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There is no geometry provided. The question is very specific to using the power law for the temperature dependence of viscosity. Which is why an area ratio is not really meant to be considered.
There is no geometry provided. The question is very specific to using the power law for the temperature dependence of viscosity. Which is why an area ratio is not really meant to be considered.
Homework Statement
Consider the isentropic expansion of air from a fixed given reservoir (i.e. total pressure and temperature). Investigate the behaviour of the value of the Reynolds number of the flow, as a function of the Mach Number M of the expanded flow.
For small values of M, the...