Resource Type

Journal Article 449

Conference Videos 10

Year

2023 15

2022 33

2021 28

2020 14

2019 29

2018 18

2017 13

2016 19

2015 21

2014 19

2013 16

2012 25

2011 33

2010 40

2009 31

2008 28

2007 19

2006 8

2005 8

2004 3

open ︾

Keywords

pressure 11

bio-oil 8

numerical simulation 8

pressure drop 7

different 6

China 4

High pressure 4

coal 4

offshore oil and gas 4

stability 4

Pyrolysis 3

biomass 3

development 3

energy security 3

heavy oil 3

simulation 3

Biodiesel 2

CFD 2

Diamond anvil cell 2

open ︾

Search scope:

排序： Display mode:

Influence of boundary conditions and turntable speeds on the stability of hydrostatic oil cavity

Zhaomiao LIU, Chengyin ZHANG, Feng SHEN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 359-368 doi: 10.1007/s11465-011-0222-2

Abstract:

The flow, bearing, and carrying capacity of the cycloidal hydrostatic oil cavity in hydrostatic turntableHowever, the increase in inlet speed, depth, and inlet radius of the oil cavity causes the vortex effectto increase and the stability of oil cavity to reduce.With the increase in the oil film thickness, the carrying capacity of the oil cavity diminishes.The oil cavity pressure increases along the direction of the motion of the turntable; it is distributed

Keywords： hydrostatic oil cavity     flow state     oil cavity pressure     stability     vortex    

HTML PDF Collect

Hydraulic fracturing pressure of concentric double-layered cylinder in cohesive soil

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 937-947 doi: 10.1007/s11709-021-0754-4

Abstract: First, an analytical solution for fracturing pressure in two different concentric regions of soil waspresented based on the cavity expansion theory.First, there is a linear relationship between the fracturing pressure and confining pressure in concentricinternal-layer soil is softer than the external-layer soil, the presence of internal soil on the fracturing pressureMoreover, the influence of strength distinction between the two layers on the fracturing pressure is

Keywords： hydraulic fracturing pressure     layered     cavity expansion theory     triaxial fracturing test     cohesive soil    

HTML PDF Collect

The energesis and depressurization technology of filling solution cavity of high pressure and rich water

Zhang Mei,Zhang Minqing,Zhu Pengfei,Huang Hongjian

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 13-19

Abstract:

Filling solution cavity of high pressure and rich water have the characteristicsfeatures of abundant water, high pressure,large scale and complicated filling medium.technology, adopting the energesis and depressurization technology is advanced to father filling solution cavitydepressurization technology is adopting arranged and purposeful cccurate–blasting to open out solution cavityconstruction and to finish farthering solution cavity by related measures.

Keywords： filling solution cavity of high pressure and rich water     the energesis and depressurization technology    

HTML PDF Collect

Effects of critical geometric parameters on the optical performance of a conical cavity receiver

Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 673-683 doi: 10.1007/s11708-019-0630-2

Abstract: , the commercial software TracePro was used to investigate the effects of some factors on a conical cavityaffect the optical efficiency, the maximum heat flux density, and the light distribution in the conical cavityTo make a reliable simulation, the helical tube was attached to the inner wall of the cavity in the proposedThe conical cavity receiver had an optimal optical performance when the focal point of the collector

Keywords： parabolic collector     conical cavity receiver     critical geometric parameters     optical performance    

HTML PDF Collect

Effect of cavity defect on the triaxial mechanical properties of high-performance concrete

Yanbin ZHANG; Zhe WANG; Mingyu FENG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 5,   Pages 600-614 doi: 10.1007/s11709-022-0821-5

Abstract: This study aims to investigate the effect of the cavity and the confining pressure on the failure mechanismsintact samples without a cavity.always secondary tensile fractures initiating from the cavity sidewall.The experimental results show that both the increase of the confining pressure and the decrease of thecavity size are conducive to the initiation of sidewall fracture.

Keywords： high-performance concrete     cavity     conventional triaxial compression     pressurized liquid     modified power-law    

HTML PDF Collect

Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 74-84 doi: 10.1007/s11465-018-0490-1

Abstract: However, the melt flow process in a closed cavity becomes more complex because of the moving cavity boundaryThe melt flow and pressure distribution in the cavity were investigated by using the proposed simulationResults reveal that the fountain flow effect becomes significant when the cavity thickness increasesThe back flow also plays an important role in the flow pattern and redistribution of cavity pressure.

Keywords： injection-compression molding     simulation     injection molding     melt flow     cavity pressure    

HTML PDF Collect

Rheological behavior’s effect on the work performance of oil film

Zhaomiao LIU, Qiuying JIN, Chengyin ZHANG, Feng SHEN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 254-262 doi: 10.1007/s11465-011-0129-y

Abstract:

A 3D model of hydrostatic turntable’s oil chamber is established to investigate the lubricantsNewtonian oil and non-Newtonian oil’s performance under varied speeds are compared on the largesize hydrostatic turntable system considering the temperature-viscosity relationship and pressure-viscositynon-Newtonian fluid viscosity influenced by shear rate largely affects the lubricants performance for most oildesign a large size and high-speed hydrostatic support system, choose lubricant oils, and investigate oil

Keywords： non-Newtonian fluid     rotation speed     pressure on wall     viscosity    

HTML PDF Collect

Numerical simulation of the heat flux distribution in a solar cavity receiver

Yueshe WANG, Xunwei DONG, Jinjia WEI, Hui JIN

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 98-103 doi: 10.1007/s11708-010-0019-8

Abstract: In the design of the receiver, the heat flux distribution in the cavity should be considered first.numerical simulation using the Monte Carlo Method has been conducted on the heat flux distribution in the cavityBy tracing every solar ray, the distribution of heat flux density in the cavity receiver was obtainedThese results provide necessary data for the structure design of cavity receiver and the local thermal

Keywords： solar cavity receiver     Monte Carlo method     heat flux distribution    

HTML PDF Collect

―Summary of investigations on rotating cavity at IDG, RWTH Aachen University

Dieter BOHN, Jing REN,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 489-497 doi: 10.1007/s11708-009-0040-y

Abstract: of Steam and Gas Turbines, RWTH Aachen University, to analyze the flow structure inside the rotating cavitythe experimental and numerical results show that the whole flow structure rotating slower than the cavityIt is suggested that the vortices inside the cavity are created by the gravitational buoyancy force in

Keywords： rotating cavity     buoyancy     unsteady flow    

HTML PDF Collect

Geometric optimization model for the solar cavity receiver with helical pipe at different solar radiation

Chongzhe ZOU, Huayi FENG, Yanping ZHANG, Quentin FALCOZ, Cheng ZHANG, Wei GAO

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 284-295 doi: 10.1007/s11708-019-0613-3

Abstract: geometric parameters, several researches have already optimized the thermal efficiency of the cylindrical cavityThis study constructed a 3-D numerical model of cylindrical cavity receiver with DNI variation.In the model of a cylindrical cavity receiver containing a helical pipe, the heat losses of the cavity400 W/m to 800 W/m , there exists a best design for achieving a highest thermal efficiency of the cavity

Keywords： cylindrical cavity receiver     3-D numerical simulation     geometric optimization     direct normal irradiation    

HTML PDF Collect

Application and Prospects of Water Jet Technology in Petroleum Engineering

Shen Zhonghou,Li Gensheng,Wang Ruihe

Strategic Study of CAE 2002, Volume 4, Issue 12,   Pages 60-65

Abstract: A mathematic model of pressure and water power attenuation, under the condition of submergence and nonfreedomof water jet technology in deep-well drilling, low-permeability reservoir production, and enhanced oil

Keywords： water jet technology     oil well drilling     oil & gas production     high and ultra-high pressure jet    

HTML PDF Collect

High grade line pipe and high pressure transportation: significant progress of oil & gas transportation

Li Helin,Ji Lingkang,Tian Wei

Strategic Study of CAE 2010, Volume 12, Issue 5,   Pages 84-90

Abstract: requirement for the 1st and the 2nd West-east Gas Pipelines, investigation of strain-based design for oil

Keywords： oil & gas pipeline     grade pipeline steel     helical submerge-arc welded pipe     crack-arrest toughness     strain-based    

HTML PDF Collect

Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0676-4

Abstract: decision-making approach for the deviation correction trajectory and posture rectification load for an earth pressure

Keywords： additional position change     deviation correction trajectory     earth pressure balance shield     mechanical    

HTML PDF Collect

Biodegradable, superhydrophobic walnut wood membrane for the separation of oil/water mixtures

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 9,   Pages 1377-1386 doi: 10.1007/s11705-022-2157-z

Abstract: The preparation of environmentally friendly oil/water separation materials remains a great challenge.In addition, after cross-laminating the two samples, the films had the ability to separate oil and water

Keywords： wood nanotechnology     superhydrophobic     biodegradable     surface modification     oil/water separation    

HTML PDF Collect

Numerical simulation and experiment research of radiation performance in a dish solar collector system

Yong SHUAI, Xinlin XIA, Heping TAN

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 488-495 doi: 10.1007/s11708-010-0007-z

Abstract: applied and coupled with optical properties to predict the radiation performance of solar concentrator/cavitySeveral different cavity geometries are compared on the radiation performance.

Keywords： Monte Carlo method     solar energy     radiation performance     cavity receiver    

HTML PDF Collect

Title Author Date Type Operation

Influence of boundary conditions and turntable speeds on the stability of hydrostatic oil cavity

Zhaomiao LIU, Chengyin ZHANG, Feng SHEN

Journal Article

Hydraulic fracturing pressure of concentric double-layered cylinder in cohesive soil

Journal Article

The energesis and depressurization technology of filling solution cavity of high pressure and rich water

Zhang Mei,Zhang Minqing,Zhu Pengfei,Huang Hongjian

Journal Article

Effects of critical geometric parameters on the optical performance of a conical cavity receiver

Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ

Journal Article

Effect of cavity defect on the triaxial mechanical properties of high-performance concrete

Yanbin ZHANG; Zhe WANG; Mingyu FENG

Journal Article

Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Journal Article

Rheological behavior’s effect on the work performance of oil film

Zhaomiao LIU, Qiuying JIN, Chengyin ZHANG, Feng SHEN

Journal Article

Numerical simulation of the heat flux distribution in a solar cavity receiver

Yueshe WANG, Xunwei DONG, Jinjia WEI, Hui JIN

Journal Article

―Summary of investigations on rotating cavity at IDG, RWTH Aachen University

Dieter BOHN, Jing REN,

Journal Article

Geometric optimization model for the solar cavity receiver with helical pipe at different solar radiation

Chongzhe ZOU, Huayi FENG, Yanping ZHANG, Quentin FALCOZ, Cheng ZHANG, Wei GAO

Journal Article

Application and Prospects of Water Jet Technology in Petroleum Engineering

Shen Zhonghou,Li Gensheng,Wang Ruihe

Journal Article

High grade line pipe and high pressure transportation: significant progress of oil & gas transportation

Li Helin,Ji Lingkang,Tian Wei

Journal Article

Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Journal Article

Biodegradable, superhydrophobic walnut wood membrane for the separation of oil/water mixtures

Journal Article

Numerical simulation and experiment research of radiation performance in a dish solar collector system

Yong SHUAI, Xinlin XIA, Heping TAN

Journal Article