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Combined Application of Wide-Field Electromagnetic Method and Flow Field Fitting Method for High-Resolution Article

Jishan He

Engineering 2018, Volume 4, Issue 5,   Pages 667-675 doi: 10.1016/j.eng.2018.09.006

Abstract: and the water distribution in the mine by separate use of various exploration methods such as seismic methodTo solve this difficult problem, a combination of the wide-field electromagnetic method and the flowfield fitting method with three-dimensional resistivity data inversion was applied to determine the precise

Keywords： Wide-field electromagnetic method     Flow field fitting method     Goaf     Water abundance     High-resolution exploration    

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The study of slip line field and upper bound method based on the non-associated flow rule

Zheng Yingren,Deng Chujian,Wang Jinglin

Strategic Study of CAE 2010, Volume 12, Issue 8,   Pages 56-69

Abstract:

The slip line field theory and the upper bound method based on the associatedIn this paper some problems existing in the slip line field theory and the upper bound method based onthe associated flow rule were analyzed.The slip line field theory and the upper bound method based on the non-associated flow rule were deducedtheory and the upper bound method based on the associated flow rule for the traditional plastic theory

Keywords： slip line field     upper bound method     associated flow rule     non-associated flow rule     generalized plastic    

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Analytical solutions of three-dimensional contaminant transport in uniform flow field in porous media

Hongtao WANG, Huayong WU

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 112-128 doi: 10.1007/s11783-008-0067-z

Abstract: present a library of analytical solutions for the three-dimensional contaminant transport in uniform flowfield in porous media with the first-order decay, linear sorption, and zero-order production.The library is constructed using Green's function method (GFM) in combination with available solutionswidely applicable to solve contaminant transport problems of one- or multiple- dimensions in uniform flow

Keywords： contaminant transport     analytical solution     dispersion and advection     porous media     type curve     Green's function method    

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A New Explicit Equation for Calculating the Friction Factor for the Turbulent Flow in Pipes

Wang Yong,Yuan Qi

Strategic Study of CAE 2006, Volume 8, Issue 6,   Pages 83-88

Abstract:

The friction factor for the turbulent flow in pipes is the binary nonlinear function of Reynolds numberimplicit Colebrook equation have to use iterative algorithm, which is discommodious.The intelligent fittingmethod for binary nonlinear polynomials was presented in order to obtain a high precise and simple formFitting the data calculated by Colebrook equation with the above method, a new explicit equation forcalculating the friction factor for the turbulent flow in pipes was obtained.

Keywords： turbulent flow     friction factor     implicit Colebrook equation     genetic algorithms     intelligent fitting method    

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Numerical study of internal flow field and flow passage improvement of an inlet particle separator

Florian PAOLI, Tong WANG

Frontiers in Energy 2011, Volume 5, Issue 4,   Pages 386-397 doi: 10.1007/s11708-011-0156-8

Abstract: By performing gas flow field numerical simulations for several inlet Reynolds numbers (from 2 × 10No particle has been included in the gas flow for a -epsilon turbulence model.Then the flow passage improvement method has focused on the separation area.As a result, the numerical calculations demonstrate that the flow passage improvement method appliedin this study has succeeded in designing a shape which enhances the flow behavior.

Keywords： streamlines     pressure losses     flow passage improvement     inlet particle separator (IPS)    

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Method of internal 3D flow field numerical simulation for hydrodynamic torque converter

SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 86-90 doi: 10.1007/s11465-008-0012-7

Abstract: , a numerical simulation method of internal 3D flow for the three-element centrifugal hydrodynamic torqueFirst, the internal flow field of each impeller was calculated.The flow field of a working point was solved by multiple calculations and the actual working conditionThe pressure and velocity distributions of the flow field were proposed.The calculation method, and the proposed pressure and velocity distribution of the flow field, have practical

Keywords： velocity distribution     calculation     numerical simulation     three-element centrifugal     converter    

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The computational fluid dynamic modeling of downwash flow field for a six-rotor UAV

Yongjun ZHENG, Shenghui YANG, Xingxing LIU, Jie WANG, Tomas NORTON, Jian CHEN, Yu TAN

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 2,   Pages 159-167 doi: 10.15302/J-FASE-2018216

Abstract: The downwash flow field of the multi-rotor unmanned aerial vehicle (UAV), formed by propellers duringthe general characteristics of the distribution of the downwash airflow and simulate the static wind fieldThe entire flow field surrounding the UAV and the rotation flow fields around the six rotors were establishedThe physical model and flow fields were meshed using unstructured tetrahedral elements in ANSYS softwareFinally, the downwash flow field of UAV was simulated.

Keywords： CFD simulation     downwash flow field     numerical analysis     plant protection     six-rotor UAV    

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Investigation into the influence of diffuser stagger angles on the flow field and performance of a centrifugal

XI Guang, DING Haiping, YUAN Minjian, ZHANG Chunmei, ZHOU Li

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 290-294 doi: 10.1007/s11708-007-0041-7

Abstract: measured, and the influence of different stagger angles of vanes on the stage performance as well as flowfield was investigated numerically.field inside the centrifugal compressor is great.An optimal diffuser stagger angle should exist at a specified flow rate to make the characteristic ofthe flow optimized.

Keywords： diffuser stagger     incidence     different stagger     flow     centrifugal compressor    

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A FEniCS implementation of the phase field method for quasi-static brittle fracture

HIRSHIKESH, Sundararajan NATARAJAN, Ratna Kumar ANNABATTULA

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 380-396 doi: 10.1007/s11709-018-0471-9

Abstract: In the recent years, the phase field method for simulating fracture problems has received considerableThis is due to the salient features of the method: 1) it can be incorporated into any conventional finiteThe present work discusses the implementation of the phase field method for brittle fracture within the

Keywords： phase field method     FEniCS     brittle fracture     crack propagation     variational theory of fracture    

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Separation mechanism for double cylinder with shrink fitting system used for ceramics conveying rollers

Wenbin LI, Hiromasa SAKAI, Shota HARADA, Yasushi TAKASE, Nao-Aki NODA

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 277-286 doi: 10.1007/s11465-011-0234-y

Abstract: structure was considered which has a ceramics sleeve connected with two steel shafts at both ends by shrink fittingfive times larger than that of ceramics, it is necessary to investigate how to separate the shrink fittinginvestigated to understand the separation mechanism of real roller by the application of the finite element method

Keywords： contact     ceramics     thermal stress     heating     finite element method    

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Numerical simulation of air flow field in high-pressure fan with splitter blades

LI Jianfeng, LU Junfu, ZHANG Hai, LIU Qing, YUE Guangxi

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 438-442 doi: 10.1007/s11708-008-0085-3

Abstract: For a deeper understanding of the flow characteristics in the high-pressure centrifugal blower of a fanUnder operational conditions, with the presence of splitter blades, the air flow rate of the fan increasedIt was also found that the length of the splitter blades affected the air flow and pressure drop.

Keywords： splitter     numerical simulation     presence     unstructured     operational    

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A MATLAB code for the material-field series-expansion topology optimization method

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 607-622 doi: 10.1007/s11465-021-0637-3

Abstract: This paper presents a MATLAB implementation of the material-field series-expansion (MFSE) topo-logy optimizationmethod.The MFSE method uses a bounded material field with specified spatial correlation to represent the structuralWith the series-expansion method for bounded fields, this material field is described with the characteristicCompared with the conventional density-based method, the MFSE method decouples the topological description

Keywords： MATLAB implementation     topology optimization     material-field series-expansion method     bounded materialfield     dimensionality reduction    

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3D interpolation-approximation fitting construction method for complex geological surfaces

Li Mingchao,Miao Zhengjian,Liu Fei,Wang Gang

Strategic Study of CAE 2011, Volume 13, Issue 12,   Pages 103-107

Abstract:

Based on multi-source data, a fitting geological surface is requiredThe algorithm adopts the skinning method for densely and uniformly distributed data in the key regionFor the discrete data in the peripheral region, NURBS approximation fitting method is used to construct

Keywords： geological surface     interpolation-approximation fitting     3D construction     multi-source geological data    

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Applying the spectral stochastic finite element method in multiple-random field RC structures

Abbas YAZDANI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 434-447 doi: 10.1007/s11709-022-0820-6

Abstract: This paper uses the spectral stochastic finite element method (SSFEM) for analyzing reinforced concreteIn doing so, it presents a new framework to study how the correlation length of a random field (RF) with

Keywords： uncertainty     spectral stochastic finite element method     correlation length     reliability assessment     reinforced    

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Multiscale stochastic finite element method on random field modeling of geotechnical problems – a fast

Xi F. XU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 107-113 doi: 10.1007/s11709-014-0268-4

Abstract: The Green-function-based multiscale stochastic finite element method (MSFEM) has been formulated basedIn this study a fast computing procedure based on the MSFEM is developed to solve random field geotechnicalsettlement shows that the procedure achieves significant computing efficiency compared with Monte Carlo method

Keywords： multiscale     finite element     settlement     perturbation     random field     geotechnical    

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Title Author Date Type Operation

Combined Application of Wide-Field Electromagnetic Method and Flow Field Fitting Method for High-Resolution

Jishan He

Journal Article

The study of slip line field and upper bound method based on the non-associated flow rule

Zheng Yingren,Deng Chujian,Wang Jinglin

Journal Article

Analytical solutions of three-dimensional contaminant transport in uniform flow field in porous media

Hongtao WANG, Huayong WU

Journal Article

A New Explicit Equation for Calculating the Friction Factor for the Turbulent Flow in Pipes

Wang Yong,Yuan Qi

Journal Article

Numerical study of internal flow field and flow passage improvement of an inlet particle separator

Florian PAOLI, Tong WANG

Journal Article

Method of internal 3D flow field numerical simulation for hydrodynamic torque converter

SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong

Journal Article

The computational fluid dynamic modeling of downwash flow field for a six-rotor UAV

Yongjun ZHENG, Shenghui YANG, Xingxing LIU, Jie WANG, Tomas NORTON, Jian CHEN, Yu TAN

Journal Article

Investigation into the influence of diffuser stagger angles on the flow field and performance of a centrifugal

XI Guang, DING Haiping, YUAN Minjian, ZHANG Chunmei, ZHOU Li

Journal Article

A FEniCS implementation of the phase field method for quasi-static brittle fracture

HIRSHIKESH, Sundararajan NATARAJAN, Ratna Kumar ANNABATTULA

Journal Article

Separation mechanism for double cylinder with shrink fitting system used for ceramics conveying rollers

Wenbin LI, Hiromasa SAKAI, Shota HARADA, Yasushi TAKASE, Nao-Aki NODA

Journal Article

Numerical simulation of air flow field in high-pressure fan with splitter blades

LI Jianfeng, LU Junfu, ZHANG Hai, LIU Qing, YUE Guangxi

Journal Article

A MATLAB code for the material-field series-expansion topology optimization method

Journal Article

3D interpolation-approximation fitting construction method for complex geological surfaces

Li Mingchao,Miao Zhengjian,Liu Fei,Wang Gang

Journal Article

Applying the spectral stochastic finite element method in multiple-random field RC structures

Abbas YAZDANI

Journal Article

Multiscale stochastic finite element method on random field modeling of geotechnical problems – a fast

Xi F. XU

Journal Article