- #1
davon806
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Homework Statement
Hi,
The below website states the definition of Mach number, which is a quantity that expresses how compressible a fluid is.
https://physics.info/turbulence/
M = sqrt [ ( inertial resistance in the fluid ) / ( compressional resistance in the fluid ) ]
= v / c
If M is very large, then a fluid is traveling really fast. By the definition in the website, it is equivalent to saying that it requires a large amount of force to start the motion in fluid. By the definition of M, we can also say the compressional resistance is small, i.e. the fluid is compressible.
However, I don't see why the quantities are related: What does it have to do with an object that needs a huge amount of force to move it, to its compressibility ? It would be really helpful if someone can explain the physical picture of velocity ratio , in the role of determining the compressibility of a fluid.Thanks in advance
Homework Equations
The Attempt at a Solution
In corporated in (1)
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