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WAVENUMBER: 作品数：45被引量：66H指数：4; 导出分析报告; 相关领域：天文地球更多>>; 相关作者：曹晨忠陈冠凡张荣吴文娟更多>>; 相关机构：北京大学湖南科技大学桂林理工大学中南大学更多>>; 相关期刊：《Science China Earth Sciences》《Theoretical & Applied Mechanics Letters》《Journal of Ocean University of China》《Earthquake Science》更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金广西壮族自治区自然科学基金更多>>

Kolmogorov-Arnold networks modeling of wall pressure wavenumber-frequency spectra under turbulent boundary layers: 《Theoretical & Applied Mechanics Letters》2025年第2期115-121,共7页Zhiteng Zhou Yi Liu Shizhao Wang Guowei He; supported by the National Natural Science Foundation of China Basic Science Center Program for“Multiscale Problems in Nonlinear Mechanics”(Grant No.11988102);the National Natural Science Foundation of China(Grant Nos.92252203,12102439,and 12425207);the Chinese Academy of Sciences Project for Young Scientists in Basic Research(Grant No.YSBR-087);the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDB0620102).; The empirical models for wavenumber-frequency spectra of wall pressure are broadly used in the fast prediction of aerodynamic and hydrodynamic noise.However,it needs to fit the parameter using massive data and is only...; 关键词：Wavenumber-frequency spectra Kolmogorov-Arnold networks modeling Turbulent boundary layers

Full waveform inversion based on hybrid gradient: 《Petroleum Science》2024年第3期1660-1670,共11页Chuang Xie Zhi-Liang Qin Jian-Hua Wang Peng Song Heng-Guang Shen Sheng-Qi Yu Ben-Jun Ma Xue-Qin Liu; jointly supported by Young Scientists Cultivation Fund Project of Harbin Engineering University(79000013/003);the Mount Taishan Industrial Leading Talent Project;the Great and Special Project under Grant KJGG-2022-0104 of CNOOC Limited;the National Natural Science Foundation of China(42006064,42106070,42074138)。; The low-wavenumber components in the gradient of full waveform inversion(FWI)play a vital role in the stability of the inversion.However,when FWI is implemented in some high frequencies and current models are not far ...; 关键词：Full waveform inversion Hybrid gradient Scattering angle weighted Low-wavenumber component

An inverse method for characterization of dynamic response of 2D structures under stochastic conditions: 《Chinese Journal of Aeronautics》2024年第3期440-455,共16页Xuefeng LI Abdelmalek ZINE Mohamed ICHCHOU Noureddine BOUHADDI Pascal FOSSAT; supported by the Lyon Acoustics Center of Lyon University,France;funded by the China Scholarship Council(CSC)。; The reliable estimation of the wavenumber space(k-space)of the plates remains a longterm concern for acoustic modeling and structural dynamic behavior characterization.Most current analyses of wavenumber identificatio...; 关键词：Inverse method Dispersion relation Wavenumber space Periodic plates Stochastic conditions Wave propagation characterization

Time Domain Full Waveform Inversion Based on Gradient Preconditioning with an Angle-Dependent Weighting Factor被引量：1: 《Journal of Ocean University of China》2022年第6期1479-1486,共8页XIA Dongming SONG Peng LI Xishuang TAN Jun XIE Chuang WANG Shaowen LIU Kai ZHAO Bo MAO Shibo; funded by the National Natural Science Foundation of China(No.42074138);the Wenhai Program of the S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology(Qingdao)(No.2021WHZZB0700);the Major Scientific and Technological Innovation Project of Shandong Province(No.2019JZZY010803).; There are lots of low wavenumber noises in the gradients of time domain full waveform inversion(FWI),which can seriously reduce the accuracy and convergence speed of FWI.Thus,we introduce an angle-dependent weighting ...; 关键词：full waveform inversion low wavenumber noise angle-dependent weighting factor

Feature Selection for Cluster Analysis in Spectroscopy被引量：1: 《Computers, Materials & Continua》2022年第5期2435-2458,共24页Simon Crase Benjamin Hall Suresh N.Thennadil; Cluster analysis in spectroscopy presents some unique challenges due to the specific data characteristics in spectroscopy,namely,high dimensionality and small sample size.In order to improve cluster analysis outcomes,...; 关键词：Cluster analysis SPECTROSCOPY unsupervised learning feature selection wavenumber selection

Scattering of water waves by a wave energy device consisting of a pair of co-axial cylinders in a uniform water having finite channel width被引量：1: 《Journal of Ocean Engineering and Science》2021年第3期276-284,共9页P.Borah M.Hassan; the Department of Science and Technol-ogy,SERB,[grant number:SERB(YSS/14/000884)]。; We consider a device which consists of a floating structure over a cylindrical plate placed at a finite height from the impermeable ocean floor.This paper developes the interaction of linear water waves with such a de...; 关键词：Water waves Exciting force Channel multipoles Channel width Wavenumber 2000 MSC 76B07 76B15.

On the capability of the curvilinear immersed boundary method in predicting near-wall turbulence of turbulent channel flows被引量：1: 《Theoretical & Applied Mechanics Letters》2021年第4期213-218,共6页Fei Liao Xiaolei Yang; This work was supported by the National Natural Science Foundation of China(NSFC)Basic Science Center Program for“Multiscale Problems in Nonlinear Mechanics”(No.11988102);the Strategic Priority Research Program,Chinese Academy of Sciences(CAS)(No.XDB22040104).; The immersed boundary method has been widely used for simulating flows over complex geometries.However,its accuracy in predicting the statistics of near-wall turbulence has not been fully tested.In this work,we evalua...; 关键词：Immersed boundary method Turbulent channel flow Wavenumber-frequency spectra Near-wall turbulence

Improved nonlinear parabolized stability equations approach for hypersonic boundary layers被引量：1: 《Chinese Physics B》2021年第5期424-436,共13页Shaoxian Ma Yi Duan Zhangfeng Huang Shiyong Yao; the National Natural Science Foundation of China(Grant Nos.12072232 and 11672351);the National Key Project of China(Grant No.GJXM92579).; The nonlinear parabolized stability equations(NPSEs)approach is widely used to study the evolution of disturbances in hypersonic boundary layers owing to its high computational efficiency.However,divergence of the NPS...; 关键词：nonlinear parabolized stability equations(NPSEs) hypersonic boundary layers streamwise wavenumber

Meshless acoustic analysis using a weakly singular Burton-Miller boundary integral formulation: 《Applied Mathematics and Mechanics(English Edition)》2020年第12期1897-1914,共18页Linchong CHEN Xiaolin LI; Project supported by the National Natural Science Foundation of China(No.11971085);the Innovation Research Group Project in Universities of Chongqing of China(No.CXQT19018);the Science and Technology Research Program of Chongqing Municipal Education Commission of China(No.KJZD-M201800501);and the Science and Technology Research Program of Chongqing University of Education of China(No.KY201927C)。; The Burton-Miller boundary integral formulation is solved by a complex variable boundary element-free method(CVBEFM)for the boundary-only meshless analysis of acoustic problems with arbitrary wavenumbers.To regularize...; 关键词：meshless method complex variable moving least-square approximation boundary element-free method Burton-Miller formulation REGULARIZATION high frequency acoustic problem large wavenumber

A broadband high resolution direction of arrival estimation algorithm based on conditional wavenumber spectral density: 《Chinese Journal of Acoustics》2020年第4期482-497,共16页LI Xuemin HUANG Haining LI Yu YE Qinghua ZHANG Yangfan; supported by the National Natural Science Foundation of China(11504402);National Defense Basic Scientific Research Plan(JCKY2016206A003)。; A broadband high resolution direction of arrival(DOA) estimation algorithm named the conditional wavenumber spectral density based(CWSD-based) is proposed in this paper aimed at the problem of large error and high com...; 关键词：RESOLUTION ESTIMATION ALGORITHM

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