Fluid Dynamics -- Find the maximum possible flow speed on the streamline....

[zigggy23]

Homework Statement

At point A in the flow of a compressible fluid, the flow speed is 100 m s−1 and the Mach number of the flow is 0.6. Find (i) the maximum possible flow speed on the streamline through A, and (ii) the flow speed at a point where the pressure has fallen to half its value at point A. Assume the flow to be adiabatic, with index γ = 1.4

Homework Equations

bernoulli's equation for compressible flow & the mach relations

The Attempt at a Solution

I've done part a and I've been playing around with bernoulli's equation and the Mach relations found here https://www.grc.nasa.gov/www/k-12/airplane/isentrop.html for a few hours now. If anyone can help with part b would be much appreciated.

 

[LightHero]

i) Maximum possible flow speed on the streamline through A:vmax = Ma * a = 0.6 * (γRT)^(1/2)= .6*(1.4*287*288)^(1/2) = 345 m/sii) Flow speed at point where pressure has fallen to half its value at point A:I'm stuck here