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Open channel mean flow velocity formula ( Bazin formula )

작성자 Uploader : pangaea 작성일 Upload Date: 2018-09-12변경일 Update Date: 2018-09-12조회수 View : 357

Open channel mean flow velocity formula ( Bazin formula )

Bazin proposed the following formula to estimate the Chezy coefficient in the Chezy's mean flow velocity formula.

Ch = 87/(1+γ/(R^(1/2)))

Inserting the above into the Chezy formula, the formula shown on the left is derived.

γ is the Bazin roughness coefficient suggested by Bazin on the basis of experiments.

γ roughness condition
---- ------------------------------------
0.06 board surface cut by planes
0.16 common board surface, cutted rock surface, bricks
0.30 concrete surface
0.46 chipped stone wall
0.85 sandy bed of regular cross section
1.30 channel of common ground
1.75 rivers, channels having large resistance

*** 참고문헌[References] ***

V = (87/(1+γ/(R^(1/2)))) * (R*i)^(1/2)


변수명 Variable	변수값 Value	변 수 설 명 Description of the variable

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현재 위치

Open channel mean flow velocity formula ( Bazin formula )

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