swept wing flow condition 54
Table 6. WB configuration flow condition 59
Table 7. WB configuration number of grid and type 59
Table 8. WBT configuration flow condition 64
Table 9. DPW4 flow condition 69
Table 10. Suddenly set into a constant- speed forward flight NACA 0012 airfoil flow condition 73
Table 11. Suddenly set into a constant- speed forward flight NACA 0010 airfoil flow condition 75
Table 12. NACA 0010 airfoil pitching flow condition 77
Table 13. NACA 0010 airfoil plunging flow condition 78
Table 14. NACA 0010 airfoil feathering flow condition 78
Table 15. Eglin wing/pylon/store case flow condition 83
Figure 1. Triangular panel geometry 25
Figure 2. Variables definition for Kutta condition 27
Figure 3. Direction vector for arbitrary panel 33
Figure 4. Definition of adjacent panels by panel type 34
Figure 5. Ejector geometry 40
Figure 6. Definition of miss distance 41
Figure 7. Sphere grid 43
Figure 8. Sphere pressure distribution 44
Figure 9. Ellipsoid grid 46
Figure 10. Ellipsoid pressure distribution 47
Figure 11. Ogive-cylinder with boat tail grid 49
Figure 12. Ogive-cylinder with boat tail pressure distribution 50
Figure 13. NACA 0012 airfoil grid 52
Figure 14. NACA 0012 airfoil pressure distribution 53
Figure 15. Tapered swept wing grid 55
Figure 16. Position of each section 56
Figure 17. Tapered swept wing pressure distribution 57
Figure 18. WB configuration grid 60
Figure 19. WB configuration pressure distribution of the wing section according to grid 61
Figure 20. WB configuration Cp contour and position of sections[이미지참조] 62
Figure 21. WB configuration pressure distribution 63
Figure 22. Simple WBT configuration Cp contour(α=6˚)[이미지참조] 65
Figure 23. Simple WBT configuration variation of CL with α[이미지참조] 66
Figure 24. Simple WBT configuration variation of Cm with α[이미지참조] 67
Figure 25. Simple WBT configuration drag polar 68
Figure 26. DPW4 Grid 70
Figure 27. DPW4 Cp contour(α=2˚)[이미지참조] 71
Figure 28. DPW4 aerodynamic coefficient 72
Figure 29. Time dependant Cl of suddenly set into a constant-speed forward flight NACA 0012 airfoil[이미지참조] 74
Figure 30. Pressure distributions of Van de Vooren 13% airfoil 76
Figure 31. NACA 0010 airfoil grid 79
Figure 32. Time dependant Cl of pitching NACA 0010 airfoil[이미지참조] 80
Figure 33. Time dependant Cl of plunging NACA 0010 airfoil[이미지참조] 81
Figure 34. Time dependant Cl of feathering NACA 0010 airfoil[이미지참조] 82
Figure 35. Eglin wing/pylon/store grid 84
Figure 36. Linear displacements of store 86
Figure 37. Angular displacements of store 87
Figure 38. Miss distance of Eglin wing/pylon/store 88
Figure 39. Separation sequence at every 0.1s 89