Acoustics of Ducts and Mufflers

Fully updated second edition of the premier reference book on muffler and lined duct acoustical performance The highly successful first edition of this book (1987) is cited in many research and development papers as the only book in the world focusing singularly on this important subject. Over the years, the subject of analysis and design of mufflers has seen great advances in depth as well as breadth. This second edition seeks to offer the latest advances as well the fundamentals, and is a result of the author’s four–decade experience in graduate teaching, research, development and extensive industrial consultancy.  This much–awaited book covers generation, propagation and suppression of the exhaust and intake noise of the internal combustion engines used in automobiles and captive generator sets, and the fan or the air–handling unit noise of heating, ventilation and air–conditioning systems.  A special feature of this second edition is its coverage of three–dimensional analysis as well as the plane–wave theory. It is an essential guide for graduate students on Mechanical Engineering courses, and is a must–read for engineers working on automotive NVH and the HVAC Systems.  Presents original new research on topics including elliptical mufflers, acoustic louvers, 3D analytical techniques, and flow–acoustic analysis of multiply–connected perforated–element mufflers Includes a general design procedure to help muffler designers in the automotive industry, exhaust noise being a major component of automobile and traffic noise pollution

Dr. M. L. Munjal is a Mechanical Engineer specializing in Engineering Acoustics. Over a four–decade career at the Indian Institute of Science, he has published over 190 papers in refereed journals, carried out over 100 industrial consultancy projects, and has run graduate courses on ‘Industrial Noise Control’ and ‘Acoustics of Ducts and Mufflers’.  He is Chairman of the National Committee for Noise Pollution Control that advises on noise control measures and legislations in India. He is also a Distinguished International Member of the Institute of Noise Control Engineering, USA, and Honorary Fellow of the International Institute of Acoustics and Vibration. He has been a member of the Editorial Board of several journals including the International Journal of Acoustics and Vibration .