Customer Reviews

Design and Simulation of Two-Stroke Engines (R161)

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Design and Simulation of Two-Stroke Engines is a must read reference for the student of the internal combustion engine and the expert alike. This follow up to The Basic Design of Two-Stroke Engines begins with a comprehensive introduction which defines the simplest of engine geometry to the thermodynamic terms specific to the two-stroke engine. Chapter Two, a most demanding read, explains in great detail the author's established theory of unsteady, compressible flow through engine ducting. This theory is the foundation of the GPB computer simulation code. This engine modelling software allows for the complete prediction of engine performance from torque to fuel consumption to exhaust emissions. Scavenging and combustion specific to the two-stroke engine are dealt with in individual chapters. Chapter Five describes the structure of the computer model and the required input data. Several real world examples of computer models are given including a relatively low performance chainsaw and a high performance racing motorcycle. As simple and effective as a computer model may sound, the author stresses that the numerical input for the model is impossible to guess correctly. Therefore, Chapter Six details all of the emperical techniques the author has created as design guidelines. Data generated using these techniques are to be used as initial inputs to the engine simulation. Finally, the remaining two chapters detail research and simulation involving reduction of fuel consumption, exhaust emissions and noise emissions. New information not covered in The Basic Design of Two-Stroke Engines is presented on unsteady gas flow, scavenging flow, two-zone combustion models, computation of intake and exhaust sound pressure levels and discharge coefficients of ports and valves.

This is an excellent book for students and their instructors at both the undergraduate and graduate levels. It develops the theory and practice of two-stroke cycle engines in a clear and concise manner. The book is unique in that it presents in a single volume the whole spectrum of two-stroke technology. The material is derived from the many years the author has spent researching and consulting on the subject. The reader will be brought right up to date on such important topics such as computer simulation, engine performance, fuel efficiency, noise, and exhaust emissions.

A must read for any serious two stroke enthusiast, designer, or racer. This book is especially helpful in understanding all areas of IC engine design and how they interrelate, with an emphasis on two strokes. Blair gives volumes of insight as well as excellent illustrations, graphs and pictures to help the reader understand sometimes complex theory. The author provides an excellent treatment of unsteady gas dynamics and motion of pressure waves through the engine. He takes the reader from theory to practice by using simulation through modeling with an abundance of practical empirical design advice. Although this book is mainly germane to two stroke engines, the reader can glean the applicable theories to four stroke engines (at least until Blair publishes his treatise on four strokes).

Dr. Douglas E. Hahn, Director Engine & Reliability Engineering , Volvo Penta of the America's

The author has made an excellent attempt, and in my opinion succeeded, in presenting the gas dynamic theories for unsteady gas flow in an easy to follow format. The theories are well corroborated by providing practical examples of engine designs from the real world.This should instill a lot of confidence in designers who choose this approach to engine design, as it certainly has for me.

I cannot comment on this book, as I have not read it. In searching for this title, I discovered that it is available directly from SAE for $100. There is no reason for you to pay over $400 for this book.