title: Wave propagation analysis in spiral geometries.
abstract: In this paper wave propagation in strings of exponential and conical spiral geometries and in an exponential spiral horn of increasing circular cross-section area is studied. The three-dimensional wave equation in cylindrical coordinates is investigated, as the theoretical solution in the exponential spiral horn is derived and in the case of the strings, numerical simulation mainly using a centered in time and space finite difference scheme is carried out. The results suggest non-harmonic resonance modes in both of the conical and exponential spiral strings.
authors: Department of Mechanical and Industrial Engineering, Concordia University, Montreal, Quebec H3G 1M8, Canada r_morte@encs.concordia.ca, rama.bhat@concordia.ca.
authors: Rasoul
authors: R
authors: Morteza Pouraghdam
authors: Department of Mechanical and Industrial Engineering, Concordia University, Montreal, Quebec H3G 1M8, Canada r_morte@encs.concordia.ca, rama.bhat@concordia.ca.
authors: Rama B
authors: RB
authors: Bhat