This book is a compilation of several peer reviewed articles addressing important topics in Fluid Mechanics and Heat Transfer on the basis of Classical Thermodynamic concepts. Because of the multidisciplinary nature of this work, the reviewers at Nature's Scientific Reports felt it was necessary to expand the Introduction in "Analytical Method of Predicting Turbulence Transition in Pipe Flow" shown in Section 2, in order to enable "a general audience, such as a chemist or physicist familiar with thermodynamics but not fluid dynamics, to follow this contribution". This objective has been achieved here by including the full text of two older references together with additional useful data (See Table of Contents). Therefore, it will not be necessary for readers to spend any time finding and obtaining a number of scattered references from different publishers in the USA and Europe. The most significant, fundamental and useful results are highlighted in the author's Preface.