TY - JOUR
T1 - Numerical computation on the scattering sound field distribution of rigid sphere in shallow water waveguide
AU - Jihui, Wang
AU - Guijuan, Li
AU - Bing, Jia
AU - Zhenshan, Wang
AU - Rui, Wang
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2020/4/9
Y1 - 2020/4/9
N2 - Numerical computational model about the scattering fields of rigid sphere in shallow water waveguide is accomplished using boundary element method and normal mode model. A kind of modified CHIEF boundary element method is used to solve the non-uniqueness problem at characteristic frequency for exterior sound field computation. The green function for shallow water waveguide acoustic wave propagation is modified based on the normal mode model. The acoustic pressure in the far field yields Kirchhoff Helmholtz equation and the scattering sound field distribution of rigid sphere in a Pekeris waveguide is achieved. Also the scattering sound field distribution of rigid sphere in the free field is calculated. The results indicate that the waveguide influences the sound propagation, and it need to pay attention during the test.
AB - Numerical computational model about the scattering fields of rigid sphere in shallow water waveguide is accomplished using boundary element method and normal mode model. A kind of modified CHIEF boundary element method is used to solve the non-uniqueness problem at characteristic frequency for exterior sound field computation. The green function for shallow water waveguide acoustic wave propagation is modified based on the normal mode model. The acoustic pressure in the far field yields Kirchhoff Helmholtz equation and the scattering sound field distribution of rigid sphere in a Pekeris waveguide is achieved. Also the scattering sound field distribution of rigid sphere in the free field is calculated. The results indicate that the waveguide influences the sound propagation, and it need to pay attention during the test.
UR - http://www.scopus.com/inward/record.url?scp=85083266157&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/780/3/032058
DO - 10.1088/1757-899X/780/3/032058
M3 - Conference article
AN - SCOPUS:85083266157
SN - 1757-8981
VL - 780
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 3
M1 - 032058
T2 - 2019 2nd International Symposium on Traffic Transportation and Civil Architecture, ISTTCA 2019
Y2 - 13 December 2019 through 15 December 2019
ER -