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Irregular Particle Tracking and Lunar Dust Remo
- 4. Part I Tracking of Irregular Shaped Particle Part II Modeling and Simulation of Lunar Dust Remover
- 8. MOTION STUDY (Time Step) Translation (C D & C L ) Rotation (T & θ ) +
- 9. TRANSLATION From θ T α=T/I ω = ω 0 + αt θ p = θ 0 + ωt + ½ αt 2 θ f = tan -1 (Vy rel /Vx rel ) θ = θ p - θ f θ C D and F D θ 0 = θ and ω 0 = ω Steps or Domain STOP START I, m, θ, C D , C L & T C D & C L Y N
- 10. MODEL TO STUDY TRANSLATION V Elliptical barrier tilted at different angle 0.05 X 0.1 m 2D flow path
- 12. VARIATION WITH ANGLE Variation of Coefficient of Drag Variation of Coefficient of Lift
- 13. VARIATION OF C D WITH ANGLE
- 14. ROTATION From θ T α=T/I ω = ω 0 + αt θ p = θ 0 + ωt + ½ αt 2 θ f = tan -1 (Vy rel /Vx rel ) θ = θ p - θ f θ C D and F D θ 0 = θ and ω 0 = ω Steps or Domain STOP START I, m, θ, C D , C L & T Torque T Y N
- 15. STUDY OF TORQUE Torque = Force × Displacement Pressure Force Shear Force
- 16. VARYING TORQUE WITH ANGLE
- 17. UDF FOR ELLIPTICAL PARTICLE Relative Angle Relative Reynolds Number Drag Lift
- 18. STRAIGHT CHANNEL Spherical Particle Track Comparison of Spherical & Elliptical Particle Track
- 19. ELBOW CHANNEL Spherical Particle Track Comparison of Spherical & Elliptical Particle Track
- 21. PART II : LUNAR DUST REMOVER Dust Remover Air Filter Enclosed Capsule Wall Air Circulation Line Inlet Outlet Blower Outer Door Inner Door
- 23. RECTANGULAR MODEL Pro-E model Velocity Pathlines Simple flow Particle Track Swirl flow 0 Sec 18
- 24. CYLINDRICAL MODEL Pro-E model Particle Track Simple flow Velocity Pathlines Swirl flow 0 Sec 11.8 1 0 m/s
- 25. MORE DUST REMOVER MODEL Pear Shaped Model Dome Shaped Model
- 26. DOME SHAPED MODEL Particle track Swirl flow Velocity pathlines and vectors Simple flow
- 27. PEAR SHAPED MODEL Particle track Swirl flow Velocity vectors Swirl flow
- 28. COMPARISON: PARTICLE ESCAPED Model Flow type Particle Escaped out of 100 In 30 Sec. In 60 Sec. Rectangular Simple 28 37 Swirl 30 54 Cylindrical Simple 52 75 Swirl 32 50 Dome Shape Simple 85 89 Swirl 57 87 Pear Shape Simple 47 49 Swirl 100 100
- 29. COMPARISON OF MODELS Particles Removed Out of 100 Models