Monday, 2 September 2013

The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is

a)    0.40 cm
b)    0.20 cm
c)    0.10 cm
d)    0.05 cm
Assume that boundary  layer is entirely laminar.

Ans: b


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