Wake Wave Height

Discussion in 'Boat Design' started by Kate, Jan 4, 2006.

  1. terhohalme
    Joined: Jun 2003
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    Location: Kotka, Finland

    terhohalme BEng Boat Technology

    Well, aren't biggest wakes from vessels with biggest residual resistance? I think the main factors are displacement and speed. That is heavy and powerfull boats using Froude number somewhere between 0.5 - 0.8. In narrow waters a big ship passing by even if slowly, generates huge underwater currents making a lot of erosion in banks.
     
  2. Guillermo
    Joined: Mar 2005
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    Location: Pontevedra, Spain

    Guillermo Ingeniero Naval

  3. Leo Lazauskas
    Joined: Jan 2002
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    Location: Adelaide, South Australia

    Leo Lazauskas Senior Member

    Good reference, Guillermo. The authors were instrumental in setting up the "Washington State Ferry Limit" which is used as a standard in many harbours. Unfortunately, it is still a fairly crude gauge of actual wake height, as it is derived on the basis of energy shed as transverse waves (waves roughly perpendicular to the ship's track). At high speed more energy is shed in the form of diverging waves and it is those waves that are more dangerous to other users and damaging to shorelines.

    Happy New Year,
    Leo.
     
  4. yipster
    Joined: Oct 2002
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    Location: netherlands

    yipster designer

    thanks for the links Guillermo
     
  5. trouty

    trouty Guest

    Come back Kate!

    :confused:

    Darn it - I think I'm in love!:D

    Sheesh for a few seconds there - we had a woman member and we let her get away!:rolleyes:

    Where is Wahoo Woman when you need her...or Cactus Kate....(a prickly little 'beach" to handle maybe?) ;)

    I dunno fella's - I'm off to google search "womens boating" websites!....things round here are waaaay to dull!:) :cool:

    Cheers!
     
  6. trouty

    trouty Guest

  7. artemis
    Joined: Oct 2004
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    Location: USA

    artemis Steamboater

    Goh, trouty, based on where you live should get in touch with Dorothy and Toto. :D
     
  8. trouty

    trouty Guest

    Doncha just hate that?

    :confused:

    A Gal posts up a question, and half the male memership jump thru countless hoops to provide a few reasonable answers....and not even the courtesy to come back n see if anyone replied! :rolleyes:

    You know - they are just as careless - when they drive cars in supermarkets!:p

    I dunno, maybe it's a blonde thing, ahhh - "hey look at me the world revolves around me!"...

    Maybe we should make this a males only web site....I don't think women have the integrity to be members (as a generalisation based on this thread!).

    Should ANYONE be able to join, and post questions - if they don't priovide even a email address to tell em to come back and check their thread?

    Sadly she claims to be an aussie...I think maybe we'd disown her frankly!!

    On second thoughts....don't come back Kate!:mad:

    Cheers!
     
  9. Kate
    Joined: Jan 2006
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    Location: Australia

    Kate New Member

    My sincere apologies gentlemen - other matters temporarily required a vast deal of attention and time :)

    Just wanted to thank you all for your comments and interest! Really do appreciate the insight - would love to be able to respond in kind, but think I need to do some study first.

    Thanks heaps! Looking forward to seeing how this continues!
     
  10. trouty

    trouty Guest

    OK admit it!

    Yep - you crashed the car in the supermarket - didn't you! :D

    lemme guess - the guy you crashed into was cute - and you've been dating him for two weeks before you could tear yourself away to get back to us! :rolleyes: :D

    Tis OK, Kate - you'll get used to us...as Nino Culotta once said
    (and as head weirdo, i can vouch for that fact!). :)

    Don't be scared to have your 2 bobs worth, you don't actually have to know ANYTHING to post here (I'm living proof of that!). :p

    Soo - just why the interest in wave wake heights anyway? - you studying?, Live on a canal system? (Please tell me your the cute blonde in the blue canoe paddles past my place every morning - damn she's hot!) ;)

    Curious minds want to know (everything!....well in truth - anything will do - don't keep us dangling on a string!).

    Do you know how long it is since a woman posted on this website????

    Lemme see now - that woulda been wahooo woman back in 98 most probably! :rolleyes:

    Ya'll come back now - or we'll label you "Kactus Kate", (Prickly little B!tch to handle!) :D :D

    Yup yup yup...irrepressible - thats me!

    Cheers!
     
  11. Leo Lazauskas
    Joined: Jan 2002
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    Location: Adelaide, South Australia

    Leo Lazauskas Senior Member

    Goodbye boatdesign.net
     
  12. yipster
    Joined: Oct 2002
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    Location: netherlands

    yipster designer

    yeah, whats that trouty, thought I was the weirdest? :p
     
  13. masrapido
    Joined: May 2005
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    Location: Chile

    masrapido Junior forever

    I have been in australia for barely a month but can confirm that they are all like trouty...

    you should see what they do with their ear rings...I can only hope Leo is not sporting half a kilo of silver on his face and a tatoo in an unmentionable spot on the skin...
     
  14. trouty

    trouty Guest

    Trust me Masrapido

    I can assure you - that - when they made me - they broke the mould in dusgust! ;) :D

    I'm sure Kates more than capable of taking down a loud mouth Aussie like me, with but the simplest come back quip.....'tis a survival skill they all learn pretty young downunder! ;)

    Place is crawlin with red neck 'ockers like me on every corner, although - I admit I can't actualy lay claim to any body piercing silverware or tatoos...(if you make exception for all the tattoo's of rabbits across my forehead.... - it's a long story - but with a receeding hairline, someone once conviced me in a blind drunk coma - that to have all those tatoos of rabbits on my forehead, on a dark night - gals might actually mistake them for hairs!) boom boom! :D

    Ohh well...back to dating wahoo woman by the looks!:rolleyes: (Theres always the blonde paddles past in the canoe!) :idea:

    Things are definitely lookin up around here!

    Cheers!
     
  15. masrapido
    Joined: May 2005
    Posts: 263
    Likes: 35, Points: 28, Legacy Rep: 330
    Location: Chile

    masrapido Junior forever

    I dare not to ask for a photo ( of the tattoo...)

    :D
     

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