使用高斯波束跟踪的三维声学矢量场模型
Yuchen Chen1, Minghui Zhang1, Lijia Gong1
1National Key Laboratory of Underwater Acoustic Technology, Harbin Engineering University, Harbin 150001, Chinachenyuchen@hrbeu.edu.cn; zhangminghui@hrbeu.edu.cn; Lijia.gong@hrbeu.edu.cn.
JASA express letters
|September 1, 2023
概括
一个使用高斯波束追踪的新3D声学模型准确地预测了深海声音传播. 这种方法有效地模拟了远距离水下声学中的粒子速度和声压场.
科学领域:
- 海洋声学 海洋声学
- 水下声音传播的传播方法
- 计算物理 计算物理
背景情况:
- 对水下声音传播的准确建模对于各种应用至关重要,包括声纳和海洋资源勘探.
- 传统的声学模型往往面临着难以准确地代表复杂的深海环境和远程声音传输的挑战.
- 矢量水声机提供了更丰富的声学信息,包括粒子速度,这对于全面了解声场至关重要.
研究的目的:
- 开发和验证用于深海声音传播的三维声学矢量场模型.
- 评估高斯波束追踪作为预测声场的计算方法的有效性.
- 将模型预测与实体深海环境中的实验测量进行比较.
主要方法:
- 开发了一个三维声学矢量场模型,利用高斯式光束跟踪.
- 通过连贯地总结单个高斯波束的贡献来计算声场.
- 分析了在南中国海的深海远程声传播实验,使用矢量水电话数据 (粒子速度和声压).
主要成果:
- 高斯光束跟踪模型成功计算了基于光束宽度和eikonal的声学矢量场.
- 模型预测显示,与实验测量声音压力和粒子速度的结果一致.
- 该研究证实了光束追踪方法在预测深水中的声场方面的有效性.
结论:
- 高斯波束追踪为深海环境中的三维声学矢量场建模提供了一种有效和准确的方法.
- 开发的模型显示了提高对远程水下声音传播的理解和预测的巨大潜力.
- 矢量声测量对于验证复杂的声学传播模型至关重要.
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