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Über dieses Buch

Gradually-varied flow (GVF) is a steady non-uniform flow in an open channel with gradual changes in its water surface elevation. The evaluation of GVF profiles under a specific flow discharge is very important in hydraulic engineering. This book proposes a novel approach to analytically solve the GVF profiles by using the direct integration and Gaussian hypergeometric function. Both normal-depth- and critical-depth-based dimensionless GVF profiles are presented. The novel approach has laid the foundation to compute at one sweep the GVF profiles in a series of sustaining and adverse channels, which may have horizontal slopes sandwiched in between them.

Inhaltsverzeichnis

Chapter 1. Basic Equations for the Gradually-Varied Flow

The one-dimensional gradually-varied flow (GVF) is a steady non-uniform flow in a prismatic channel with gradual changes in its water surface elevation.

Chyan-Deng Jan

Chapter 2. Conventional Integral Solutions of the GVF Equation

The gradually-varied flow (GVF) equation for flow in open channels is normalized using the normal depth,

hn

, before it can be analytically solved by the direct integration method.

Chyan-Deng Jan

Chapter 3. Normal-Depth-Based Dimensionless GVF Solutions Using the Gaussian Hypergeometric Function

The literature survey as shown in Chapter 2 recaps two general ways (i.e., VFF-based and ETF-based methods) to obtain the exact solutions of the GVF equation through the two integrals of a proper fraction.

Chyan-Deng Jan

Chapter 4. Critical-Depth-Based Dimensionless GVF Solutions Using the GHF

As mentioned in the previous chapters, many hydraulic engineering works involve the computation of surface profiles of gradually-varied flow (GVF) that is a steady non-uniform flow in an open channel with gradually changes in its water surface elevation.

Chyan-Deng Jan

Chapter 5. Analysis of the GHF-Based Solutions of $$h_c$$ -Based GVF Profiles

The equation of one-dimensional gradually-varied flow (GVF) in sustaining and non-sustaining open channels is normalized using the critical depth,

$$h_c$$

, and then solved by the direct integration method with the use of the Gaussian hypergeometric functions (GHF), as shown in Chap.

4

.

Chyan-Deng Jan

Backmatter

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