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Specific energy in open channel flow

작성자 Uploader : pleiades 작성일 Upload Date: 2017-12-25변경일 Update Date: 2017-12-25조회수 View : 388

In open channel flow, specific energy (E) is the energy length, or head, relative to the channel bottom. Specific energy is expressed in terms of kinetic energy, and potential energy, and internal energy.
The three energy components in Bernoulli\\\'s equation are elevation, pressure and velocity. However, since with open channel flow, the water surface is open to the atmosphere, the pressure term between two points has the same value and is therefore ignored.

E =  h + α*V^(2) / (2*g)

h : Water depth (m)
α : Kinetic energy correction factor (≒ 1.1)
V : Average velocity (m/s)
g : Gravitational acceleration (m/s^2)

*** 참고문헌[References] ***

https://en.wikipedia.org/wiki/Energy%E2%80%93depth_relationship_in_a_rectangular_channel
E = h + α*V^(2) / (2*g)
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변수명 Variable 변수값 Value 변 수 설 명 Description of the variable


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