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Multi-phase flows are part of our natural environment such as tornadoes, typhoons, air and water pollution or volcano activities as well as of industrial technology such as power plants, combustion engines, propulsion systems, or chemical and biological industry. The industrial use of multi-phase systems requires analytical and numerical strategies for predicting their behavior. In its second extended edition this monograph contains theory, methods and practical experience for describing complex transient multi-phase processes in arbitrary geometrical configurations, providing a systematic presentation of the theory and practice of numerical multi-phase fluid dynamics. In the present first volume the fundamentals of multiphase dynamics are provided, as well as various interactive multimedia demonstrations on an accompanying CD-ROM. This second edition includes various new material such as a new chapter devoted to the mathematical tools and types of systems of partial differential equations, a completely rewritten chapter presenting the derivatives for the equations of state, as well as various extensions and improvements in all the other book chapters, including additional experiments and movies in the accompanying CD.

Engineering. --- Fluids. --- Thermodynamics. --- Computational intelligence. --- Complexity, Computational. --- Fluid mechanics. --- Engineering Fluid Dynamics. --- Fluid- and Aerodynamics. --- Computational Intelligence. --- Complexity. --- Hydromechanics --- Continuum mechanics --- Complexity, Computational --- Electronic data processing --- Machine theory --- Intelligence, Computational --- Artificial intelligence --- Soft computing --- Chemistry, Physical and theoretical --- Dynamics --- Mechanics --- Physics --- Heat --- Heat-engines --- Quantum theory --- Hydraulics --- Hydrostatics --- Permeability --- Construction --- Industrial arts --- Technology --- Multiphase flow --- Fluid dynamics. --- Mathematical models. --- Fluid mechanics --- Hydraulic engineering. --- Engineering, Hydraulic --- Engineering --- Shore protection --- Computational complexity.

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This Volume 5 of the successful book package "Multiphase Flow Dynamics" is devoted to nuclear thermal hydraulics which is a substantial part of nuclear reactor safety. It provides knowledge and mathematical tools for adequate description of the process of transferring the fission heat released in materials due to nuclear reactions into its environment. It step by step introduces into the heat release inside the fuel, temperature fields in the fuels, the "simple" boiling flow in a pipe described using ideas of different complexity like equilibrium, non equilibrium, homogeneity, non homogeneity. Then the "simple" three-fluid boiling flow in a pipe is described by gradually involving the mechanisms like entrainment and deposition, dynamic fragmentation, collisions, coalescence, turbulence. All heat transfer mechanisms are introduced gradually discussing their uncertainty. Different techniques are introduced like boundary layer treatments or integral methods. Comparisons with experimental data at each step demonstrate the success of the different ideas and models. After an introduction of the design of the reactor pressure vessels for pressurized and boiling water reactors the accuracy of the modern methods is demonstrated using large number of experimental data sets for steady and transient flows in heated bundles. Starting with single pipe boiling going through boiling in the rod bundles the analysis of complete vessel including the reactor is finally demonstrated. Then a powerful method for nonlinear stability analysis of flow boiling and condensation is introduced. Models are presented and their accuracies are investigated for describing critical multiphase flow at different level of complexity. Therefore the book presents a complete coverage of the modern Nuclear Thermal Hydrodynamics. This present third edition includes various updates, extensions, improvements and corrections.  .

Engineering. --- Engineering Fluid Dynamics. --- Engineering Thermodynamics, Heat and Mass Transfer. --- Fluid- and Aerodynamics. --- Thermodynamics. --- Hydraulic engineering. --- Ingénierie --- Thermodynamique --- Technologie hydraulique --- Engineering & Applied Sciences --- Civil & Environmental Engineering --- Civil Engineering --- Applied Mathematics --- Thermal hydraulics. --- Multiphase flow. --- Nuclear reactors --- Fluid dynamics. --- Flow, Multi-phase --- Flow, Multicomponent --- Flow, Multiphase --- Flow, Polyphase --- Multi-phase flow --- Multicomponent flow --- Polyphase flow --- Fluids. --- Heat engineering. --- Heat transfer. --- Mass transfer. --- Fluid mechanics. --- Fluid dynamics --- Chemistry, Physical and theoretical --- Dynamics --- Mechanics --- Physics --- Heat --- Heat-engines --- Quantum theory --- Construction --- Industrial arts --- Technology --- Engineering, Hydraulic --- Engineering --- Fluid mechanics --- Hydraulics --- Shore protection --- Hydrostatics --- Permeability --- Mass transport (Physics) --- Thermodynamics --- Transport theory --- Heat transfer --- Thermal transfer --- Transmission of heat --- Energy transfer --- Mechanical engineering --- Hydromechanics --- Continuum mechanics

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Volume 4 of the successful book package "Multiphase Flow" is devoted to nuclear thermal hydraulics which is a substantial part of nuclear reactor safety. It provides knowledge and mathematical tools for adequate description of the process of transferring the fission heat released in materials due to nuclear reactions into its environment. It step by step introduces into the heat release inside the fuel, temperature fields in the fuels, the "simple" boiling flow in a pipe described using ideas of different complexity like equilibrium, non equilibrium, homogeneity, non homogeneity. Then the "simple" three-fluid boiling flow in a pipe is described by gradually involving the mechanisms like entrainment and deposition, dynamic fragmentation, collisions, coalescence, turbulence. All heat transfer mechanisms are introduced gradually discussing their uncertainty. Different techniques are introduced like boundary layer treatments or integral methods. Comparisons with experimental data at each step demonstrate the success of the different ideas and models. After an introduction into the design of the reactor pressure vessels for pressurized and boiling water reactors the accuracy of the modern methods is demonstrated using large number of experimental data sets for steady and transient flows in heated bundles. Starting with single pipe boiling going through boiling in a rod bundles the analysis of complete vessel including the reactor is finally demonstrated. Then powerful method for non-linear stability analysis of flow boiling and condensation is introduced. Models are presented and their accuracies are investigated for describing critical multiphase flow at different level of complexity. Basics of designing of steam generators, moisture separators and emergency condensers are presented. Methods for analyzing a complex pipe network flows with components like pumps, valves etc. are also presented. Methods for analysis of important aspects of the severe accidents like melt-water interactions, external cooling and cooling of layers of molten nuclear reactor material are presented. Valuable sets of thermo-physical and transport properties for severe accident analysis are presented for the following materials: uranium dioxide, zirconium dioxide, stainless steel, zirconium, aluminum, aluminum oxide, silicon dioxide, iron oxide, molybdenum, boron oxide, reactor corium, sodium, lead, bismuth, and lead-bismuth eutectic alloy. The emphasis is on the complete and consistent thermo dynamical sets of analytical approximations appropriate for computational analysis. Therefore the book presents a complete coverage of the modern Nuclear Thermal Hydrodynamics.

Computational fluid dynamics. --- Multiphase flow -- Mathematical models. --- Two-phase flow. --- Civil Engineering --- Nuclear Engineering --- Civil & Environmental Engineering --- Mechanical Engineering --- Engineering & Applied Sciences --- Engineering. --- Multiphase flow --- Mathematical models. --- Construction --- Nuclear energy. --- Fluids. --- Thermodynamics. --- Computational intelligence. --- Fluid mechanics. --- Nuclear engineering. --- Engineering Fluid Dynamics. --- Nuclear Engineering. --- Fluid- and Aerodynamics. --- Computational Intelligence. --- Nuclear Energy. --- Industrial arts --- Technology --- Atomic power engineering --- Engineering --- Nuclear physics --- Nuclear energy --- Hydromechanics --- Continuum mechanics --- Intelligence, Computational --- Artificial intelligence --- Soft computing --- Chemistry, Physical and theoretical --- Dynamics --- Mechanics --- Physics --- Heat --- Heat-engines --- Quantum theory --- Hydraulics --- Hydrostatics --- Permeability --- Atomic energy --- Atomic power --- Energy, Atomic --- Energy, Nuclear --- Nuclear power --- Power, Atomic --- Power, Nuclear --- Force and energy --- Power resources --- Nuclear engineering --- Nuclear facilities --- Nuclear power plants --- Hydraulic engineering. --- Engineering, Hydraulic --- Fluid mechanics --- Shore protection

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The present Volume 4 of the successful monograh package “Multiphase Flow Dynamics”is devoted to selected Chapters of the multiphase fluid dynamics that are important for practical applications but did not find place in the previous volumes. The state of the art of the turbulence modeling in multiphase flows is presented. As introduction, some basics of the single phase boundary layer theory including some important scales and flow oscillation characteristics in pipes and rod bundles are presented. Then the scales characterizing the dispersed flow systems are presented. The description of the turbulence is provided at different level of complexity: simple algebraic models for eddy viscosity, simple algebraic models based on the Boussinesq hypothesis, modification of the boundary layer share due to modification of the bulk turbulence, modification of the boundary layer share due to nucleate boiling. The role of the following forces on the mathematical description of turbulent flows is discussed: the lift force, the lubrication force in the wall boundary layer, and the dispersion force. A pragmatic generalization of the k-eps models for continuous velocity field is proposed containing flows in large volumes and flows in porous structures. A Methods of how to derive source and sinks terms for multiphase k-eps models is presented. A set of 13 single- and two phase benchmarks for verification of k-eps models in system computer codes are provided and reproduced with the IVA computer code as an example of the application of the theory. This methodology is intended to help other engineers and scientists to introduce this technology step-by-step in their own engineering practice. A systematic set of internally consistent state equations for diesel fuel gas and liquid valid in broad range of changing pressure and temperature is provided. This new second edition includes various updates, extensions, improvements and corrections.  .

Heat -- Transmission. --- Multiphase flow -- Mathematical models. --- Nuclear engineering. --- Mechanical Engineering --- Civil & Environmental Engineering --- Engineering & Applied Sciences --- Civil Engineering --- Nuclear Engineering --- Turbulence. --- Gasoline --- Diesel fuels. --- Absorption and adsorption. --- Diesel motor --- Diesel oil --- Gas (Gasoline) --- Petrol --- Engineering. --- Fluids. --- Thermodynamics. --- Heat engineering. --- Heat transfer. --- Mass transfer. --- Fluid mechanics. --- Engineering Fluid Dynamics. --- Engineering Thermodynamics, Heat and Mass Transfer. --- Fluid- and Aerodynamics. --- Motor fuels --- Liquid fuels --- Petroleum products --- Flow, Turbulent --- Turbulent flow --- Fluid dynamics --- Fuel

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Multi-phase flows are part of our natural environment such as tornadoes, typhoons, air and water pollution and volcanic activities as well as part of industrial technology such as power plants, combustion engines, propulsion systems, or chemical and biological industry. The industrial use of multi-phase systems requires analytical and numerical strategies for predicting their behavior. .In its fourth extended edition the successful monograph package “Multiphase Flow Daynmics” contains theory, methods and practical experience for describing complex transient multi-phase processes in arbitrary geometrical configurations, providing a systematic presentation of the theory and practice of numerical multi-phase fluid dynamics. In the present second volume the methods for describing the mechanical interactions in multiphase dynamics are provided. This fourth edition includes various updates, extensions, improvements and corrections.   "The literature in the field of multiphase flows is numerous. Therefore, it is very important to have a comprehensive and systematic overview including useful numerical methods. The volumes have the character of a handbook and accomplish this function excellently. The models are described in detail and a great number of comprehensive examples and some cases useful for testing numerical solutions are included. These two volumes are very useful for scientists and practicing engineers in the fields of technical thermodynamics, chemical engineering, fluid mechanics, and for mathematicians with interest in technical problems. Besides, they can give a good overview of the dynamically developing, complex field of knowledge to students. This monograph is highly recommended,”   BERND PLATZER, ZAAM.

Heat -- Transmission. --- Multiphase flow -- Mathematical models. --- Nuclear engineering. --- Civil & Environmental Engineering --- Engineering & Applied Sciences --- Civil Engineering --- Multiphase flow --- Mathematical models. --- Engineering. --- Fluids. --- Thermodynamics. --- Heat engineering. --- Heat transfer. --- Mass transfer. --- Fluid mechanics. --- Engineering Fluid Dynamics. --- Engineering Thermodynamics, Heat and Mass Transfer. --- Fluid- and Aerodynamics.