论文标题
与径向声速前线的理想海洋楔形环境的混合正常模式和能量通量模型
Hybrid normal mode and energy flux model for an ideal oceanic wedge environment with radial sound speed front
论文作者
论文摘要
能量通量是一种声学传播模型，它可以计算本地平均强度，而无需计算明确的特征值或追踪光线。到目前为止，能量通量法仅用于二维问题，这些问题通过旋转或翻译对称性折叠了第三维。该报告概述了使用正常模式和能量通量法的组合，概述了三维海洋声传播模型的推导和实施。该模型是专门为楔形环境而得出的，其径向声速前距离海岸线一定距离。将混合能量通量模型的输出与仅在正常模式上构建的环境的另一个繁殖模型的输出进行了比较。观察到可能归因于模型推导的固有差异的某些差异，观察到苛性特征的形状，位置和幅度的一般共识。这项工作是开发更一般的三维能量通量模型的垫脚石。
Energy flux is an acoustic propagation model that calculates the locally-averaged intensity without computing explicit eigenvalues or tracing rays. The energy flux method has so far only been used for two-dimensional problems that have collapsed the third dimension by rotational or translational symmetry. This report outlines the derivation and implementation of a three-dimensional ocean acoustic propagation model using a combination of normal modes and the energy flux method. This model is specifically derived for a wedge environment with a radial sound speed front at some distance from the shoreline. The hybrid energy flux model's output is compared to that of another propagation model for this environment that is built on normal modes alone. General agreement in the shape, location, and amplitude of caustic features is observed with some discrepancies that may be attributable to inherent differences in the model derivations. This work serves as a stepping-stone toward developing a more generalized three-dimensional energy flux model.
