Modelling and Visual Basic Programming for Hydraulic Jumps

Abstract

This chapter investigated about modeling the rise in water level in a flow, especially, in open channels as a result of abrupt change in flow regimes from unstable shooting flow to a relatively stable streaming flow. A hydraulic jump is characterised by the development of large-scale turbulence, energy dissipation and air entrainment. For the best profit maximisation, the time- and money-wasting manual computation of hydraulic engineering issues that require numerous iterations was modelled. Hydraulic jumps is a phenomenon that occurs in water moving and encounters energy change (energy loss )due to change in one or more of velocity, cross section, depth etc of the water or passage channel. The process combines energy and momentum equations, and the mathematical model calculated the hydraulic jump's technical properties. Through the use of the visual basic programming language, the model's equations were simulated. A case study on the model showed that the programme runs perfectly and comparison of the results of the experiments with the manual results showed that both gave same result of  The results of the experiments enhanced irrigation, water supply, mix chemicals for water purification, aerate water and waste water for water treatment and removal of air bubbles in supply lines. The energy loss is influenced by the depth and width of the channel. The lower the depth the higher the head loss and the higher the depth, the lower the head loss.

The programme is advised for use in engineering services analysis, design, and consulting.