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Match each Blasius laminar result in List I with its value in List II.

List I

A. Boundary layer thickness coefficient

B. Displacement thickness coefficient

C. Momentum thickness coefficient

D. Shape factor

List II

1. 1.721

2. 5.0

3. 2.59

4. 0.664

Select the correct match.

  • A.A-2, B-1, C-4, D-3
  • B.A-1, B-2, C-4, D-3
  • C.A-2, B-4, C-1, D-3
  • D.A-3, B-1, C-4, D-2

Answer: A

Each coefficient multiplies the distance from the leading edge divided by the square root of the local Reynolds number. The shape factor is the ratio of the second to the third, and 1.721 divided by 0.664 gives 2.59 as it should.

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