Page 7 - Bird R.B. Transport phenomena

iv Preface

e
Fourier analysis of turbulent transport at high Pr or Sc
• more on heat and mass transfer coefficients
• enlarged discussions of dimensional analysis and scaling
• matrix methods for multicomponent mass transfer
• ionic systems, membrane separations, and porous media
• the relation between the Boltzmann equation and the continuum equations
• use of the "Q+W" convention in energy discussions, in conformity with the lead-
ing textbooks in physics and physical chemistry
However, it is always the youngest generation of professionals who see the future most
clearly, and who must build on their imperfect inheritance.
Much remains to be done, but the utility of transport phenomena can be expected to
increase rather than diminish. Each of the exciting new technologies blossoming around
us is governed, at the detailed level of interest, by the conservation laws and flux expres-
sions, together with information on the transport coefficients. Adapting the problem for-
mulations and solution techniques for these new areas will undoubtedly keep engineers
busy for a long time, and we can only hope that we have provided a useful base from
which to start.
Each new book depends for its success on many more individuals than those whose
names appear on the title page. The most obvious debt is certainly to the hard-working
and gifted students who have collectively taught us much more than we have taught
them. In addition, the professors who reviewed the manuscript deserve special thanks
for their numerous corrections and insightful comments: Yu-Ling Cheng (University of
Toronto), Michael D. Graham (University of Wisconsin), Susan J. Muller (University of
California-Berkeley), William B. Russel (Princeton University), Jay D. Schieber (Illinois
Institute of Technology), and John F. Wendt (Von Karman Institute for Fluid Dynamics).
However, at a deeper level, we have benefited from the departmental structure and tra-
ditions provided by our elders here in Madison. Foremost among these was Olaf An-
dreas Hougen, and it is to his memory that this edition is dedicated.

Madison, Wisconsin R. В. В.
W. E. S.
E. N. L.