中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院页岩气与地质工程重点实验室
Reflections and transmissions from a porous layer sandwiched between seawater and solid substrate

文献类型：期刊论文

作者Yang, Chun1,2; Stovas, Alexey1; Wang, Yun2; Wang, Liheng3
刊名OCEAN ENGINEERING
出版日期2023-11-15
卷号288页码:14
ISSN号0029-8018
关键词Porous sediments Ocean floor Propagator matrix Reflections and transmissions Displacement function
DOI10.1016/j.oceaneng.2023.116075
英文摘要Ocean sediments are composed of a porous layer sandwiched between seawater and a solid elastic base. The reflection and transmission of acoustic waves from ocean sediments are essential in ocean engineering, seafloor seismology, etc. The existing reflection and transmission (R/T) formulas are determined by complex matrix equations in the order of 9 x 9 or higher. To obtain more concise R/T coefficient formulas, we established the propagator matrix of the coupled water-porous-layer-solid elastic system, wherein the above-water is ideal and the middle porous marine sediment is defined by the Biot-Stoll model. Based on the propagator matrix, the displacement R/T coefficients were given by a 3 x 3 matrix equation for two P-wave incidence cases: the down -going case from the water, and the up-going case from the ocean floor. For zero-frequency or zero-thickness limitation, the proposed R/T coefficient formulas are the same as the displacement R/T coefficients at a single fluid-solid interface. The numerical results of the reflected or transmitted waves in the above-water show that the R/T coefficients exhibit regular variations at frequencies far lower than the characteristic frequency. The R/T coefficient amplitudes decreased with increasing frequency at a fixed incidence angle and ratio between the thickness and wavelength.
WOS关键词LOCAL FLUID-FLOW ; ELASTIC-WAVES ; PLANE-WAVES ; ACOUSTIC-WAVES ; SEDIMENT ; PROPAGATION ; INTERFACE ; COEFFICIENTS ; SURFACE ; MOTION
资助项目National Natural Science Foundation of China[42150201] ; National Natural Science Foundation of China[62127815] ; Program of China Scholarship Council[202006405011] ; GAMES project at NTNU ; Beijing Natural Science Foundation[8232049]
WOS研究方向Engineering ; Oceanography
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:001104523200001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of China Scholarship Council ; Program of China Scholarship Council ; GAMES project at NTNU ; GAMES project at NTNU ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of China Scholarship Council ; Program of China Scholarship Council ; GAMES project at NTNU ; GAMES project at NTNU ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of China Scholarship Council ; Program of China Scholarship Council ; GAMES project at NTNU ; GAMES project at NTNU ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Program of China Scholarship Council ; Program of China Scholarship Council ; GAMES project at NTNU ; GAMES project at NTNU ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/111136]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Wang, Yun
作者单位1.Norwegian Univ Sci & Technol, Dept Geosci & Petr, Trondheim, Norway
2.China Univ Geosci Beijing, Sch Geophys & Informat Technol, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Chun,Stovas, Alexey,Wang, Yun,et al. Reflections and transmissions from a porous layer sandwiched between seawater and solid substrate[J]. OCEAN ENGINEERING,2023,288:14.
APA Yang, Chun,Stovas, Alexey,Wang, Yun,&Wang, Liheng.(2023).Reflections and transmissions from a porous layer sandwiched between seawater and solid substrate.OCEAN ENGINEERING,288,14.
MLA Yang, Chun,et al."Reflections and transmissions from a porous layer sandwiched between seawater and solid substrate".OCEAN ENGINEERING 288(2023):14.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。