Hydraulic jump practical part-1


Loss of Kinetic Energy. The velocity of subcritical flow is less than supercritical flow. The depth of subcritical flow is greater than the depth of supercritical flow. Calculation part For discharge= Q= volume/time Q= A * V Q= b * Y1 * V1 Q= b * Y2 * V2 Fr1 = V/ root ( g*y1) loss of enenrgy= (y2-y1)^3 ------------- 4y1*y2 A hydraulic jump is a phenomenon in the science of hydraulics that is frequently observed in open channel flow such as rivers and spillways. When liquid at high velocity discharges into a zone of lower velocity, a rather abrupt rise occurs in the liquid surface. Types of Hydraulic Jumps – Based on Froude's Number: Undular Hydraulic Jump – Froude Number (1 to 3): ... Weak Jump – Froude Number (3 to 6) ... Oscillating Hydraulic Jump – Froude Number (6-20) ... Steady Hydraulic Jump – Froude Number (20 to 80) ... Strong Hydraulic Jump – Froude Number (greater than 80)


This video tells about how to produce the hydraulic jump in an open channel and to calculate the loss of energy due to the creation of the hydraulic jump.

Video link

https://youtu.be/84iVci_VPeI

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Hydraulic jump explanation

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  The demonstration of a hydraulic jump in rectangular open channel part- 2 !! Fluid mechanics -2 What is the hydraulic jump and its use? Industrial. The hydraulic jump is the most commonly used choice of design engineers for energy dissipation below spillways and outlets. A properly designed hydraulic jump can provide for 60-70% energy dissipation of the energy in the basin itself, limiting the damage to structures and the streambed. Types of Hydraulic Jumps – Undular Hydraulic Jump – Weak Jump – Oscillating Hydraulic Jump – Steady Hydraulic Jump – Strong Hydraulic Jump – What does Froude's number mean? The Froude number is a measurement of bulk flow characteristics such as waves, sand bedforms, flow/depth interactions at a cross-section or between boulders. The denominator represents the speed of a small wave on the water surface relative to the speed of the water, called wave celerity. What is the length of a hydraulic jump? In civil engineering, the hydraulic jump is us
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