The Mach number (M or Ma), often only Mach (; German: [max]), is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a boundary to the local speed of sound. It is named after Austrian-Czech physicist and philosopher Ernst Mach.
The Mach number (M or Ma), often only Mach (; German: [max]), is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a boundary to the local speed of sound. It is named after Austrian-Czech physicist and philosopher Ernst Mach.
Source: Wikipedia "Mach number" · CC BY-SA 4.0
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