Computational Methods in Multiphase Flow VIII
WIT Press (Verlag)
978-1-84564-946-3 (ISBN)
This book presents the latest research in one of the most challenging, yet most universally applicable areas of technology. Multiphase flows are found in all areas of technology, at all length scales and flow regimes, involving compressible or incompressible linear or nonlinear fluids. The range of related problems of interest is vast, including astrophysics, biology, geophysics, atmospheric process, and many areas of engineering. The solution of the equations that describe such complex problems often requires a combination of advanced computational and experimental methods. For example, any models developed must be validated through the application of expensive and difficult experimental techniques. Numerous problems in the area thus remain as yet unsolved, including modelling nonlinear fluids, modelling and tracking interfaces, dealing with multiple length scales, characterising phase structures, and treating drop break-up and coalescence. The papers contained in the book were presented at the eighth in a well established series of biennial conferences that began in 2001.They represent close interaction between numerical modellers and other researchers working to gradually resolve the many outstanding issues in understanding of multiphase flow.
The papers in the book cover such topics as: Multiphase flow simulation; Bubble and drop dynamics; Interface behaviour; Experimental measurements; Energy applications; Compressible flows; Flow in porous media; Turbulent flow; Image processing; Heat transfer; Atomization; Hydromagnetics; Plasma; Fluidised beds; Cavitation.
ContentsSection 1: Computational modellingComputational multi-component modelling of electron transport and ohmic heating inside a micro arc-jet thrusters; Space and temporal evolution of density wave oscillations in multi-phase flow channels of boiling water reactors; Solutions of scalar mean profiles close to gas-liquid interfaces under turbulent free slip motion; Modelling heat transfer in flashing CO2 fluid upon rapid decompression in pipelines; Numerical simulation and pressure drop prediction of slug flow in oil/gas pipelines; Characterization of the fluidization of medium consistency pulp suspensions in a centrifugal pump; Numerical study of surface tension effects on bubble detachment in a submerged needleSection 2: Experimental measurementsChemical determination of oxygen transfer rates, transfer efficiencies and interphases evoked by aeration elements for liquid flows; Pressure drop, flow pattern and hold-up measurements of gas-liquid flow in pipes; Experiments on water droplet separation in a Ranque-Hilsch vortex tube (RHVT); Experimental study on the radial distribution of the main transition velocities in bubble columns; Influence of temperature and electrolyte concentration on regime maps in vertical-adiabatic two-phase pipe flow; Behaviour of biomass particles in a large scale (2-4MWth) bubbling bed reactor; Oblique shock interaction with a cylindrical density interface; Effects of inclination angle on a shock-accelerated heavy gas columnSection 3: Multiphase flow simulationExperimental and numerical investigation of liquid jets evaporating in a dilute gas-liquid-solid pipe flow; Scaling in multiphase systems application to accidental scenarios in PWR; Stochastic interactions of rough particles in viscous shear flow; Prediction of the fraction of water bypassed to ECBD due to interaction of air crossflow; Internal and external characteristics of a superheated jet; A high-order approach to solving nonlinear differential equations applied to direct numerical simulation of two-phase unsteady flow; Development of a multiscale solver with sphere partitioning tracking; Numerical simulation of laminar core-annular flow in a 90 bend; Enhancement of the SPARC90 code capabilities for pool scrubbing under jet injection regimes; Studies of grain segregation patterns on a destoner using a CFD-DEM approach; Computational modelling of gas-liquid multiphase flows with DQMOM and the N-phase Algebraic Slip Model; Numerical modelling of the slurry flow in pipelines and prediction of flow regimes; Modelling effects of particle size and pipe gradient on sand transport in multiphase pipes; Mechanistic model for four-phase sand/water/oil/gas stratified flow in horizontal pipes; Sensitivity of dispersed-bubble flow regime identification over a broad parameter space and to various closure relations for mechanistic models of gas-liquid pipe flow; Validation analyses of advanced turbulence model approaches for stratified two-phase flowsSection 4: Bubble and drop dynamicsModeling of micrometre-sized molten metallic droplet impact on a solid wall; A study on thermally controlled bubble growth in a superheated liquid with a thermal non-equilibrium cavitation model based on energy balances on a fixed fluid mass; Experimental study of water drop motions induced by superposition of vibrations and shear flowsSection 5: CavitationCFD modeling of cavitation in solenoid valves for diesel fuel injection; avitation modeling using compressible Navier-Stokes and Korteweg equationsSection 6: Interface behaviourPhysical modeling of turbulent multiphase flow in a continuous casting steel mold; Development of new correlations for annular flow; Surfactant concentration and its effect on the flow field inside an oil droplet rising in an aqueous medium: LIF and PIV measurementsSection 7: Flow in porous mediaThree-dimensional visualization of natural convection of miscible fluids due to the density difference in a packed bed; Three-dimensional simulation of the impregnation stage of the RTM process considering the local structure of the fiber layup; Particle Image Velocimetry with high power Light Emitting Diodes for flow through porous medium; Transport of water-glycerol mixtures in porous materials studied with NMR imaging
| Erscheint lt. Verlag | 20.4.2015 |
|---|---|
| Reihe/Serie | WIT Transactions on Engineering Sciences ; 89 |
| Verlagsort | Southampton |
| Sprache | englisch |
| Maße | 156 x 234 mm |
| Themenwelt | Mathematik / Informatik ► Mathematik ► Angewandte Mathematik |
| Naturwissenschaften ► Physik / Astronomie ► Strömungsmechanik | |
| Technik ► Maschinenbau | |
| ISBN-10 | 1-84564-946-X / 184564946X |
| ISBN-13 | 978-1-84564-946-3 / 9781845649463 |
| Zustand | Neuware |
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