Answer: The maximum velocity of fluid flowing in a circular channel occurs at the centre of the channel.
Explanation: starting from the material balance equation and going through Newton's law of viscosity.
The velocity profile of a circular channel is
V(r) = Vmax(1 - (r/R)^2))
V(r) is velocity at any point in the circular channel along the radial direction starting from r=0 at the centre and r=R at the internal side of the circular channel.
So, the maximum obtainable from that distribution is at the centre where r=0 and V(r) = Vmax.
Answer:2m
Explanation:
Wavelength=velocity/frequency
Wavelength=4/2=2m
