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Coefficient of friction due to water

  1. Mar 5, 2008 #1
    I wasnt able to find anything on the internet, so maybe someone else can help. I need to know the coeifficient of friction due to water. Like say a submarine is being pulled by something through the water and what i need to know is what would the friction be for the submarine (if there is a universal number for friction by water) or how to solve for it. I am in 11th grade so hopefully the answer isnt too complicated.
     
  2. jcsd
  3. Mar 6, 2008 #2
    Thats going to be next to impossible for you to find. Its not a simple friction problem, but a complicated fluid dynamics problem. This is a very, very, very, tough problem.
     
  4. Mar 6, 2008 #3

    tiny-tim

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    Hi spri4! Welcome to PF! :smile:

    Basically, friction is where the thing you're rubbing against stays where it is.

    But when you move through a fluid (treacle, water, air, …), you drag some of the fluid with you. That's called viscosity, of course.

    You need the viscosity, not the friction! :smile:

    (You could try: http://en.wikipedia.org/wiki/Viscosity - but I don't recommend it! :smile:)
     
  5. Mar 6, 2008 #4
    Thanks.
     
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