Open channels

The textbook of Open Channel Hydraulics for Engineers, also called Applied Hydraulics, emphasizes the dynamics of the openchannel flow, by attempting to provide a complete framework of the basic equations of motion of the fluid, which are used as building blocks for the treatment of many practical problems. The structure of the document, with seven chapters totally, follows a logical sequence from a description and classification of Fluid Mechanics and Open Channel Flows, as reviewed in Chapter 1. A development of the basic equation of motion for uniform flow is encountered in Chapter 2.
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This paper proposes a 2Dquasi model for simulations of the lateral distribution of flow velocity and of unit water discharge in openchannel sections. The latters are obtained by solving the governing equation, which is derived from the Reynolds equations and allows for taking into account the gravity, bed shear stress, and turbulent diffusion force in calculations. Using the experimental data, a sensitivity analysis of modeling parameters, e.g. Manning coefficient and eddy viscosity was performed firstly.
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In this chapter, the specificenergy concept is introduced and, then, the momentum principle is applied to openchannel flows. The hydraulic jump and its types are defined and classified. This chapter introduces how to determine the direct and submerged hydraulics jump; their characteristics are presented
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The chapter on uniform flow in open channels is basic knowledge required for all hydraulics students. In this chapter, we shall assume the flow to be uniform, unless specified otherwise. This chapter guides students how to determine the rate of discharge, the depth of flow, and the velocity. The slope of the bed and the crosssectional area remain constant over the given length of the channel under the uniformflow conditions. The same holds for the computation of the most economical cross section when designing the channel.
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The subject of Open Channel Hydraulics for Engineers, also called Applied Hydraulics, is a subject required not only for Hydraulic Engineering students but also for other engineering fields involved, such as Construction Engineering, Transportation Engineering and Environmental Engineering. It follows the previous subject named Fluid Mechanics. The knowledge of openchannel hydraulics, which is essential to the design of many hydraulic structures, has made advances by leaps and bounds.
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Linking up with Chapter 2, dealing with uniform flow in open channels, it may be noted that any change in the flow phenomenon (i.e. flow rate, velocity, flow depth, flow area, bed slope do not remain constant) causes the flow to be nonuniform. This chapter will discuss the effect of change in any one of the above quantities, including specific energy, critical depth and slope, and flow types. How to draw water surface profiles will also be introduced.
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(BQ) Part 2 book "Fundamentals of fluid mechanics" has contents: Dimensional analysis, similitude, and modeling; viscous flowin pipes, flow over immersed bodies, openchannel flow, compressible flow, turbomachines.
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(BQ) Part 2 book "Kothandaraman fluid mechanics" has contents: Dimensional analysis, similitude and model testing, boundary layer theory and flow over surfaces, flow in open channels, dynamics of fluid flow, hydraulic turbines, rotodynamic pumps, reciprocating pumps.
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(BQ) Part 2 book "Fluid mechanics" has contents: Approximate solutions of the navier–stokes equation; flow over bodies  Drag and lift; compressible flow; turbomachinery; open channel flow, property tables and charts.
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(BQ) Part 2 book "Fluid mechanics" has contents: Compressible flow, open channel flow, turbomachinery, physical properties of fluids, compressible flow tables, conversion factors, equations of motion in cylindrical coordinates, introduction to EES.
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(BQ) Part 2 book "Fundamentals of fluid mechanics" has contents: Viscous flow in pipes, open channel flow, flow over immersed bodies, flow over immersed bodies, turbomachines (Ebook only)/
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Average depth model has a variety of applications in hydraulic engineering, especially in applications that flow depth is much smaller than the width of the flow. In this method the vertical variation is negligible and the hydraulic variables average integrated from channel bed to the surface free for the vertical axis. in equations arising management, pure hydrostatic pressure is assumed that not really valid in the case of flow in the bed is curved and can not be described curvature effects of the bed.
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The term "transition" is introduced whenever a channel's crosssectional configuration (shape and dimension) changes along its length. Beside it, in the water control design, engineers need to provide for the dissipation of excess kinetic energy possessed by the downstream flow. Formulas for design calculation of transition works and energy dissipators are presented in this chapter
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Lecture Principles of Marketing  Chapter 10 explain why companies use distribution channels and discuss the functions these channels perform, discuss how channel members interact and how they organize to perform the work of the channel, identify the major channel alternatives open to a company, explain how companies select, motivate, and evaluate channel members.
28p allbymyself_06 28012016 23 3 Download

This lecture note is written for undergraduate students who follow the training programs in the fields of Hydraulic, Construction, Transportation and Environmental Engineering. It is assumed that the students have passed a basic course in Fluid Mechanics and are familiar with the basic fluid properties as well as the conservation laws of mass, momentum and energy. However, it may be not unwise to review some important definitions and equations dealt with in the previous course as an aid to memory before starting.......
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After a review of the literature, the author has concluded that the concept of heat transfer was first introduced by the English scientist Sir Isaac Newton in his 1701 paper entitled “Scala Graduum Caloris.”(1) The specific ideas of heat convection and Newton’s Law of Cooling were developed from that paper
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Spillways are familiar hydraulic structures built across a stream to control the water level. This chapter emphasizes the classification of weirs and spillways as well as the application of hydraulic formulas for designing their shape and dimensions.
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This chapter introduces issues concerning unsteady flow, i.e. flow situations in which hydraulic conditions change with time. Many flow phenomena of great importance to the engineer are unsteady in character, and cannot be reduced to steady flow by changing the viewpoint of the observer. The equations of motion are formulated and the method of characteristics is introduced as main part of this chapter. The concept of positive and negative waves and formation of surges are described. Finally, some solutions to unsteady flow equations are introduced in their mathematical concepts.......
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In the recent decades, there has been a growing interest in micro and nanotechnology. The advances in nanotechnology give rise to new applications and new types of materials with unique electromagnetic and mechanical properties. This book is devoted to the modern methods in electrodynamics and acoustics, which have been developed to describe wave propagation in these modern materials and nanodevices.
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For a timely answer to the question of sustainability, or how to provide for future generations, there needs to be shared accounting of our social and physical resources. Supply chain transparency makes it possible to map resource flows and ensure dependable production while avoiding social and environmental problems. Open channels of communications can support a collective effort to account for the impacts of supply chains and engage more people in the invention of longterm solutions, or sustainable design....
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