» Research Note « Dimensionless Longitudinal Profile of Free Hydraulic Jump

Document Type : Technical Note

Authors

1 PhD Candidate of hydraulic structures, Dept. of Irrigataion and Reclamation Engineering, , Faculty of Agriculture and Engineering Technology, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

2 Professor, Dept. of Irrigataion and Reclamation Engineering, Faculty of Agriculture and Engineering Technology, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

Abstract

The longitudinal profile of hydraulic jump is the main factor in the design of stilling basin side walls and its bottom thickness. Therefore, the study of jump profile is of great interest. Researchers have developed several methods for jump profile prediction, but in practice there are some parameters in these methods that make their measurement difficult. In this study, a new simple equation has been developed for prediction of hydraulic jump profile with the mean error of 5.08%. The length of hydraulic jump has been used as non-dimensionalization factor in this equation. The comparison of the new equation with the previous studies showed good agreement in a wide range of Froude numbers, from 2.0 to 11.3.

Keywords

References

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History

  • Receive Date: 21 April 2015
  • Revise Date: 18 April 2016
  • Accept Date: 28 May 2016

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