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EGL’s & HGL’s. Hydraulic Gradient Line – HGL. Tap a pipe (containing flowing water) with a piezometer. HGL’s – many piezometers. Why does the height decrease in successive piezo tubes?. HGL’s – many piezometers. Energy Gradient Line – EGL.

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Presentation Transcript

Hydraulic gradient line hgl
Hydraulic Gradient Line – HGL

  • Tap a pipe (containing flowing water) with a piezometer


Hgl s many piezometers
HGL’s – many piezometers

Why does the height decrease in successive piezo tubes?



Energy gradient line egl
Energy Gradient Line – EGL

  • Tap a pipe (containing flowing water) with a stagnation tube



Egl vs hgl
EGL vs. HGL

  • What is the difference?

EGL

HGL


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