Matches in SemOpenAlex for { <https://semopenalex.org/work/W4306376979> ?p ?o ?g. }
Showing items 1 to 58 of
58
with 100 items per page.
- W4306376979 endingPage "42" @default.
- W4306376979 startingPage "24" @default.
- W4306376979 abstract "A vertical drop or free overfall is a common feature in both natural and artificial channels. Natural drops are formed by river bed erosion while artificial drops are built in irrigation systems to reduce the channel slope to designed slope. Greater energy dissipation drops occur in stepped spillways. The greater energy dissipation is caused by mixing of the jet with the pool at the downstream end of each drop. As a result, it will be the cause of the reduction in the energy dissipater that is generally provided in toe of drops and stepped spillways. In this study, the energy dissipation in straight drops is investigated by fabricating physical models. Effective geometric and hydraulic parameters are determined and three drops with different heights were constructed from plexiglas. These physical models were installed in two existing flumes in the hydraulic laboratory at university of Tabriz, Iran. Several runs of physical models were performed to determine the essential parameters for determining energy dissipation. The results reveal that energy dissipation in drops is affected by drop height and discharge. Predicted relative energy dissipation varied from 10.0% (for yc/h=0.94) to 94.3% (for yc/h=0.02). Energy loss caused by a drop is mainly due to the mixing of the jet with the pool behind the jet that causes air bubble entrainment in the flow. A statistical model was developed to predict the energy dissipation in drops that reveal nonlinear correlation between effective parameters. Comparisons between this study and results of Moore, Rand, White, Rajaratnam and Chamani, showed that White's model overestimates the energy dissipation in drops and Rand's model underestimates the energy dissipation in drops. The others can predict the energy dissipation similar to the proposed statistical model. The length of the downstream stilling basin predicted by White is 20% smaller than the others." @default.
- W4306376979 created "2022-10-17" @default.
- W4306376979 creator A5009861962 @default.
- W4306376979 creator A5038998119 @default.
- W4306376979 date "2022-10-11" @default.
- W4306376979 modified "2023-09-28" @default.
- W4306376979 title "Energy Loss at the Base of a Free Straight Drop Spillway" @default.
- W4306376979 doi "https://doi.org/10.9734/bpi/costr/v6/4047a" @default.
- W4306376979 hasPublicationYear "2022" @default.
- W4306376979 type Work @default.
- W4306376979 citedByCount "0" @default.
- W4306376979 crossrefType "book-chapter" @default.
- W4306376979 hasAuthorship W4306376979A5009861962 @default.
- W4306376979 hasAuthorship W4306376979A5038998119 @default.
- W4306376979 hasConcept C121332964 @default.
- W4306376979 hasConcept C127413603 @default.
- W4306376979 hasConcept C135402231 @default.
- W4306376979 hasConcept C135889238 @default.
- W4306376979 hasConcept C187320778 @default.
- W4306376979 hasConcept C2779506771 @default.
- W4306376979 hasConcept C2781345722 @default.
- W4306376979 hasConcept C39432304 @default.
- W4306376979 hasConcept C57879066 @default.
- W4306376979 hasConcept C74650414 @default.
- W4306376979 hasConcept C78519656 @default.
- W4306376979 hasConcept C8038842 @default.
- W4306376979 hasConcept C97355855 @default.
- W4306376979 hasConceptScore W4306376979C121332964 @default.
- W4306376979 hasConceptScore W4306376979C127413603 @default.
- W4306376979 hasConceptScore W4306376979C135402231 @default.
- W4306376979 hasConceptScore W4306376979C135889238 @default.
- W4306376979 hasConceptScore W4306376979C187320778 @default.
- W4306376979 hasConceptScore W4306376979C2779506771 @default.
- W4306376979 hasConceptScore W4306376979C2781345722 @default.
- W4306376979 hasConceptScore W4306376979C39432304 @default.
- W4306376979 hasConceptScore W4306376979C57879066 @default.
- W4306376979 hasConceptScore W4306376979C74650414 @default.
- W4306376979 hasConceptScore W4306376979C78519656 @default.
- W4306376979 hasConceptScore W4306376979C8038842 @default.
- W4306376979 hasConceptScore W4306376979C97355855 @default.
- W4306376979 hasLocation W43063769791 @default.
- W4306376979 hasOpenAccess W4306376979 @default.
- W4306376979 hasPrimaryLocation W43063769791 @default.
- W4306376979 hasRelatedWork W1965260493 @default.
- W4306376979 hasRelatedWork W2081120056 @default.
- W4306376979 hasRelatedWork W2093496299 @default.
- W4306376979 hasRelatedWork W2128069717 @default.
- W4306376979 hasRelatedWork W2335055242 @default.
- W4306376979 hasRelatedWork W3090255086 @default.
- W4306376979 hasRelatedWork W3139887875 @default.
- W4306376979 hasRelatedWork W3196146354 @default.
- W4306376979 hasRelatedWork W4205625408 @default.
- W4306376979 hasRelatedWork W4306376979 @default.
- W4306376979 isParatext "false" @default.
- W4306376979 isRetracted "false" @default.
- W4306376979 workType "book-chapter" @default.