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Q » What is hydraulic grade line (HGL)?
03 Nov, 2025
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A » The hydraulic grade line (HGL) represents the level to which water would rise in a piezometer tube connected to a pipeline or open channel. It is a key concept in fluid dynamics used to analyze fluid flow in systems, accounting for pressure and gravitational effects. The HGL helps engineers design efficient water distribution and purification systems by illustrating potential energy changes along the flow path.
03 Nov, 2025
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