Mach’s construction

Dec 26, 2024

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Discover the link between supersonic shockwaves and trigonometry through Ernst Mach's construction. Learn about the creation of shock fronts by objects moving at high speeds and their relation to wave speed. Explore the concept of Mach number and Kelvin wedge in this fascinating field of study.

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Mach’s construction

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Mach’s construction Dr Andrew French
What has a supersonic shockwave got to do with some really simple trigonometry?
Ernst Mach 1838-1916 Mach’s construction shock front Object moving at speed v creating waves as it moves ‘Infinitesimally thin’ spherical shells of disturbance are created continuously as the object moves. They radiate out at the wave speed c
Mach’s construction c is the wave speed v is the velocity of the object making the waves Mach number