Major loss - head loss through fluid flowing pipe due to friction - Fluid Mechanics

Q.  The head loss through fluid flowing pipe due to friction is
- Published on 04 Aug 15

a. the minor loss
b. the major loss
c. both a. and b.
d. none of the above

ANSWER: the major loss

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    Discussion

  • Pankaj   -Posted on 30 Sep 15
    Whenever the fluid flows through a pipe, there are some energy losses occur in the pipe to overcome hydraulic resistance. These losses in pipe are different for various flow and pipe conditions. These energy losses through pipe are classified as follows:

    1. Major losses: Major losses are the losses which occur due to friction. These losses are calculated by Darcy-Weisbach formula.

    hf = (4 f L V2) / (2 g D)

    Where,
    f = Darcy's coefficient of friction.

    2. Minor losses: Minor losses are the losses which occur due to disturbance in the flow pattern such as sudden contraction or expansion in pipe, valves, bends etc.

    Minor losses are considered in short pipes.

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