The length of the hydraulic jump on the basis of physical and numerical modeling
Journal Title: Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation - Year 2018, Vol 50, Issue 1
Abstract
The outcomes of physical and numerical modeling of the sluice gate outfl ow are presented. The measured velocity distributions in verticals of a physical model were compared with results of numerical modeling, obtained using ANSYS Fluent software. The research goal was verifi cation of suitability of the computational fl uid dynamic (CFD) approach in determination of the hydraulic jump length at the outfl ow of the fl ow control structure. Studies were performed for the model of the sluice gate and stilling basin with two setups of baffl e blocks: in one and two rows. The jump lengths were estimated by an analysis of vertical velocity profi les at the outfl ow. Two rows of baffl e blocks in the stilling basin allowed to reduce the length of the hydraulic jump by 5–10%, comparing to the length with the single row of blocks. The computational fl uid dynamic approach underestimated the length of the hydraulic jump by 4–7%, comparing to the physical model.
Authors and Affiliations
JANUSZ URBAŃSKI, PIOTR SIWICKI, ADAM KICZKO, MARCIN KRUKOWSKI
Keywords
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- EP ID EP593702
- DOI 10.2478/sggw-2018-0003
- Views 139
- Downloads 0
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