問題詳情

5.(20%) For turbulent flow in a smooth pipe with pVD/μ ＜ 105，the velocity profile in the turbulent core can be approximated by the following power equation:  

  where y and r are respectively the distances measured from the pipe wall and the pipe axis, and ro is the radius of the pipe. What is the average velocity V of this pipe flow if expressed in umax?

參考答案

答案：C
難度：簡單0.707317
統計：A(17),B(2),C(58),D(0),E(0)

用户評論

【happy wheels】評論

對不起答案誤植..答案應改為C

【Grace Chang】評論

官方答案C

【Principessaa】評論

原本答案為A,修改為C