In the present study, the six legged concrete (SLC) elements are placed at the bed of a flume downstream of a chute in different layouts, densities and number of longitudinal rows of SLC elements. Each test was run for different flow conditions (Froude numbers ranged 5.3 to 8.1). During each test, the water surface profile, the roller length and the jump length measured.  Applying the experimen...

This paper presents a brief history of the hydraulic jump and literature review on jumps’ experimental numerical studies. Leonardo da Vinci noticed this phenomenon early on, but it was only later studied by Bidone in 1820. Since beginning 20th century, has received lot attention following development energy dissipater designs stilling basins. The late 1920s 1930s saw many studies researching su...

We consider shallow water flows through a channel with a contraction by experimental and theoretical means. The horizontal channel consists of a sluice gate and an upstream channel of constant width b0 ending in a linear contraction of minimum width bc. Experimentally, we observe upstream steady and moving bores/shocks, and oblique waves in the contraction, as single and multiple steady states,...

In this paper, we describe the nonlinear outcome of spiral shocks in protoplan-etary disks. Spiral shocks, for most protoplanetary disk conditions, create a loss of vertical force balance in the post-shock region and result in rapid expansion of the gas perpendicular to the disk midplane. This expansion has characteristics similar to hydraulic-jumps, which occur in incompressible fluids. We pre...

Intense turbulence develops in the two-phase flow region of hydraulic jump, with a broad range of turbulent length and time scales. Detailed air–water flow measurements using intrusive phase-detection probes enabled turbulence characterisation of the bubbly flow, although the phenomenon is not a truly random process because of the existence of low-frequency, pseudo-periodic fluctuating motion i...

Abstract A hydraulic-stepped spillway was designed using an aeration basin to provide aerated flow the stepped utilizing a hydraulic jump. However, through entrance of might separate from first step top and impact downstream steps at large unit discharge, causing so-called jet flow. new experimental study conducted better understand in hydraulic-jump-stepped with comparisons conventional spillw...