Computational Methods in Multiphase Flow
WIT Press (Verlag)
978-1-84564-188-7 (ISBN)
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Together with turbulence, multiphase flow remains one of the most challenging areas of computational mechanics and experimental methods and numerous problems remain unsolved to date. Multiphase flows are found in all areas of technology, at all length scales and flow regimes. The fluids involved can be compressible or incompressible, linear or nonlinear. Because of the complexity of the problems, it is often essential to utilize advanced computational and experimental methods to solve the complex equations that describe them. Challenges in these simulations include modelling and tracking interfaces, dealing with multiple length scales, modelling nonlinear fluids, treating drop breakup and coalescence, characterizing phase structures, and many others. Experimental techniques, although expensive and difficult to perform, are essential to validate models.This book contains papers presented at the Fifth International Conference on Computational Methods in Multiphase Flow, which are grouped into the following topics: Multiphase Flow Simulation; Interaction of Gas, Liquids and Solids; Turbulent Flow; Environmental Multiphase Flow; Bubble and Drop Dynamics; Flow in Porous Media; Heat Transfer; Image Processing; Interfacial Behaviour.
Section 1: Multiphase flow simulation 3D Eulerian simulation of a gas-solid bubbling fluidized bed: assessment of drag coefficient correlations; Computational and experimental methods for the on-line measurement of the apparent viscosity of a crystal suspension; Two-phase flow modelling within expansion and contraction singularities; Numerical simulation of gas-solid flow in ducts by CFD techniques; Modelling of solidification of binary fluids with non-linear viscosity models; A simulation of the coupled problem of magnetohydrodynamics and a free surface for liquid metals; Ammonia concentration analysis for the steam condenser by combining two phase flow CFD simulation with condensation and process simulation; An approach to the prediction of wax and asphaltene deposition in a pipeline based on Couette device experimental data; Large amplitude waves in a slug tracking scheme; Numerical simulation of an intermediate sized bubble rising in a vertical pipe; Modelling of stratified two phase flows using an interfacial area density model; Multi-phase mixture modelling of nucleate boiling applied to engine coolant flows; On the application of Mesoscopic Eulerian Formalism to modulation of turbulence by solid phase; VOF-based simulation of conjugate mass transfer from freely moving fluid particles; Computational fluid dynamic as a feature to understand the heat and mass transfer in a vacuum tower; Understanding segregation and mixing effects in a riser using the quadrature method of moments; Numerical simulation of heavy oil flows in pipes using the core-annular flow technique; Simulation of flow and modelling the residence time distribution in a continuous two impinging liquid-liquid streams reactor using the Monte Carlo Technique Section 2: Interaction of gas, liquids and solids Vortex study on a hydraulic model of Godar-e-Landar Dam and Hydropower Plant; Minimum fluidization velocity, bubble behaviour and pressure drop in fluidized beds with a range of particle sizes Section 3: Turbulent flow Mathematical modelling on particle diffusion in fluidised beds and dense turbulent two-phase flows; A numerical study of the scale effects affecting the evolution and sediment entrainment capacity of a gravity current, propagating over a loose bed containing large-scale roughness elements; Effect of relative motion between bubbles and surrounding liquid on the Reynolds stress as a mechanism controlling the radial gas holdup distribution; Velocity and turbulence measurements of oil-water flow in horizontal and slightly inclined pipes using PIV Section 4: Environmental multiphase flow Meandering of a particle-laden rivulet; Experimental study on the rheological behaviour of debris flow material in the Campania region; Experimental and numerical investigation of mixed flow in a gallery; Sediment transport via dam-break flows over sloping erodible beds Section 5: Bubble and drop dynamics Hydrodynamic drag and velocity of micro-bubbles in dilute paper machine suspensions; Effects of physical properties on the behaviour of Taylor bubbles; Numerical simulation of one-dimensional mixed flow with air/water interaction; Geometry effects on the interaction of two equal-sized drops in simple shear flow at finite Reynolds numbers Section 6: Flow in porous media Modelling the tide effects in groundwater; Modelling of diffusion in porous structures; Measurement and prediction for air flow drag in different packing materials; CFD simulation with multiphase flows in porous media and open mineral storage pile; Powered addition applied to the fluidisation of a packed bed Section 7: Heat transfer Tube bundle's cooling by aqueous foam; Desulfurization of heavy crude oil by microwave irradiation Section 8: Image processing Reconstruction of a three-dimensional bubble surface from high-speed orthogonal imaging of dilute bubbly flow; Experimental investigation on air entrainment below impinging jets by means of video observations and image processing Section 9: Interfacial behaviour LBM simulation of interfacial behaviour of bubbles flow at low Reynolds number in a square microchannel; Experimental investigation of a 2d impinging jet on a liquid surface
| Erscheint lt. Verlag | 10.6.2009 |
|---|---|
| Reihe/Serie | WIT Transactions on Engineering Sciences ; No. 63 |
| Zusatzinfo | Illustrations |
| Verlagsort | Southampton |
| Sprache | englisch |
| Maße | 155 x 230 mm |
| Themenwelt | Mathematik / Informatik ► Mathematik ► Analysis |
| Naturwissenschaften ► Physik / Astronomie ► Strömungsmechanik | |
| ISBN-10 | 1-84564-188-4 / 1845641884 |
| ISBN-13 | 978-1-84564-188-7 / 9781845641887 |
| Zustand | Neuware |
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