1.

The boundary layer thickness for an incompressible, laminar flow at a distance x with Reynolds number Rex is . Which is____

A. Directly proportional to x
B. Inversely proportional to x
C. Directly proportional to Re<sub>x</sub>
D. Inversely proportional to Re<sub>x</sub><sup>2</sup>
Answer» B. Inversely proportional to x


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