@article { author = {Khezri, N. and Zarrati, A.R. and Golzari, F.}, title = {Calculation of Pressure Distribution over Flip Buckets}, journal = {Journal of Hydraulics}, volume = {3}, number = {4}, pages = {39-52}, year = {2009}, publisher = {Iranian Hydraulic Association}, issn = {2345-4237}, eissn = {2645-8063}, doi = {10.30482/jhyd.2009.85481}, abstract = {Flip buckets are used as terminal structures at the end of chute spillways or bottom outlets. Flow aftera bucket is issued in the form of a jet to a location far from the bucket where it impacts the river bedand forms a plunge pool. Energy of high speed flow is dissipated in the plunge pool and flow entersthe river with a low velocity. Design of buckets and calculation of dynamic pressures over a bucket isusually done by physical model studies or design charts based on field measurements. Physical modelstudies are expensive and modification of the model takes time and is also difficult. Design charts arealso developed based on limited field measurements. In the present study dynamic pressures over flipbuckets are calculated using a numerical model. To simulate the free surface high speed flow overbuckets, FLUENT computer code is employed. The numerical model was verified using existingexperimental data. Free surface location, as well as pressure distribution over buckets were comparedwith measurements and very good agreement was obtained. The effect of Froude number and ratio offlow depth to bucket radius was also investigated. The results of analytical models for pressuredistribution over buckets were also analyzed, discussed and compared with numerical data.}, keywords = {}, title_fa = {محاسبه توزیع فشار بر روی پرتاب کننده جامی}, abstract_fa = {}, keywords_fa = {}, url = {https://jhyd.iha.ir/article_85481.html}, eprint = {https://jhyd.iha.ir/article_85481_73f724e4ad36346954137788fec798bd.pdf} }