A thermistor probe, in the shape of a needle parallel tothe fl ow, reads a static temperature of -25°C wheninserted into a supersonic airstream. A conical disturbancecone of half-angle 17° is created. Estimate (a) theMach number, (b) the velocity, and (c) the stagnationtemperature of the stream.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A thermistor probe, in the shape of a needle parallel to
the fl ow, reads a static temperature of -25°C when
inserted into a supersonic airstream. A conical disturbance
cone of half-angle 17° is created. Estimate (a) the
Mach number, (b) the velocity, and (c) the stagnation
temperature of the stream.

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