Resource Type

Journal Article 560

Year

2024 2

2023 25

2022 27

2021 29

2020 27

2019 27

2018 21

2017 21

2016 25

2015 17

2014 16

2013 23

2012 19

2011 36

2010 39

2009 33

2008 39

2007 46

2006 19

2005 15

open ︾

Keywords

numerical simulation 70

simulation 63

dynamic simulation 10

Simulation 9

Numerical simulation 8

computer simulation 6

molecular dynamics simulation 6

CFD simulation 5

experiment 5

modeling 4

process simulation 4

visual simulation 4

CFD 3

CO2 capture 3

Molecular dynamics simulation 3

modeling and simulation 3

system simulation 3

temperature 3

Aspen Plus 2

open ︾

Search scope:

排序： Display mode:

Simulation analysis of pressure regulation of hydraulic thrust system on a shield tunneling machine

Zhibin LIU, Haibo XIE, Huayong YANG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 377-382 doi: 10.1007/s11465-011-0226-y

Abstract:

Hydraulic thrust system is an important system in a shield tunneling machine.In this paper, a hydraulic thrust system is explained, and a corresponding simulation model is carried

Keywords： tunnel     hydraulic thrust system     pressure regulation     simulation    

HTML PDF Collect

Design approach for single piston hydraulic free piston diesel engines

Wei WU, Shihua YUAN, Jibin HU, Chongbo JING,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 371-378 doi: 10.1007/s11465-009-0069-y

Abstract: The operating characteristics of a single piston hydraulic free piston diesel engine differ significantlyThe design of the proposed engine intended as a power supply for a hydraulic propulsion vehicle is presentedThe flow capacity characteristics of the hydraulic valves on the prototype engine are offered.

Keywords： free piston engine (FPE)     diesel engine     hydraulic equipment     simulation     experiment    

HTML PDF Collect

Passive convergence-permeable reactive barrier (PC-PRB): An effective configuration to enhance hydraulic

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1591-y

Abstract:

● A novel PRB configuration based on passive convergent flow effect was proposed.

Keywords： convergence-permeable reactive barrier (PC-PRB)     Permeable reactive barrier configuration     Numerical simulation     Hydraulic performance evaluation     Sensitivity analysis    

HTML PDF Collect

Stable expression and control parameters in the numerical simulation of unsaturated flow

Zhiyuan ZHANG; Xu LI; Yongkang WU; Xiaokang LI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1501-1514 doi: 10.1007/s11709-022-0893-2

Abstract: For the h-form Richards’ equation, the hydraulic conductivity of the soil in the low-suction rangeIn addition, sensitivity analyses indicated that the saturated hydraulic conductivity, initial condition, and air-entry pressure have a higher sensitivity to the simulation results than the saturated watercontent, rainfall intensity, and decline rate of hydraulic conductivity.

Keywords： Richards’ equation     sensitivity analysis     unsaturated soil     hydraulic diffusivity     seepage simulation    

HTML PDF Collect

CFD Simulation of thermal hydraulic characteristics in a typical upper plenum of RPV

Mingjun WANG, Lianfa WANG, Yingjie WANG, Wenxi TIAN, Jian DENG, Guanghui SU, Suizheng QIU

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 930-945 doi: 10.1007/s11708-021-0728-1

Abstract: A comparative computational fluid dynamics (CFD) study was conducted on the three different types of pressurized water reactor (PWR) upper plenum, named TYPE 1 (support columns (SCs) and control rod guide tubes (CRGTs) with two large windows), TYPE 2 (SCs and CRGTs without windows), and TYPE 3 (two parallel perforated barrel shells and CRGTs). First, three types of upper plenum geometry information were collected, simplified, and adopted into the BORA facility, which is a 1/5 scale system of the four-loop PWR reactor. Then, the geometry, including the upper half core, upper plenum region, and hot legs, was built using the platform. After that, an unsteady calculation to simulate the reactor balance operation at hot full power scenario was performed. Finally, the differences of flowrate distribution at the core outlet and temperature distribution and transverse velocity inside the hot legs with different upper plenum internals were compared. The results suggest that TYPE 1 upper plenum internals cause the largest flowrate difference at the core outlet while TYPE 3 leads to the most even distributed flowrate. The distribution and evolution pattern of the tangential velocity inside hot legs is highly dependent on the upper plenum internals. Two counter-rotating swirls exist inside the TYPE 1 hot leg and only one swirl revolving around the hog leg axis exist inside the TYPE 2 hot leg. For TYPE 3, two swirls like that of TYPE 1 rotating around the hot leg axis significantly increase the temperature homogenization speed. This research provides meaningful guidelines for the future optimization and design of advanced PWR upper plenum internal structures.

Keywords： pressurized water reactor (PWR)     upper plenum     internal structures     temperature distribution     computational fluid dynamics (CFD)    

HTML PDF Collect

Dynamical Modeling and Numerical Simulation of the Environmentally Friendly Water Hydraulic Percussive

Yue Wenhui,Liu Deshun,Wu xianming,Zhu Pingyu,Li Xibing

Strategic Study of CAE 2007, Volume 9, Issue 8,   Pages 57-61

Abstract:

In this paper,  an environmentally friendly hydraulic percussivedynamics of the percussive drill is modeled by means of elastic bars and springs,  and microcomputer simulationof YST-25 environmentally friendly water hydraulic percussive drill is performed. The performances of YST-25 environmentally friendly water hydraulic percussive drill are evaluated The suggestions can improve the design of environmentally friendly hydraulic percussive drill.

Keywords： impact     wave mechanics     simulation     water hydraulic percussive drill    

HTML PDF Collect

Development of the Special Missile Equipment and Simulation Training System

Huang Xianxiang,Xie Jian,Gao Qinhe

Strategic Study of CAE 2001, Volume 3, Issue 2,   Pages 65-70

Abstract: Advanced techniques in many subjects are adopted synthetically in the Special Missile Equipment and SimulationMathematical, physical and network models are built, about one hundred apparatus are manufactured, and the simulationMain technical problems in the design of the large and highly credible hydraulic system, the realization

Keywords： missile     simulation training     hydraulic system     subdivision control     electromagnetic compatibility    

HTML PDF Collect

A novel methodology for forecasting gas supply reliability of natural gas pipeline systems

Feng CHEN, Changchun WU

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 213-223 doi: 10.1007/s11708-020-0672-5

Abstract: proposed based on the Monte Carlo method, statistical analysis, mathematical-probabilistic analysis, and hydraulicsimulation.In the second stage, hydraulic simulation is conducted to calculate the flow rate in each typical scenario

Keywords： natural gas pipeline system     gas supply reliability     evaluation index     Monte Carlo method     hydraulic simulation    

HTML PDF Collect

Resistance of large caisson in floating transport considering the influence of air

Junjie ZHENG, Zongzhe LI, Dongan ZHAO, Qiang MA, Rongjun ZHANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 331-338 doi: 10.1007/s11709-010-0085-3

Abstract: This paper deals with the floating resistance of super large caisson by numerical simulation, and theThis simulation adopts the volume of fluid (VOF) model with water-air two-phase flow, which can takeboth the hydraulic resistance and air resistance into account.Subsequently, the analyses on hydraulic resistance and air resistance under different working conditions

Keywords： large-scale caisson     numerical simulation     hydraulic resistance     air resistance    

HTML PDF Collect

Multiobjective trajectory optimization of intelligent electro-hydraulic shovel

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0706-2

Abstract: consumption, execution time, and excavation volume as the objective functions is presented for the electro-hydraulicThe performance of the proposed strategy is validated and analyzed by a series of simulation and experimental

Keywords： trajectory planning     electro-hydraulic shovel     cubic polynomial S-curve     multiobjective optimization    

HTML PDF Collect

Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic

Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 127-138 doi: 10.1007/s11708-020-0661-8

Abstract: This paper investigated effects of slip length and hydraulic diameter on the hydraulic entrance lengthIt is found that superhydrophobic microchannels have a longer hydraulic entrance length than that ofThe dimensionless hydraulic entrance length slightly increases with the increasing slip length at approximatelyRe<10, and does not vary with the hydraulic diameter.

Keywords： laminar flow     hydraulic entrance length     super hydrophobic surface     slip length     hydraulic diameter    

HTML PDF Collect

Research on 3D Dynamic Visual Graphic Simulation for Construction Layout of Xiluodu Project

Zhong Denghua,Zhu Huirong,Zheng Jiaxiang

Strategic Study of CAE 2003, Volume 5, Issue 11,   Pages 65-70

Abstract: hydroelectric plant is the biggest plant to be built on Jinsha River, and also, Xiluodu project is the biggest hydraulicFlow of the 3D dynamic graphic simulation data is designed.Dynamic graphic simulation data can be divided into graphic data and attribute data, which organizedvisual digital model for construction layout is built, which itself is an important part of digital hydraulicsimulation data are realized with this digital model.

Keywords： Xiluodu Project     construction layout     graphic simulation     geographic information system     digital hydraulic    

HTML PDF Collect

Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1564-1

Abstract:

● A new model for bloom control in open land scape water was constructed.

Keywords： Reclaimed water landscape     Algal bloom     Nitrogen and phosphorus     Hydraulic retention time     Threshold    

HTML PDF Collect

Hydromechanical model for hydraulic fractures using XFEM

Bo HE

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 240-249 doi: 10.1007/s11709-018-0490-6

Abstract: In this study, a hydromechanical model for fluid flow in fractured porous media is presented. We assume viscous fluids and the coupling equations are derived from the mass and momentum balance equations for saturated porous media. The fluid flow through discrete cracks will be modelled by the extended finite element method and an implicit time integration scheme. We also present a consistent linearization of the underlying non-linear discrete equations. They are solved by the Newton-Raphson iteration procedure in combination with a line search. Furthermore, the model is extended to includes crack propagation. Finally, examples are presented to demonstrate the versatility and efficiency of this two-scale hydromechanical model. The results suggest that the presence of the fracture in a deforming, porous media has great impact on the fluid flow and deformation patterns.

Keywords： multi-phase medium     porous     fracture     multi-scale method    

HTML PDF Collect

Review of fluid and control technology of hydraulic wind turbines

Maolin CAI, Yixuan WANG, Zongxia JIAO, Yan SHI

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 312-320 doi: 10.1007/s11465-017-0433-2

Abstract:

This study examines the development of the fluid and control technology of hydraulic wind turbinesThe current state of hydraulic wind turbines as a new technology is described, and its basic fluid modelFinally, the advantages of hydraulic wind turbines are enumerated.Hydraulic wind turbines are expected to become the main development direction of wind turbines.

Keywords： wind turbine     hydraulic system     fluid model     control technology    

HTML PDF Collect

Title Author Date Type Operation

Simulation analysis of pressure regulation of hydraulic thrust system on a shield tunneling machine

Zhibin LIU, Haibo XIE, Huayong YANG

Journal Article

Design approach for single piston hydraulic free piston diesel engines

Wei WU, Shihua YUAN, Jibin HU, Chongbo JING,

Journal Article

Passive convergence-permeable reactive barrier (PC-PRB): An effective configuration to enhance hydraulic

Journal Article

Stable expression and control parameters in the numerical simulation of unsaturated flow

Zhiyuan ZHANG; Xu LI; Yongkang WU; Xiaokang LI

Journal Article

CFD Simulation of thermal hydraulic characteristics in a typical upper plenum of RPV

Mingjun WANG, Lianfa WANG, Yingjie WANG, Wenxi TIAN, Jian DENG, Guanghui SU, Suizheng QIU

Journal Article

Dynamical Modeling and Numerical Simulation of the Environmentally Friendly Water Hydraulic Percussive

Yue Wenhui,Liu Deshun,Wu xianming,Zhu Pingyu,Li Xibing

Journal Article

Development of the Special Missile Equipment and Simulation Training System

Huang Xianxiang,Xie Jian,Gao Qinhe

Journal Article

A novel methodology for forecasting gas supply reliability of natural gas pipeline systems

Feng CHEN, Changchun WU

Journal Article

Resistance of large caisson in floating transport considering the influence of air

Junjie ZHENG, Zongzhe LI, Dongan ZHAO, Qiang MA, Rongjun ZHANG,

Journal Article

Multiobjective trajectory optimization of intelligent electro-hydraulic shovel

Journal Article

Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic

Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG

Journal Article

Research on 3D Dynamic Visual Graphic Simulation for Construction Layout of Xiluodu Project

Zhong Denghua,Zhu Huirong,Zheng Jiaxiang

Journal Article

Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom

Journal Article

Hydromechanical model for hydraulic fractures using XFEM

Bo HE

Journal Article

Review of fluid and control technology of hydraulic wind turbines

Maolin CAI, Yixuan WANG, Zongxia JIAO, Yan SHI

Journal Article