Foreword

I am delighted to write the Foreword for this book, which captures the recent advances in both analytical and experimental techniques of describing accurately the single and multiphase flow phenomena in chemical engineering practice and biomedical systems.

In the chemical engineering arena, there is an interesting combination of chapters covering both fundamental and other applied studies. Fundamental studies focus on a wide variety of topics such as simulation of rarefied gas flow in porous media, mass transfer for soluble solids in a packed bed, tree shaped flow structures and constructal theory, interfacial area modeling in two-phase flows, etc. Other studies address the environmental topics of NOx abatement by selective catalytic reduction of NO by ammonia, and modeling of waste water treatment by combining CFD simulation with activated sludge models. Other CFD studies on chemical engineering side include super critical hydrogenation of edible oil and simulation of a viscoelastic fluid. Important area of mixing is covered by two articles, one dealing with the evolution of mixing science and its impact on chemical engineering, and the other dealing with a specific topic of turbulent mixing with chemical reaction. There are some interesting experimental studies reporting work on bubble column and packed beds.

In the biomedical arena a number of chapters cover many fascinating articles related to blood flow, ranging from pulse wave propagation in blood vessels to numerical simulation of blood flow in stenosed channels. Other chapters in this area which describe application of microfluidics to biological systems and biomedical applications are equally fascinating.

I would like to congratulate the editors for bringing these separate but complementary chapters together in a book form. It is also nice to see many multi-disciplinary teams from countries across the globe working together to produce these chapters. I hope that the reader will benefit from the breadth and depth of the range of chemical engineering and biomedical topics covered in these chapters.