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Introduction to Propulsion

Introduction to Propulsion. Lecture #3 Ehsan Roohi Ferdowsi University of Mashhad Faculty of Engineering. Oblique Shock: who Knows me? (Chap. 4, Anderson, MCF). Breaking the Sound Barrier with an Aircraft. Shock Relation. Shock Relation. q - b -M Relation. Example. Pages 513-514

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Introduction to Propulsion

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  1. Introduction to Propulsion Lecture #3 Ehsan Roohi Ferdowsi University of Mashhad Faculty of Engineering

  2. Oblique Shock: who Knows me? (Chap. 4, Anderson, MCF)

  3. Breaking the Sound Barrier with an Aircraft

  4. Shock Relation

  5. Shock Relation

  6. q-b-M Relation

  7. Example Pages 513-514 Aerodynamics, by: Anderson

  8. Example P1 effects comes inside Cp

  9. Shock Reflection

  10. INTERSECTION OF SHOCKS OF OPPOSITE FAMILIES q3+f q2-f Therefore, the entropy in regions 4 and 4‘ is different. Consequently, the dividing streamline EF between these two regions is a line across which the entropy changes discontinuously. Such a line is defined as a slip line. temperature and density, as well as the entropy and velocity magnitude, are different in regions 4 and 4'.

  11. INTERSECTION OF SHOCKSOF THE SAME FAMILY

  12. DETACHED SHOCK WAVE IN FRONT OF A BLUNT BODY

  13. PRANDTL-MEYER EXPANSION WAVES • When a supersonic flow is turned away from itself • Non overtaking Mach Waves: Expansion is Isentropic

  14. Read book on how convert dV to dM

  15. PRANDTL-MEYER EXPANSION WAVES

  16. Example Read Ex. 4.16/ 4.17

  17. Nozzle

  18. Example: Constant Area Heating

  19. Tables

  20. Example L*1: Length required to chock. L*2: Length remaining to chocking length

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