This book represents the HELS (Helmholtz equation least squares) theory and its applications for visualizing acoustic radiation from an arbitrarily shaped vibrating structure in free or confined space. It culminates the most updated research work of the author and his graduate students since 1997. The book contains six chapters. The first serves as a review of the fundamentals in acoustics and the rest cover five specific topics on the HELS theory.
Chapter
1. Introduction.
Chapter
2. The Spherical Wave Functions.
Chapter
3. The Helmholtz Equation Least Squares (HELS) Method.
Chapter
4. Validity of the HELS Method.
Chapter
5. Implementation of the HELS Method.
Chapter
6. Combined Helmholtz Equation Least Squares (CHELS) Method.
Chapter
7. Hybrid HELS.
Chapter
8. Equivalent Sources Using HELS.
Chapter
9. Transient HELS.
Chapter
10. Panel Acoustic Contribution Analysis Using HELS.- References.- Index.
Sean F. Wu received his Ph.D. from Georgia Institute of Technology, U.S.A. in 1987. He joined the Mechanical Engineering Department at Wayne State University as an Assistant Professor in 1988, was promoted to Associate Professor in 1995 and Professor in 1999, was selected in an unanimous vote as the Charles DeVlieg Professor in 2002 and appointed by the Board of Governors to the rank of University Distinguished Professor in 2005.
Dr. Wu holds the rank of Fellow in the American Society of Mechanical Engineers and the Acoustical Society of America, and serves as an Associate Editor and Express Letter Editor for the Journal of the Acoustical Society of America and Co-Editor-In-Chief for Journal of Computational Acoustics.
