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Experimental study on flow-field effect of circular gravity cage

Liu Chao,Guan Changtao,Cui Yong,Zhao Xia,Li Mengjie,Li Zhenzhen,Wang Tengteng

Strategic Study of CAE 2014, Volume 16, Issue 9,   Pages 69-77

Abstract: text-align: justify;">In order to understand hydrodynamic characteristics of circular gravity cage in varied flow-field, and obtain both the flow-velocity variations and flow-field distribution inside and around cages, fourThe ratio of flow-velocity reduction inside a cage remained approximately the same in different currentOn the effect of the flow-velocity reduction ,the cages with small mesh did better than the cages withAs current flowed through multiple cages, the flow velocity was gradually reduced.

Keywords： net cage     ADV     PIV     velocity     flow-field distribution    

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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: enhance the performance of a hydrodynamic torque converter and thoroughly understand the trait of inside flowFirst, 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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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.The velocity distribution in different sections and the pressure coefficient along the duct have beenThen the flow passage improvement method has focused on the separation area.in 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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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 duringoperation, has a significant influence on the deposition, drift and distribution of droplets as wellTo study the general characteristics of the distribution of the downwash airflow and simulate the staticThe entire flow field surrounding the UAV and the rotation flow fields around the six rotors were establishedFinally, 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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Simulation of horizontal slug-flow pneumatic conveying with kinetic theory

GU Zhengmeng, GUO Liejin

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 336-340 doi: 10.1007/s11708-007-0050-6

Abstract: Wavelike slug-flow is a representative flow type in horizontal pneumatic conveying.Kinetic theory was introduced to establish a 3D kinetic numerical model for wavelike slug gas-solid flowThe characteristics of the flow, such as pressure drop, air velocity distribution, slug length and settledindicate that kinetic theory can represent the physical characteristics of the non-suspension dense phase flowThe experiment in this paper introduced a new idea for the numerical calculation of slug-flow pneumatic

Keywords： velocity distribution     detailed     slug-flow     gas-solid     theory    

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The Study on Steady Flow and Transient Flow Mathematical Models for City’s Water Distribution Pipeline

Wang Shoudong,Shen Yongming,Jiang Hengzhi

Strategic Study of CAE 2007, Volume 9, Issue 12,   Pages 26-30

Abstract:

Firstly,  based on node equation method,  a water distributionpipeline network steady flow mathematical model is established and is solved by using the Newton iteration Secondly,  the mathematic model for transient flow set up by characteristic method can beresults are that these models can be applied to hydraulic balance calculation for city's water distribution

Keywords： water distribution pipeline network     steady flow     transient flow     water hammer     Newton’s iteration 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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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: Anjialing No. 1 Coal Mine in Shanxi Province, China, contains a complicated old goaf and an unknown water distributiondetection resolution, previous attempts have failed to determine the scope of the old goaf and the water distributionTo 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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Three-dimensional numerical simulation of flow in trapezoidal cutthroat flumes based on FLOW-3D

Danjie RAN, Wene WANG, Xiaotao HU

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 2,   Pages 168-176 doi: 10.15302/J-FASE-2018217

Abstract: To solve the common problem of flumes flow-measurement accuracy without sacrificing water head, a newUsing the computational fluid dynamic method, three-dimensional flow fields in trapezoidal cutthroatVelocity distribution of the flume obtained from simulation analyses were compared with observed resultsbased on time-averaged flow field and comparison yielded a solid agreement between results from thethe Froude number was less than 0.5, which meets the water measurement requirement, and the critical flow

Keywords： distribution of velocity     Froude number     head loss     stage-discharge relationship     trapezoidal cutthroat flume    

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The distribution of oil and gas in the global main basins

Kang Yuzhu

Strategic Study of CAE 2014, Volume 16, Issue 8,   Pages 14-25

Abstract: The distribution of oil-gas is discussed in the three major basins.

Keywords： petroliferous basin     oil and gas field     distribution of oil-gas    

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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.widely applicable to solve contaminant transport problems of one- or multiple- dimensions in uniform flow

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

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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 deducedaccording to the generalized plastic theory , which eliminated some inconsistencies in the slip line field

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

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Effect of inlet box on performance of axial flow fans

LI Jingyin, TIAN Hua, YUAN Xiaofang

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 390-394 doi: 10.1007/s11708-008-0087-1

Abstract: Numerical investigations on 3D flow fields in an axial flow fan with and without an inlet box have beenextensively conducted, focusing on the variation of fan performance caused by the internal flow fieldsthat although the inlet box is well designed in accordance with basic design principles, there is a flowFurthermore, this flow separation and the resulting uneven velocity distribution at the exit lead toThis research shows that the inlet box needs further improvement and such a check on the flow fields

Keywords： box     velocity distribution     accordance     Numerical     variation    

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Numerical Simulation and Experimental Research on Flow Field in Goaf Under the Airflow Fluctuating

Li Yongcun,Lin Aihui,Wang Haiqiao,Liu Ronghua

Strategic Study of CAE 2008, Volume 10, Issue 2,   Pages 41-45

Abstract: mechanics, the theory of aerodynamics, the theory of mass and heat transfer, and the theory of infiltration flowthrough porous media, mathematical model about airflow fluctuating in mine is established；distributionfeatures of flow field in goaf under the airflow fluctuating are researched by numerical simulation,mathematical model establi shed about airflow fluctuating in mine can be used for researching dist ribution of flowfield in goaf,and can provide an effective method to fire preve ntion and treatment in goaf.

Keywords： airflow fluctuating     mathematical model     numerical simulation     flow field in goaf    

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Title Author Date Type Operation

Experimental study on flow-field effect of circular gravity cage

Liu Chao,Guan Changtao,Cui Yong,Zhao Xia,Li Mengjie,Li Zhenzhen,Wang Tengteng

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

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

Florian PAOLI, Tong WANG

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

Simulation of horizontal slug-flow pneumatic conveying with kinetic theory

GU Zhengmeng, GUO Liejin

Journal Article

The Study on Steady Flow and Transient Flow Mathematical Models for City’s Water Distribution Pipeline

Wang Shoudong,Shen Yongming,Jiang Hengzhi

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

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

Jishan He

Journal Article

Three-dimensional numerical simulation of flow in trapezoidal cutthroat flumes based on FLOW-3D

Danjie RAN, Wene WANG, Xiaotao HU

Journal Article

The distribution of oil and gas in the global main basins

Kang Yuzhu

Journal Article

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

Hongtao WANG, Huayong WU

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

Effect of inlet box on performance of axial flow fans

LI Jingyin, TIAN Hua, YUAN Xiaofang

Journal Article

Numerical Simulation and Experimental Research on Flow Field in Goaf Under the Airflow Fluctuating

Li Yongcun,Lin Aihui,Wang Haiqiao,Liu Ronghua

Journal Article