Open channel flows

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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(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 "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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(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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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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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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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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(bq) part 2 book "introduction to fluid mechanics" has contents: elements of flow visualization and flow structure, governing equations of fluid dynamics, analysis of incompressible flow, flow in pipes and ducts, external flow, open channel flow.
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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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part 2 book “fluid mechanics for engineers in si units” has ontents: flow in closed conduits, turbomachines, flow in open channels, drag and lift, boundarylayer flow, compressible flow, units and conversion factors.
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A linear quadratic controller based algorithm was developed for simulating the dynamics of a singlereach irrigation canal with a channel junction. Using the concepts of feedback control theory, an expression for an upstream gate opening of an irrigation canal reach with a channel junction operated based upon a constantlevel control was obtained.
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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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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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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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A linearlike discretetime fuzzy controller was designed to control and stabilize a singlepool irrigation canal. Saint Venant equations for openchannel flow were linearized using the Taylor series and a finitedifference approximation of the original nonlinear partial differential equations.
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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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