Railways Technical Ability Fluid Mechanics and Machinery Question Bank Fluid Mechanics

  • question_answer Velocity defect in boundary layer theory is defined as:

    A) The error in the measurement of velocity at any point in the boundary layer

    B) The difference between the velocity at a point within the boundary layer and the free stream velocity

    C) The difference between the velocity at any point within the boundary layer and the velocity nearer the boundary

    D) The ratio between the velocity at a point in the boundary layer and the free stream velocity.

    Correct Answer: C


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