Air at 25 c and 1 atm is flowing over a long flat plate with a velocity of 8 m/s. determine the distance from the leading edge of the plate where the flow becomes turbulent, and the thickness of the boundary layer at that location. repeat your solution for water flowing at 25 c and 1 atm.

Explanation:

Given data

Temprature of air=

pressure =1 atm

velocity(V)=8m/s

From the table for air at and 1 atm

kinematic viscosity

Reynolds number for turbulent flow

and Re.no.=

therefore length where turbulent flows start is

X=

X=0.976 m

Thickness of boundary layer is given by

for water

kinematic viscosity

Reynolds number for turbulent flow

and Re.no.=

therefore length where turbulent flows start is

X=

X=0.055m

Thickness of boundary layer is given by

answer:

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