Railways Technical Ability Fluid Mechanics and Machinery Question Bank Fluid Mechanics

  • question_answer The drage coefficient for laminar flow varies with Reynolds number (Re) as:

    A) \[{{\operatorname{Re}}^{1/2}}\]                      

    B) Re

    C) \[{{\operatorname{Re}}^{-1}}\]                       

    D) \[{{\operatorname{Re}}^{-1/2}}\]

    Correct Answer: D


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