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Wind induced waves in narrow irrigation canals

by Philip_Crawfor
Tags: canal, induced, irrigation, narrow, runup, wave, waves, wind
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Philip_Crawfor
#1
Feb2-14, 09:17 PM
P: 1
Hi,

We are trying to estimate the likely maximum wave generated from wind blowing along an irrigation canal. We will subsequently estimate runup and the required freeboard to prevent overtopping.

Our canal is ~ 5m deep, has 1:2 side-slopes and a 4.6m wide base. The canal is aligned with the prevalent wind for ~8 km but within this reach there are a number of significant kinks.

Currently we are using wave theory for dams / shore protection but these assume wide water bodies. Does anyone know how to quantify the wave height for a narrow canal? I would assume wave generation to be considerably less for a water body that is narrow like a canal.

We are unable to find any research on this topic. Any advice would be greatly appreciated.
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SteamKing
#2
Feb3-14, 01:49 AM
Emeritus
Sci Advisor
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Thanks
PF Gold
P: 6,525
You can start with these studies and design standards:

http://www.usbr.gov/pmts/hydraulics_...YD/HYD-465.pdf

http://www.usbr.gov/pn/snakeriver/la...standards3.pdf


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