411-302 Transport Phenomena 2

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Objectives:

Upon completion of this unit the students will:

• have a basic understanding of fundamental concepts involved in momentum, heat and mass transfer in complex fluids and across interfaces;

• be able to solve simple problems involving transport of heat, mass and momentum in industrial situations.

Content:

Introduction: Development of the multidimensional equations of continuity and motion for heat, mass and momentum transfer. Dimensionless format for these equations.

Momentum Transport: Applications of the equation of motion to tubeflow, Couette flow, Stokes flow etc. Examination of non-Newtonian fluid theory. Approximate solutions via creeping flow, potential flow and boundary layer theory. Turbulence including models for Reynolds stresses to generate universal velocity profile. Friction factors for Newtonian and non-Newtonian fluids.

Heat Transfer: Multidimensional conduction problems, fins.

Mass Transfer: Basis for Fick's law. Physical meaning of diffusivity, prediction of diffusivity in gases, liquids and solids. Non Fickian diffusion, multicomponent diffusion. Diffusion across an interface. Definition and significance of mass transfer coefficients, prediction of mass transfer coefficients from film penetration and surface renewal theories, overall mass transfer coefficient correlations.

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