Re: KRS lake

From: Eric Stevens (eric.stevens_at_sum.co.nz)
Date: 08/10/04 

Date: Tue, 10 Aug 2004 16:06:25 +1200

On Tue, 10 Aug 2004 02:17:24 GMT, Seppo Renfors <Renfors@not.net.au>
wrote:

>
>
>Eric Stevens wrote:
>>
>> On Mon, 09 Aug 2004 08:01:06 GMT, Seppo Renfors <Renfors@not.com.au>
>> wrote:
>>
>> >
>[..]
>> >Actually that is a contradiction - "shallow" is slow (for the same
>> >slope) due to friction (drag) which increase by the square of the
>> >increase in speed. But even then it isn't that simple as the rate of
>> >flow varies from top to bottom and side to side with a laminar flow.
>>
>> See
>> http://services.eng.uts.edu.au/~simonb/jayas%20hyd%20web%20page/Momen.pdf
>> for an explanation which is almost certainly above your head (as per
>> the deep slow flow :-).
>
>If you can't even fathom the issue, don't bother replying with
>irrelevant material. The issue has nothing at all to do with hydraulic
>jump, high jump, long jump or even your jumping to conclusions!
>

This is what you said originally:

  " I don't think that is true at all. Water flows at a constant rate
    irrespective of slope. Think of it this way, a steep descent that
    levels out to a near flat surface. A river that starts on that
    slope would "back up" when it hit the near flat surface and block
    the flow, would it not IF your argument "held water" so to speak"

That was the point I was addressing. The river certainly "backs up"
but it does not block the flow. It merely changes from fast-shallow
flow to slow-deep flow with the point of change marked by a hydraulic
jump of one kind or another.

Eric Stevens

Relevant Pages

  • Re: KRS lake
    ... >>jump, high jump, long jump or even your jumping to conclusions! ... > irrespective of slope. ... > but it does not block the flow. ... It deals also with channel roughness - a factor governing the ...
    (sci.archaeology)
  • Re: require encoding
    ... Protected Mode but still behaves as if in Real Mode until ... the far jump which changes the "flow of execution". ...
    (comp.lang.asm.x86)
  • Re: require encoding
    ... Protected Mode but still behaves as if in Real Mode until ... the far jump which changes the "flow of execution". ...
    (alt.lang.asm)
  • Re: Buying a house, Aluminum Wiring?
    ... 'solid conducter' Al, I'm not a physicist so I don't know why. ... It has to do with what is known as "cold flow". ... When current flows thru the wire, the Al wire heats up slightly and the Al ... aluminum cable jumper cables to jump start a car. ...
    (rec.woodworking)
  • Re: Dove Pier Incident Report
    ... of the tide the ebb runs fast along the river wall to The Terrace, ... encouraging this secondary flow pattern. ... water to bottom water and accept that this can cause a spiralling effect ... The difference between the regimes causing scour or sedimentation lies ...
    (rec.sport.rowing)