Mass Transfer Processes: Modeling, Computations, and Design

Chapter 12. Convective Mass Transfer in Turbulent Flow

Learning Objectives

After completing this chapter, you will be able to:

• Understand basic properties of turbulent flow and the concept of time averaging.

• Appreciate that there is a closure problem in modeling of turbulent flows.

• Define and use the eddy diffusivity model for closure of the problem.

• Apply the eddy diffusivity model to find the flux and mass transfer coefficients in typical turbulent solid–liquid mass transfer problems.

• Understand the basis of the analogy of mass transfer with momentum transfer.

• Understand common models of turbulent mass transfer from a gas–liquid interface.

This chapter introduces and solves problems where mass transfer occurs under turbulent flow conditions. ...