CX4001 Multiphase Flow Syllabus:

CX4001 Multiphase Flow Syllabus – Anna University PG Syllabus Regulation 2021

COURSE OBJECTIVES:

• To understand the fundamental parameters in multiphase flow
• To study the mechanism of interaction between particles
• To study the models and correlations for different flow types
• To analyze the equations of motion for multi phase flow
• To study the experimental methods for measuring hydrodynamic parameters

UNIT I CHARACTERISTICS OF MULTIPHASE FLOWS

Significance of multiphase flows, important non-dimensional numbers, parameters of characterization, particle size measurement, size distribution and moments, size distribution models

UNIT II PARTICLE FLUID INTERACTION

Equation of motion for a single particle, calculation of drag, motion of a particle in two dimensions, effects of unsteady and non-uniform flow fields, effect of acceleration, effect of coupling; Interaction between particles, mechanism of interaction, inter-particle forces, hard sphere model, soft sphere model, discrete element modeling, semi-empirical methods, kinetic theory, force chains.

UNIT III MODELING OF MULTI-PHASE FLOWS

Flow patterns – identification and classification – flow pattern maps and transition – momentum and energy balance – homogeneous and separated flow models – correlations for use with homogeneous and separated flow models – void fraction and slip ratio correlations – influence of pressure gradient – empirical treatment of two phase flow – drift flux model – correlations for bubble, slug and annular flows

UNIT IV CONSERVATION EQUATIONS

Averaging procedures – time, volume, and ensemble averaging, quasi-one-dimensional flow, two fluid volume-averaged equations of motion, turbulence and two-way coupling

UNIT V MULTI-PHASE SYSTEMS

Flow regime and hydrodynamic characteristics of packed bed, fluidized bed, pneumatic conveying, bubble column, trickle beds; Conventional and novel measurement techniques for multi phase systems including CARPT, Laser Doppler anemometry, Particle Image Velocimetry.

TOTAL : 45 PERIODS

COURSE OUTCOMES:

CO1: Understand the significance of multiphase flows and different flow pattern in multiphase flow
CO2: Understand the determination of hydrodynamic parameters in the multiphase flow system
CO3: Understanding the concept of different flow models
CO4: Understand the one dimensional two dimensional flow equation in turbulent condition
CO5: Understanding the hydrodynamic characteristics in different contactors and measurement techniques in multiphase flow

REFERENCES

1. Clift, R., Weber, M.E. and Grace, J.R., Bubbles, Drops, and Particles, Academic Press, New York, 2005.
2. Crowe, C. T., Sommerfeld, M. and Tsuji, Y., Multiphase Flows with Droplets and Particles, CRC Press, 2011
3. Fan, L. S. and Zhu, C., Principles of Gas – solid Flows, Cambridge University Press, 2005
4. Govier, G. W. and Aziz, K., ―The Flow of Complex Mixture in Pipes, Van Nostrand Reinhold, New York, 1972
5. Kleinstreuer, C., Two – phase Flow : Theory and Applications, Taylor & Francis, 2003
6. Rhodes, M., Introduction to Particle Technology, John Wiley & Sons, New York, 2008
7. Wallis, G. B., One Dimensional Two Phase Flow, McGraw Hill Book Co., New York