Multiphase Flow and Fluidization by Dimitri Gidaspow

By Dimitri Gidaspow

Invaluable as a reference for engineers in and as a sophisticated point textual content for graduate engineering scholars, Multiphase circulate and Fluidization takes the reader past the theoretical to illustrate how multiphase circulate equations can be utilized to supply utilized, sensible, predictive suggestions to business fluidization difficulties. Written to aid boost development within the rising technological know-how of multiphase stream, this book Read more...

summary: worthy as a reference for engineers in and as a complicated point textual content for graduate engineering scholars, Multiphase stream and Fluidization takes the reader past the theoretical to illustrate how multiphase stream equations can be utilized to supply utilized, useful, predictive strategies to business fluidization difficulties. Written to assist increase growth within the rising technological know-how of multiphase circulate, this publication starts off with the improvement of the conservation legislation and strikes on via kinetic concept, clarifying many actual suggestions (such as particulate viscosity and solids strain) and introducing the recent established variable--the quantity fraction of the dispersed section. routines on the finish of every chapterare supplied for additional research and lead into functions now not coated within the textual content itself. Key positive aspects * Treats fluidization as a department of shipping phenomena * Demonstrates tips on how to do temporary, multidimensional simulation of multiphase tactics * the 1st e-book to use kinetic thought to move of particulates * Is the one booklet to debate numerical balance of multiphase equations and even if such equations are well-posed * Explains the starting place of bubbles and the idea that of serious granular circulate * offers in actual fact written routines on the finish of every bankruptcy to facilitate knowing and additional examine

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Fitzgerald (1960). "The Processing of Solids of Changing Size in Bubbling Fluidized Beds," Powder Technology 2, 87-96. Transport Equations 29 Lyczkowski, R. , D. Gidaspow, C. W. Solbrig, and E. D. Hughes (1978). "Characteristics and Stability Analysis of Transient One-Dimensional Two-Phase Flow Equations and Their Finite Difference Approximations," Nuclear Science and Engineering 66, 378-396. Lyczkowski, R. , D. Gidaspow, and C. W. Solbrig (1982). "Multiphase Flow-Models for Nuclear, Fossil and Biomass Energy Conversion," pp.

79), where definitions of temperature and pressure were used: as. -1 au. -', dt i . 79) Multiplication ofEq. 77) gives the expression for the rate of change of entropy: as. -I dp. -'-. -' -P·"\l·E·Y·. 81 ) where all the terms on the right-hand side cancel. Thus, in the absence of heat transfer and energy dissipation, the entropy of the ith phase stays a constant along its own stream line. Now, suppose the work term p; raEi fat) was not present in the energy balance. Then the entropy balance for phase i, as seen from Eq.

8. 11 ) Note that (3 divided by the viscosity is the reciprocal permeability, It is proportional to the square of the particle diameter for low flows. Wen and Yu (1966) have extended the works of Richardson and Zaki (1954) to derive an expression for pressure drop prediction in a particulate bed. 15) In Eq. 12) fiE) shows the effect due to the presence of other particles in the fluid and acts as a correction to the usual Stokes law for free fall of a single particle. 16) although this correction was usually small.

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