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Thread: Math nerds UNITE!

  1. #31
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    yeah internal diameter and yeah no head loss due to friction.

    The velocity is only part of it, im trying to workout if the flow is turbulent or lamminar.

    Should get there now I think!
    Then I could get a Kb Tshirt, move to Timaru and become a full time crossdressing faggot

  2. #32
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    Irrelevant; if you're given the fixed flow by volume, then it doesn't matter in the slightest HOW its flowing.

    pipe diameter 30cm
    rate 17886070.38 liters per day.

    That is all the information required to calculate a linear flow rate.

    Edit: actually, it's your question, so it may not be irrelevant. now that you have the linear flow velocity, you could derive the viscosities/frictions in reverse.
    Eat the riches! Eat your money! The revolution will be DELICIOUS!!!

  3. #33
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    Im working out if the flow is turbulant or not the forumla needs it in m/s to work (as you may of guessed im not smart enough to adjust the formula to suit L/day... )
    Then I could get a Kb Tshirt, move to Timaru and become a full time crossdressing faggot

  4. #34
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    Alright time for another brain buster!

    Basicly its the first part to the question in the photo, ive looked at all my text books but I can't seem to find any relevant info.

    This question has been taken from an old exam, its in every exam from 2000-2005 so I think it will be in the exam I have to sit tomorrow!

    So can anyone figure this one out? The first part would be the best help cheers
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    Then I could get a Kb Tshirt, move to Timaru and become a full time crossdressing faggot

  5. #35
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    Quote Originally Posted by renegade master View Post
    Alright time for another brain buster!

    Basicly its the first part to the question in the photo, ive looked at all my text books but I can't seem to find any relevant info.

    This question has been taken from an old exam, its in every exam from 2000-2005 so I think it will be in the exam I have to sit tomorrow!

    So can anyone figure this one out? The first part would be the best help cheers
    Just Bernoulli's Eq. init? I havent looked at fluids in a long while, can't remember the equation exactly but it relates pressures to velocities, and your mass flow rate and change in section will give you the new velocity, and hence the pressure at 2. Or some such thing. And then the same idea but backwards for the next part.

  6. #36
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    Smile

    That is a trick question! It clearly shows an empty bottle lying on it's side. A trip to the fridge is in order!

  7. #37
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    Quote Originally Posted by thealmightytaco View Post
    Just Bernoulli's Eq. init? I havent looked at fluids in a long while, can't remember the equation exactly but it relates pressures to velocities, and your mass flow rate and change in section will give you the new velocity, and hence the pressure at 2. Or some such thing. And then the same idea but backwards for the next part.
    Yeah I guess so, but you don't know what fluid is flowing and its denisty value as part of bernoulli's is pressure divided by density times gravity...
    Then I could get a Kb Tshirt, move to Timaru and become a full time crossdressing faggot

  8. #38
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    Poosibly to late now but its benoulis and the density is given as it says water , all you are doing Is solving bernoulis for the dia of the pipe.

    plug every thing into bernoulis in its bas form and you will see...

    Is that Ar#$%&7e still doing exam questions ....ask Eric about the the buckling question he got ,,,

    They smoke FARRRR to much up there in Wellington NCQA offices

    Stephen
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  9. #39
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    OIC I was looking every where in the words that it was water but couldnt find it! Good thing Im on KB 30min before my exam! Cheers mate!
    Then I could get a Kb Tshirt, move to Timaru and become a full time crossdressing faggot

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