Stonescar
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Hello,
I'm looking at this problem which states:
"A parallel air flow along a semi infinite flat plate has undisturbed parameters as follows: "
Then they list the speed, temprature, viscousity and pressure.
"Demonstrate that the boundary layer can treated by means of incompressible analysis. "
The solution says:
Incompressible if M[itex]^{2}_{\infty}[/itex]>>4
Where M[itex]^{2}_{\infty}[/itex]=[itex]\frac{U^{2}}{\gamma R T}[/itex]
I'm just wondering what formula this is? I've never seen it before.
What is M ?
I'm looking at this problem which states:
"A parallel air flow along a semi infinite flat plate has undisturbed parameters as follows: "
Then they list the speed, temprature, viscousity and pressure.
"Demonstrate that the boundary layer can treated by means of incompressible analysis. "
The solution says:
Incompressible if M[itex]^{2}_{\infty}[/itex]>>4
Where M[itex]^{2}_{\infty}[/itex]=[itex]\frac{U^{2}}{\gamma R T}[/itex]
I'm just wondering what formula this is? I've never seen it before.
What is M ?