A Mach number is a dimensionless quantity used in fluid dynamics to characterize the flow characteristics of a fluid across a shock wave. It is defined as the r...
A Mach number is a dimensionless quantity used in fluid dynamics to characterize the flow characteristics of a fluid across a shock wave. It is defined as the ratio of the speed of sound in a fluid to the speed of sound in a perfect gas at the same temperature and pressure.
Mathematically, the Mach number is calculated as:
where:
is the speed of the fluid relative to the observer
is the speed of sound in a perfect gas at the same temperature and pressure
The Mach number is a useful parameter for engineers and scientists in various applications involving fluid flow, such as supersonic aircraft, supersonic bombs, and shock waves in gases. It provides valuable insights into the flow behavior and helps predict the performance of a fluid system