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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 Lecture #3 Ehsan Roohi Ferdowsi University of Mashhad Faculty of Engineering
Example Pages 513-514 Aerodynamics, by: Anderson
Example P1 effects comes inside Cp
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'.
PRANDTL-MEYER EXPANSION WAVES • When a supersonic flow is turned away from itself • Non overtaking Mach Waves: Expansion is Isentropic
Example Read Ex. 4.16/ 4.17
Example L*1: Length required to chock. L*2: Length remaining to chocking length