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Reaction Paper: Floods/1d-Hydrodynamic-Models/theory/hydraulic-Processes

Hydraulic processes pertain to liquid pressure and flow. They are used to determine flood elevations, velocities, and size of flood plains for a range of flood frequencies. The chapter discusses hydrostatic force, flow using the continuity and energy equations, momentum, velocity distribution, and pressure forces in static fluids. It also covers hydrostatic problems and examples. Hydraulic engineers compute hydrostatic forces on submerged surfaces, which equal the product of the surface area and pressure at the surface's centroid. Hydraulic processes transform the distribution of water through natural and human systems over the hydrologic cycle.

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32 views1 page

Reaction Paper: Floods/1d-Hydrodynamic-Models/theory/hydraulic-Processes

Hydraulic processes pertain to liquid pressure and flow. They are used to determine flood elevations, velocities, and size of flood plains for a range of flood frequencies. The chapter discusses hydrostatic force, flow using the continuity and energy equations, momentum, velocity distribution, and pressure forces in static fluids. It also covers hydrostatic problems and examples. Hydraulic engineers compute hydrostatic forces on submerged surfaces, which equal the product of the surface area and pressure at the surface's centroid. Hydraulic processes transform the distribution of water through natural and human systems over the hydrologic cycle.

Uploaded by

Min Min II
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Reaction Paper

Hydraulics pertains to liquid pressure and flow. Hydraulic processes are used to convert a
volume of water moving down a channel. The hydraulic study determines the flood elevations,
velocities and the size of flood plains at each cross section for a range of flood flow frequencies.
The Hydraulic Processes: Flow and Hydrostatic Forces reported by the group three, Mahlima
Mangrar and Samiyah As-saheeda Gayak from the book “Water Resources Engineering” a
second edition book of Larry W. Mays that was published under John Wiley & Sons, Inc. on
2005. They tackled the principle of hydrostatic force and the flow and control volume approach
for hydrosystem. They also include the equation from continuity, the derivation of energy
equation, momentum, velocity distribution and the pressure forces in static fluids. This chapter
covers examples and solving problem with regards to hydrostatic.

Hydraulic engineers have many engineering applications in which they have to compute the
force being exerted on submerged surfaces. The hydrostatic force on any submerged plane
surface is equal to the product of the surface area and the pressure acting at the centroid of the
plane surface.
The group three discussed what hydraulic processes are and it refers to the pressure and flow
system of the water from pipes. The fundamental principles of fluid mechanics including fluid
properties involving mass or weight of water and providing equation for calculation of pressure,
movement and flow of water from pipes. They gave sample exercise for every subtopics being
discuss and explain each solving process.

In the flow of water shear force exists, producing fluid friction. Viscosity is the measure of its
resistance to shear or angular deformation. Elasticity (or compressibility) is important when we
talk about water hammer in the hydraulics of pipe flow. Elasticity of water is related to the
amount of deformation (expansion or contraction) induced by a pressure change. Pressure at a
point is equal in all directions; units of pressure are N/m2 (Pascal), lb/in2 (psi), lb/ft2, feet of
water, and inches of mercury. Gauge pressure uses atmospheric pressure as the datum. Absolute
pressure is the pressure above absolute zero. Vacuum refers to pressure less than atmospheric
pressure.
Hydrosystem processes transform the space and time distribution of water in hydrologic systems
throughout the hydrologic cycle and in natural and human-made hydraulic systems. The
simplified concept of a system is very important in the control volume approach because of the
extreme complexity of hydrosystem

 http://daad.wb.tu-harburg.de/tutorial/flood-probability-assessment/hydrodynamics-of-
floods/1d-hydrodynamic-models/theory/hydraulic-processes/

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