“I never teach my pupils. I only attempt to provide the conditions in which they can learn.”
—Albert Einstein, 1879–1955, Physicist
When a fluid is passed upward through a bed of particles, as illustrated in Figure 15.1, the pressure drop increases as the fluid velocity increases. The product of the pressure drop and the bed crosssectional area represents the net upward force acting on the bed, and when this force becomes equal to the weight of the bed (solids plus fluid), the bed becomes suspended by the fluid. In this state, the particles can move freely within the “bed,” which thus behaves much like a boiling liquid. Under these conditions, the bed is said to be “fluidized.” This “freely ...
Get Chemical Engineering Fluid Mechanics, 3rd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
