Transport Processes and Separation Process Principles, 5th Edition

Chapter 6. Flows in Packed and Fluidized Beds

6.0 Chapter Objectives

On completion of this chapter, a student should be able to:

• Explain the concept of drag

• Identify flows around solids, as opposed to flows inside conduits and pipes

• Distinguish between skin drag and form drag

• Sketch and explain flow behavior around an immersed object

• Explain how boundary-layer separation is observed in flows around solids

• Calculate the drag coefficient and drag force for flows around solids

• Explain how flow behavior can vary if the solid object is a cylinder, sphere, or disk

• Identify industrial examples of flows around immersed objects

• Explain the concept of a packed bed

• Calculate the voidage and solid-volume fraction of a packed bed

• Use the Blake–Kozeny equation ...