学术
摘 要:
文中提出了空气中移动声源激发水下声场的简正波频谱表达式。该表达式物理意义明确,形式简单,易于数值计算。利用文中表达式对目前比较流行的简正波程序Kraken进行了改进,通过与波数积分法OAST的计算结果进行比较,验证了所提表达式的正确性。通过数值模拟,对声源与接收相对运动时对声场产生的影响进行了讨论。[著者文摘]
文章出处:
《声学技术》-2007年26卷4期 -564-569页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1000-3630（2007）-04-056-006
Modal representation of air-to-water sound transmission caused by moving airborne source
LI Hui, PENG Zhao-hui （National Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences. Beijing, 100080, China）
Abstract:
A modal representation is developed for the acoustic pressure field in a stratified waveguide ex-cited by a moving airborne source.In principle,the normal mode expression presented can be easily im-plemented in many underwater acoustic normal-mode codes.As an example,it has been implemented in Kraken based on the normal mode theory.Numerical results from Kraken are shown to be in accordance with those by OAST,a wave-number integration code.A physical explanation of the source/receiver mo-vement is given.[著者文摘]
Key words:
air-to-water sound field;moving acoustic;normal-modes
基金资助:
国家自然科学基金资助项目（批准号：10523002）
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