Analysis and modelling of non-steady flow in pipe and channel networks [[electronic resource] /] / Vinko Jovic

• Autore: Jovic Vinko
• Pubblicazione: Hoboken, : Wiley-Blackwell, 2013
• Descrizione fisica: 1 online resource (545 p.)
• Disciplina: 621.8/672
• Soggetto topico: Pipe - Hydrodynamics; Hydrodynamics
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: ANALYSIS AND MODELLING OF NON-STEADY FLOW IN PIPE AND CHANNEL NETWORKS; Contents; Preface; 1 Hydraulic Networks; 1.1 Finite element technique; 1.1.1 Functional approximations; 1.1.2 Discretization, finite element mesh; 1.1.3 Approximate solution of differential equations; 1.2 Unified hydraulic networks; 1.3 Equation system; 1.3.1 Elemental equations; 1.3.2 Nodal equations; 1.3.3 Fundamental system; 1.4 Boundary conditions; 1.4.1 Natural boundary conditions; 1.4.2 Essential boundary conditions; 1.5 Finite element matrix and vector; Reference; Further reading ; 2 Modelling of Incompressible Fluid Flow 2.1 Steady flow of an incompressible fluid; 2.1.1 Equation of steady flow in pipes; 2.1.2 Subroutine Steady Pipe Mtx; 2.1.3 Algorithms and procedures; 2.1.4 Frontal procedure; 2.1.5 Frontal solution of steady problem; 2.1.6 Steady test example; 2.2 Gradually varied flow in time; 2.2.1 Time-dependent variability; 2.2.2 Quasi non-steady model; 2.2.3 Subroutine Quasi Unsteady Pipe Mtx; 2.2.4 Frontal solution of unsteady problem; 2.2.5 Quasi-unsteady test example; 2.3 Unsteady flow of an incompressible fluid; 2.3.1 Dynamic equation ; 2.3.2 Subroutine Rgd Unsteady Pipe Mtx2.3.3 Incompressible fluid acceleration; 2.3.4 Acceleration test; 2.3.5 Rigid test example; References; Further Reading; 3 Natural Boundary Condition Objects; 3.1 Tank object; 3.1.1 Tank dimensioning; 3.1.2 Tank model; 3.1.3 Tank test examples; 3.2 Storage; 3.2.1 Storage equation; 3.2.2 Fundamental system vector and matrix updating; 3.3 Surge tank; 3.3.1 Surge tank role in the hydropower plant; 3.3.2 Surge tank types; 3.3.3 Equations of oscillations in the supply system; 3.3.4 Cylindrical surge tank ; 3.3.5 Model of a simple surge tank with upper and lower chamber 3.3.6 Differential surge tank model; 3.3.7 Example; 3.4 Vessel; 3.4.1 Simple vessel; 3.4.2 Vessel with air valves; 3.4.3 Vessel model; 3.4.4 Example; 3.5 Air valves; 3.5.1 Air valve positioning; 3.5.2 Air valve model; 3.6 Outlets; 3.6.1 Discharge curves; 3.6.2 Outlet model; Reference; Further reading; 4 Water Hammer - Classic Theory; 4.1 Description of the phenomenon; 4.1.1 Travel of a surge wave following the sudden halt of a locomotive; 4.1.2 Pressure wave propagation after sudden valve closure ; 4.1.3 Pressure increase due to a sudden flow arrest - the Joukowsky water hammer 4.2 Water hammer celerity; 4.2.1 Relative movement of the coordinate system; 4.2.2 Differential pressure and velocity changes at the water hammer front; 4.2.3 Water hammer celerity in circular pipes; 4.3 Water hammer phases; 4.3.1 Sudden flow stop, velocity change v0 ? 0; 4.3.2 Sudden pipe filling, velocity change 0 ? v0; 4.3.3 Sudden filling of blind pipe, velocity change 0 ? v0; 4.3.4 Sudden valve opening; 4.3.5 Sudden forced inflow; 4.4 Under-pressure and column separation; 4.5 Influence of extreme friction ; 4.6 Gradual velocity changes
• Sommario/riassunto: Analysis and Modelling of Non-Steady Flow in Pipe and Channel Networks deals with flows in pipes and channel networks from the standpoints of hydraulics and modelling techniques and methods. These engineering problems occur in the course of the design and construction of hydroenergy plants, water-supply and other systems. In this book, the author presents his experience in solving these problems from the early 1970's to the present day. During this period new methods of solving hydraulic problems have evolved, due to the development of computers and numerical methods. This book
• Titolo autorizzato: Analysis and modelling of non-steady flow in pipe and channel networks
• ISBN: 1-118-53689-4; 1-299-27744-6; 1-118-53687-8
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910139233503321
• Lo trovi qui: Univ. Federico II