10th European Conference on Mixing
H.E.A. van den Akker, J.J. Derksen
Elsevier, Jun 14, 2000 - Technology & Engineering - 572 pages
Traditionally, fluid mixing and the related multiphase contacting processes have always been regarded as an empirical technology. Many aspects of mixing, dispersing and contacting were related to power draw, but understanding of the phenomena was limited or qualitative at the most.
In particular during the last decade, however, plant operation targets have tightened and product specifications have become stricter. The public awareness as to safety and environmental hygiene has increased. The drive towards larger degrees of sustainability in the process industries has urged for lower amounts of solvents and for higher yields and higher selectivities in chemical reactors. All this has resulted in a market pull: the need for more detailed insights in flow phenomena and processes and for better verifiable design and operation methods.
Developments in miniaturisation of sensors and circuits as well as in computer technology have rendered leaps possible in computer simulation and animation and in measuring and monitoring techniques.
This volume encourages a leap forward in the field of mixing by the current, overwhelming wealth of sophisticated measuring and computational techniques. This leap may be made possible by modern instrumentation, signal and data analysis, field reconstruction algorithms, computational modelling techniques and numerical recipes.
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PARTICLE COLLISIONS IN CRYSTALLISATION
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2000 Elsevier Science agitated average axial bafﬂe Baldyga bottom bubble calculated Chem chemical chemical reaction coalescence coefﬁcient computational concentration Conference on Mixing conﬁguration constant correlation crystallizer deﬁned density Derksen editors diameter dimensionless dispersed phase drag coefficient droplet Elsevier Science B. V. equation European Conference experimental data experiments feed ﬁgure ﬁrst flow ﬂow ﬁeld ﬂuctuations ﬂuid frequency geometry grid hydrodynamics hydrofoil impeller impeller blades impeller speed increase inﬂuence kinetic energy laser liquid local bubble mass transfer measured method micromixing mixer Mixing H.E.A. obtained Pa.s parameters particle Particle Image Velocimetry pitched blade turbine plane power input power number predicted proﬁles radial radial velocity ratio reaction reactor Reynolds number Rushton turbine scale shear strength shear stress sludge solid solution sparged static mixer stirred tank stirred vessels stirrer speed suspension tracer turbulence model turbulent kinetic energy values viscosity volume vortex vortices