PERTURBATION_METHOD

作品数：174被引量：228H指数：6
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相关机构：中国船舶工业集团公司第708研究所首都师范大学上海交通大学北京理工大学更多>>
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A NEW METHOD IN GROUNDWATER FLOW MODELING被引量：5
《Journal of Hydrodynamics》2009年第2期245-254,共10页MA Xiu-yuan LI Shu-guang ZHU Wei-shen 
Project supported by the National Science Fund for Distinguished Young Scholars(Grant No.50625927).
One of the challenges in groundwater modeling is the prediction of hydraulic head related to local stress fluctuations with a regional scale model. Typical applications of numerical models require extensive field info...
关键词：groundwater modeling local stress fluctuations perturbation method iteration scheme 
STOCHASTIC ANALYSIS OF WATER FLOW IN HETEROGENEOUS MEDIA
《Journal of Hydrodynamics》2005年第3期313-322,共10页YANGJin-zhong WANGWei-ping CAIShu-ying LIShao-long 
ProjectsupportedbytheNationalNaturalScienceFoundationofChina(GrantNos:50279039,50379042).
A stochastic model for saturated-unsaturated flow is developed based on the combination of the Karhunen-Loeve expansion of the input random soil properties with a perturbation method. The saturated hydraulic conductiv...
关键词：saturated-unsaturated flow Karhunen-Loeve (KL) expansion perturbation method stochastic numerical modeling 
PERTURBATION SOLUTION OF SECONDARY FLOW OF POWER-LAW FLUID IN HELICAL PIPES WITH CIRCULAR CROSS-SECTION被引量：1
《Journal of Hydrodynamics》2001年第4期72-78,共7页Cui Hai-qing, Wang Ke-liang Department of Petroleum Engineering, Daqing Petroleum Institute, Anda 151400, China Wu Fu-bing Department of Navy and Ocean Engineering, Harbin Engineering University, Harbin 150001, China Zheng Xiao-song Department of Pet 
In terms of tensor analysis technique, the Navier-Stokes equations in helical coordinate system were derived. A steady incompressible flow of power-law fluid in helical pipes at low Reynolds number was investigated by...
关键词：helical pipe secondary flow power-law fluid perturbation method 
THE FLOW IN ROTATING CURVED CIRCULAR PIPE被引量：6
《Journal of Hydrodynamics》2000年第1期108-116,共9页Zhang Jin suo, Shen Xin rong, Zhang Ben zhao Department of Mechanics, Zhejiang University, Hangzhou 310027, P.R.China 
The combined effects of the system rotation (Coriolis force) and curvature (centrifugal force) on the flow in rotating curved circular pipe with small curvature are examined by perturbation method. A second order per...
关键词：secondary flow curved pipe perturbation method 
STEADY ENTRANCE FLOW IN A STRAIGHT CIRCULAR PIPE WITH SLOWLY VARYING CROSS SECTION
《Journal of Hydrodynamics》1999年第2期1-13,共13页Liao Dong-hua Huang Min（Xi’an Jiaotong Universidy, Xi’an 710049, P. R. China）Kuang Zhen-bang（Shanghai Jiaotong University, Shanghai 200240, P. R. China） 
A pertubation method for the steady entrance flow through a convergingdiverging pipe, which can model an arterial stenosis at the initial stage, is presented. Aset of formulas for velocity, pressure and wall shear str...
关键词：circular pipe STENOSIS developing flow developed flow perturbation method 
NEARLY VERTICAL WATER ENTRY OF A DISK-CYLINDER
《Journal of Hydrodynamics》1993年第4期97-103,共7页Zhang Zhi-rong China Ship Scientific Research Center,Wuxi 214082,P.R.ChinaHe You-sheng Ye Qu-yuan Shanghai Jiaotong University,Shanghai 200030,P.R.China 
The Project is Supported by the National Natural Science Foundation of China.
A 3-D nonlinear,unsteady free surface problem of nearly vertical water entry of a disk-cylinder is investigated in this paper.By using a modified perturbation method and the Fourier cosine expansion method,the origina...
关键词：water entry perturbation method CAVITY 
DEFORMATION AND BREAKINC OF NONLINEAR WAVE IN WATER OF GRADUALLY VARYING DEPTH
《Journal of Hydrodynamics》1992年第3期6-16,共11页Li Rong-qing Zhao Yao-nan Department of Hydraulic Engineering,Tian jin University,Tianjin 300072,P.R.China 
Based upon the perturbation method,this paper used the method of conformal mapping to solve the deformation and breaking of nonlinear waves in water of gradually varying depth.The wave characteristics,such as wave def...
关键词：non-linear wave wave deformation wave breaking perturbation method. 
NONLINEAR INTERFACIAL CAPILLARY-GRAVITY WAVES IN SHEAR FLOW
《Journal of Hydrodynamics》1992年第1期106-116,共11页Zhu Yong Laboratory for Nonlinear Mechanics of Continuous Media,Inst.of Mech.CAS,Beijing 100080,P.R.China 
On leave from Shanghai Institute of Applied Mathematics and Mechanics;Shanghai University of Technology,Shanghai 200072,P.R.China.
In this paper,the capillary-gravity solitary waves in a two-fluid system with shear flow are theoretically investigated.Three cases are considered.For the first case(the nor- mal case),the KdV equation,with the effect...
关键词：nonlinear wave perturbation method shear flow 
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