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Use of Baffles in Open Channel Expansion
Laboratory tests were conducted to determine the efficacy of using baffle piers in an open-channel outlet transition with flow at sub-critical velocity throughout. It was found that the use of such baffles will substantially reduce the structure length required to achieve a given velocity reduction. A triangular three-baffle arrangement will permit flow expansion, without separation, in a straight walled transition with a side-wall flare as rapid as 1 in 4. The head loss in such an outlet is approximately 0.8 times the theoretical Borda head loss for an abrupt expansion. Possible useful applications of the principle include diverging transitions for flumes, siphons, and culverts.
Use of Baffles in Open Channel Expansion
Laboratory tests were conducted to determine the efficacy of using baffle piers in an open-channel outlet transition with flow at sub-critical velocity throughout. It was found that the use of such baffles will substantially reduce the structure length required to achieve a given velocity reduction. A triangular three-baffle arrangement will permit flow expansion, without separation, in a straight walled transition with a side-wall flare as rapid as 1 in 4. The head loss in such an outlet is approximately 0.8 times the theoretical Borda head loss for an abrupt expansion. Possible useful applications of the principle include diverging transitions for flumes, siphons, and culverts.
Use of Baffles in Open Channel Expansion
Smith, Clifford D. (author) / Yu, James N. G. (author)
Journal of the Hydraulics Division ; 92 ; 1-17
2021-01-01
171966-01-01 pages
Article (Journal)
Electronic Resource
Unknown
Discussion of “Use of Baffles in Open Channel Expansion”
| ASCE | 2021
Discussion of “Use of Baffles in Open Channel Expansion”
| ASCE | 2021
Closure to “Use of Baffles in Open Channel Expansion”
| ASCE | 2021
Use of baffles in open channel expansions
| Engineering Index Backfile | 1966
Closure to “Use of Baffles in Open Channel Expansions”
| ASCE | 2021