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Flow nets are essential tools for visualizing groundwater flow in soils, constructed through a systematic process of trial and error. The construction requires marking boundary conditions, drawing initial flow lines, and refining the mesh to create orthogonal equipotential and flow lines. Understanding the relationship between flow and equipotential lines is crucial in typical boundary scenarios such as submerged boundaries and impermeable material interfaces.
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Sections
References
13.pdfClass Notes
Memorization
What we have learnt
- Flow nets represent contour...
- Equipotential lines are cru...
- Common boundary conditions ...
Final Test
Revision Tests
What we have learnt
- Flow nets represent contours of equal hydraulic head.
- Equipotential lines are crucial for understanding head losses in flow nets.
- Common boundary conditions for flow nets include submerged permeable boundaries and impermeable material boundaries.
Key Concepts
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Term: Flow Net
Definition: A graphical representation detailing the flow of water through soil, showing both flow lines and equipotential lines.
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Term: Equipotential Line
Definition: A line where the hydraulic head is constant; essential for determining the head lost between the flow lines.
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Term: Flow Line
Definition: Lines that represent the path along which water flows; they are tangential to the flow at any point.
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Term: Boundary Conditions
Definition: Constraints that are applied at the boundaries of the flow area; examples include submerged and impermeable boundaries.