Browsing NTNU Open by Author "Zhang, Haigang"

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Horizontal refraction of sound waves resulting in elliptical polarization of horizontal particle displacement and deflection of horizontal energy flux

Tang, Jun; Piao, Shengchun; Zhang, Haigang; Zhang, Minghui; Zhu, Hanhao (Journal article, 2018)

For the application of vector hydrophone in bearing estimation, effects of horizontal refraction on vector-field characteristics in the problem of three-dimensional (3D) underwater sound propagation are studied. Through ...
Three-dimensional parabolic equation model for seismo-acoustic propagation: Theoretical development and preliminary numerical implementation

Tang, Jun; Piao, Shengchun; Zhang, Haigang (Journal article; Peer reviewed, 2017)

A three-dimensional (3D) parabolic equation (PE) model for sound propagation in a seismo-acoustic waveguide is developed in Cartesian coordinates, with x, y, and z representing the marching direction, the longitudinal ...