You happen to observe, from a stationary ocean vessel, a dragon capsule at an altitudeof 40,000 ft in the final stages of reentry traveling 600 m/s. For this problem, you may assume that the velocity is changing slowly enough to apply a steady flow analysis.(a) Just behind the bow shock, what is the flow velocity from your perspective onthe ground? Take the direction of motion of the capsule as positive and assumeno wind.(b) Compute the temperature behind the bow shock and the temperature at thesurface stagnation point.(c) Compute the total temperature of the pre-shock and post-shock gas as observedfrom the ground and observed by an astronaut watching from inside the capsule.Compare and contrast your results.
You happen to observe, from a stationary ocean vessel, a dragon capsule at an altitude
of 40,000 ft in the final stages of reentry traveling 600 m/s. For this problem, you may assume that the velocity is changing slowly enough to apply a steady flow analysis.
(a) Just behind the bow shock, what is the flow velocity from your perspective on
the ground? Take the direction of motion of the capsule as positive and assume
no wind.
(b) Compute the temperature behind the bow shock and the temperature at the
surface stagnation point.
(c) Compute the total temperature of the pre-shock and post-shock gas as observed
from the ground and observed by an astronaut watching from inside the capsule.
Compare and contrast your results.
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