# Mach Number Calculation

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**Formula:**`M = V / a`

## Introduction to Mach Number Calculation

The Mach number represents the aircraft's speed as a multiple of the speed of sound. In fluid dynamics, it is a dimensionless quantity that can be calculated by dividing the velocity of the object by the local speed of sound. In this formula, ** M** represents the Mach number,

**is the velocity of the aircraft, and**

*V***is the speed of sound in the medium.**

*a*## Parameter usage:

`V`

= velocity of the object`a`

= local speed of sound

## Output:

`M`

= Mach number

## Data validation

The velocity and speed of sound should be greater than zero.

## Summary

This formula helps in calculating the Mach number, which is crucial in aerospace engineering and fluid mechanics.

Tags: Fluid Mechanics, Aerospace, Mach Number, Speed Of Sound