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The Blasius solution applies to a boundary layer that is

  • A.Laminar, on a plate with no pressure gradient
  • B.Turbulent on a flat plate
  • C.Laminar with a strong adverse pressure gradient
  • D.Compressible at supersonic speed

Answer: A

Blasius reduced the laminar flat-plate problem to a single ordinary differential equation by a similarity transformation, which works only when there is no pressure gradient to introduce a length scale. It is the reference case against which every other laminar layer is compared.

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