No announcement yet.

plumbing physics question?

  • Filter
  • Time
  • Show
Clear All
new posts

  • #16
    Re: plumbing physics question?

    well actually it takes more pipe if it's curved. plus more sky hooks. lol. does the pipe go through paris, france or houston, tx? or some other path? breid...............


    • #17
      Re: plumbing physics question?

      Just as a reminder, the above statements are only true with static pressure.

      "Somewhere a Village is Missing Twelve Idiots!" - Casey Anthony

      I never lost a cent on the jobs I didn't get!


      • #18
        Re: can

        Originally posted by breid1903 View Post
        pic #2. capillary action. in a 2.0 m(6.6') pipe ca is .014 mm. in a 2 cm(.79") pipe ca is 1.4 mm. breid..................
        I think breid wins. Does everyone want to be right, or almost right?

        Breid, will the capillary action/meniscus vary as to the pipe material?



        • #19

          good question. not as far as i know. been a long time since i studied any of this. i would say not as ca is directly proportional to the diameter. but that doesn't mean that there are not other things at play, that i don't remember. i left college in 1965. as for meniscus, well if you were to change the properties of the straw who knows. i want to say that in physics class we cut off a straw and made it shorter than the glass. then set there with an eye dropper and keep adding drops until we got the straw to have a convex meniscus. the water was "crowned" above the straw. i'm NOT in college anymore, so you are on your own. breid.................


          • #20
            Re: plumbing physics question?

            ...the water was "crowned" above the straw. ...
            This I believe is due to surface tension/molecular attraction of the water. Impurities in the water and other factors can influence its behavior.
            "When we build let us think we build forever. Let it not be for present delight nor for present use alone. Let it be such work that our descendants will thank us for, and let us think, as we lay stone upon stone, that a time is to come when these stones will be held sacred because our hands have touched them, and that men will say, as they look upon the labor and wrought substance of them, "See! This our fathers did for us."
            John Ruskin (1819 - 1900)