Hydraulic Gradient Line And Total Energy Line
Hydraulic Gradient Line And Total Energy Line are the graphical representation for the longitudinal variation in piezometric head and total head.
Consider two points 1 and 2 in a pipe line having 'l' meters apart with the reference to this potential datum line,z1,p1/w and v1^2/2g represent datum head,pressure head,velocity head at section 1. similarly the corresponding values at 2.
The some of potential and pressure head.ie,[z+p/w] at any point is called the piezometric head.if a line joining the piezometric levels at varies points,the lines so obtain is called hydraulic gradient line (HGL)
The some of potential head,pressure head and velocity head is known as total head.
If a line joining the total heads at various points,the line so obtained is called total energy gradient line.
Consider two points 1 and 2 in a pipe line having 'l' meters apart with the reference to this potential datum line,z1,p1/w and v1^2/2g represent datum head,pressure head,velocity head at section 1. similarly the corresponding values at 2.
The some of potential and pressure head.ie,[z+p/w] at any point is called the piezometric head.if a line joining the piezometric levels at varies points,the lines so obtain is called hydraulic gradient line (HGL)
The some of potential head,pressure head and velocity head is known as total head.
If a line joining the total heads at various points,the line so obtained is called total energy gradient line.
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