Investigating the Removal of Hydraulic Cavitation from Pressurized Steel Piping Systems

  • Mohamed Amir ChakerEmail author
  • Ali Triki
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


This paper assessed the branching strategy capacity to mitigate the cavitating flow regime induced into an existing steel piping system. This strategy was based on adding a ramified high or low density polyethylene ((HDPE) or (LDPE)) short penstock to the transient sensitive regions of the existing piping system. The 1-D water-hammer model combined with the Vitkovsky et al. and Kelvin-Voigt formulations was used to describe the hydraulic behavior, along with the fixed grid Method of Characteristics, being used for numerical computations. From the case studied, it was found that such a technique could palliate the cavitating flow regime. In addition, this strategy allowed an acceptable first hydraulic-head peak and crest attenuation. Specifically, positive and negative surge magnitude attenuation was slightly more important for the case of a short penstock made of (LDPE) material than that using an (HDPE) material. Ultimately, it was observed that other factors contributing to the attenuation rate depended upon the short-penstock length and diameter.


Cavitation Design Kelvin-Voigt Plastic LDPE Method of characteristics HDPE Viscoelasticity Vitkovsky 


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© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Department of Mechanics, National Engineering School of SfaxUniversity of SfaxSfaxTunisia
  2. 2.Research Unit: Mechanics Modelling Energy and Materials M2EMGabesTunisia

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