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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 settledthickness, and the detailed changing characteristics of slug length and settled layer thickness with air velocityThe 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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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 fieldsand the velocity evenness at the exit of the inlet box.that 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 to

Keywords： box     velocity distribution     accordance     Numerical     variation    

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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 results indicated that the Froude number and the longitudinal average velocity increased along the

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

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The Influence of Flow Velocity on Response Sensitivity of Smoke Detectors

Xie Qiyuan,Su Guofeng,Yuan Hongyong,Zhang Yongming

Strategic Study of CAE 2005, Volume 7, Issue 11,   Pages 76-80

Abstract: of the work was to evaluate the performance of photoelectric and ionic smoke detectors at different flowThat was accomplished through a series of experiments at different flow velocity, with the same smolderingresults indicate that the sensitivity of the two kinds of smoke detectors decreases sharply while the flowvelocity around them increases, with the smoldering cottons in the box.Accordingly, the ionization smoke detector is more suitable for those locations with high flow velocity

Keywords： flow velocity     smoke detectors     smoke particle     size distribution of particles    

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The investigation of pressure drop in moving-beds

CHEN Yunhua, ZHU Xuedong, WU Yongqiang, ZHU Zibin

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 184-189 doi: 10.1007/s11705-007-0034-4

Abstract: The pressure drop of a cross-flow moving-bed was investigated in a two-dimensional rectangular apparatusThe effects of the particle velocity, the superficial gas velocity, the formation and development ofand 0.95 9.68 cm/min of the particle velocity.The experimental results show that the particle velocity has little influence on the pressure drop, whilethe phenomena of cavity and pinning occur when the cross-flow velocity is high enough.

Keywords： development     cross-flow velocity     superficial     qualitative account     stabilization    

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Discrete element method modeling of corn-shaped particle flow in rectangular hopper

He TAO, Baosheng JIN, Wenqi ZHONG, Xiaofang WANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 267-275 doi: 10.1007/s11709-010-0035-0

Abstract: Discrete element method (DEM) was developed to simulate the corn-shaped particles flow in the hopper.The effect of friction coefficient on the wall pressure, voidage and velocity distribution was analyzedAnd the velocity distribution is more uniformity and is closer to the mass flow with the friction coefficient

Keywords： element          method         (DEM)             non-spherical     voidage     pressure     velocity    

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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 flow, 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 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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Image analyses for video-based remote structure vibration monitoring system

Yang YANG,Xiong (Bill) YU

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1,   Pages 12-21 doi: 10.1007/s11709-016-0313-6

Abstract: This paper presents system and analyses to monitor the vibration velocity and displacement field.Three different methods (i.e., frame difference method, particle image velocimetry, and optical FlowThe results indicate that all three methods can estimate the velocity field of the model building, althoughOptical flow method achieved the best performance among these three methods studied.

Keywords： structure health monitoring     velocity estimation     frame difference     PIV     optical-flow method    

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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: , 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.The flow velocity inside and downstream from the cages decreased with increasing number of net cages.

Keywords： net cage     ADV     PIV     velocity     flow-field distribution    

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Prediction of the shear wave velocity

Amoroso SARA

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 83-92 doi: 10.1007/s11709-013-0234-6

Abstract: The paper examines the correlations to obtain rough estimates of the shear wave velocity from non-seismic

Keywords： horizontal stress index     shear wave velocity     flat dilatometer test     cone penetration test    

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Numerical Simulation of Static Behavior of the Single Anchor Cable

Teng Bin1,Hao Chunling,Han Ling

Strategic Study of CAE 2005, Volume 7, Issue 1,   Pages 21-26

Abstract: loads of the anchor cable and the displacement at the top of anchor cable, the water depth, and the velocityof flow on the different conditions.

Keywords： piecewise extrapolating method     single anchor cable     displacement     velocity of flow     water depth    

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Flow, thermal, and vibration analysis using three dimensional finite element analysis for a flux reversal

B. VIDHYA,K. N. SRINIVAS

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 424-440 doi: 10.1007/s11708-016-0423-9

Abstract: three-dimensional finite element analysis (FEA) based CFD technique for finding the spread of pressure and air velocityThus, in this focus, a flow analysis assisted thermal analysis is presented to predict the steady state

Keywords： flux reversal generator     air velocity     computation fluid dynamics     thermal analysis     vibration analysis     finite    

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CFD simulation of the hydrodynamics in an internal air-lift reactor with two different configurations

Mona EBRAHIMIFAKHAR, Elmira MOHSENZADEH, Sadegh MORADI, Mostafa MORAVEJI, Mahmoud SALIMI

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 455-462 doi: 10.1007/s11705-011-1116-x

Abstract: A two-phase flow model provided by the bubbly flow application mode was employed in this project.Simulated gas holdup and liquid circulation velocity results were compared with experimental data.

Keywords： airlift reactor     gas holdup     liquid circulation velocity     bubbly flow     computational fluid dynamics (CFD)    

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High velocity impact of metal sphere on thin metallic plate using smooth particle hydrodynamics (SPH)

Hossein ASADI KALAMEH, Arash KARAMALI, Cosmin ANITESCU, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 101-110 doi: 10.1007/s11709-012-0160-z

Abstract: The modeling of high velocity impact is an important topic in impact engineering.The goal is to study the most sensitive input parameters (impact velocity and plate thickness) on the

Keywords： smoothed particle hydrodynamics     high velocity impact     sensitivity analysis    

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Experimental study on velocity characteristics of recirculation zone in humid air non-premixed flame

GU Xin, ZANG Shusheng, GE Bing

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 140-144 doi: 10.1007/s11708-008-0037-y

Abstract: To examine the effect of the flow field within the recirculation zone on flame structure, the characteristicvelocity fields of methane/humid air flame in non-premixed combustion behind a disc bluff-body burnerdistance of the two stagnation points in humid air combustion shortens, and the minimal dimensionless velocityThe analysis of axial minimal velocities on the centerline and their positions under different co-flowair velocity conditions reveals that fuel-to-air velocity ratio is the crucial parameter that governs

Keywords： distance     bluff-body     fuel-to-air velocity     stagnation     parameter    

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Title Author Date Type Operation

Simulation of horizontal slug-flow pneumatic conveying with kinetic theory

GU Zhengmeng, GUO Liejin

Journal Article

Effect of inlet box on performance of axial flow fans

LI Jingyin, TIAN Hua, YUAN Xiaofang

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 Influence of Flow Velocity on Response Sensitivity of Smoke Detectors

Xie Qiyuan,Su Guofeng,Yuan Hongyong,Zhang Yongming

Journal Article

The investigation of pressure drop in moving-beds

CHEN Yunhua, ZHU Xuedong, WU Yongqiang, ZHU Zibin

Journal Article

Discrete element method modeling of corn-shaped particle flow in rectangular hopper

He TAO, Baosheng JIN, Wenqi ZHONG, Xiaofang 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

Image analyses for video-based remote structure vibration monitoring system

Yang YANG,Xiong (Bill) YU

Journal Article

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

Prediction of the shear wave velocity

Amoroso SARA

Journal Article

Numerical Simulation of Static Behavior of the Single Anchor Cable

Teng Bin1,Hao Chunling,Han Ling

Journal Article

Flow, thermal, and vibration analysis using three dimensional finite element analysis for a flux reversal

B. VIDHYA,K. N. SRINIVAS

Journal Article

CFD simulation of the hydrodynamics in an internal air-lift reactor with two different configurations

Mona EBRAHIMIFAKHAR, Elmira MOHSENZADEH, Sadegh MORADI, Mostafa MORAVEJI, Mahmoud SALIMI

Journal Article

High velocity impact of metal sphere on thin metallic plate using smooth particle hydrodynamics (SPH)

Hossein ASADI KALAMEH, Arash KARAMALI, Cosmin ANITESCU, Timon RABCZUK

Journal Article

Experimental study on velocity characteristics of recirculation zone in humid air non-premixed flame

GU Xin, ZANG Shusheng, GE Bing

Journal Article