Question $4$

Air at $20C$ flows into a $2-$D intake like the one shown in Figure $3$ at a velocity $V_1.$ A distance $L_2$ from the intake inlet, the flow is divided by a centrally placed flat plate. Calculate the axial velocity outside the boundary layer at a distance $L_1$ from the start of the inlet.

$L_1=3m$;$L_2=2m$;$V_1=2\frac{m}{s}$;$H=0\mathrm{.}5m$

$($for turbulent boundary layers use momentum integral estimate, for laminar boundary layers use Blasius solution$)$

$($a$)1\mathrm{.}896\frac{m}{s}$

$($b$)2\mathrm{.}110\frac{m}{s}$

$($c$)2\mathrm{.}053\frac{m}{s}$

$($d$)2\mathrm{.}269\frac{m}{s}$