UNIFORM FLOW
velocity,C/S area and depth remains constant
Define uniform flow.
open channel is a passage in which liquid will flows
what do you mean be open channel flow
most economical channel is a channel in which the perimeter should be minimum
what do mean most economical channel section
velocity per unit area
what is specific energy
froud's number is equal to one
what is critical flow
maximum discharge can achive
natural,artificial,steady,unsteady,uniform and non uniform
classifications of open channel flow
rectangular,trapezoidal and triangular
most economical channel sections
E=Y+V2/2g
specific energy equation
reduce the rate of flow of discharge and specific energy
critical flow effect
in man made channels, irrigation channels depth should be minimum,cross sectional area should be minimum
where we can able to achieve uniform flow
steady-velocity depth constant
unsteady-velocity depth varies
uniform-c/s area same
natural- naturally made
artificial- man made
how do you classified open channels
rectangular-d/2
triangular-d/2
trapezoidal-d/3
depth for most economical channel sections
x axis- specific energy
y axis -depth
specific energy curve
one
critical flow value