Fluid flows that transfer heat and mass often involve drops and bubbles,
particularly if there are changes of phase in the fluid in the formation
or condensation of steam, for example. Such flows pose problems for the
chemical and mechanical engineer significantly different from those
posed by single-phase flows. This book reviews the current state of the
field and will serve as a reference for researchers, engineers,
teachers, and students concerned with transport phenomena. It begins
with a review of the basics of fluid flow and a discussion of the shapes
and sizes of fluid particles and the factors that determine these. The
discussion then turns to flows at low Reynolds numbers, including
effects due to phase changes or to large radial inertia. Flows at
intermediate and high Reynolds numbers are treated from a numerical
perspective, with reference to experimental results. The next chapter
considers the effects of solid walls on fluid particles, treating both
the statics and dynamics of the particle-wall interaction and the
effects of phase changes at a solid wall. This is followed by a
discussion of the formation and breakup of drops and bubbles, both with
and without phase changes. The last two chapters discuss compound drops
and bubbles, primarily in three-phase systems, and special topics, such
as transport in an electric field.