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Wind-induced vibration control of Hefei TV tower with fluid viscous damper
Zhiqiang ZHANG , Aiqun LI , Jianping HE , Jianlei WANG ,
《结构与土木工程前沿(英文)》 2009年 第3卷 第3期 页码 249-254 doi: 10.1007/s11709-009-0038-x
关键词: high-rise structure wind-induced response fluid viscous damper vibration control
Combined static mixers for high viscous fluids mixing
Zhenhao XI, Weizhen SUN, Ling ZHAO, Zhaoyan LIU
《化学科学与工程前沿(英文)》 2009年 第3卷 第1期 页码 93-96 doi: 10.1007/s11705-009-0112-x
关键词: static mixer Cross-over-Disc pressure drop mixing performance high viscous fluid
王立智,王云龙
《中国工程科学》 2012年 第14卷 第4期 页码 88-94
为了探索高粘稀油油藏降低储层原油粘度、提高渗流能力、增加流度,进一步研究区块加密后提高采收率的新技术、新方法,2006—2008年开展了“蒸汽驱油现场先导试验”。针对油藏原油粘度高、渗透率低、粘土含量高、有效厚度小等特点,开展了室内物模实验,进行了蒸汽驱油可行性研究;应用数值模拟技术优选了注汽参数和驱替方式;开展了地层防膨预处理和井筒隔热技术研究。现场试验3个井组,累积增油1.81×104 t。通过试验研究,给出了低渗高粘稀油油藏适合蒸汽驱油技术的地质条件。
Evaluation of a developed bypass viscous damper performance
Mahrad FAHIMINIA, Aydin SHISHEGARAN
《结构与土木工程前沿(英文)》 2020年 第14卷 第3期 页码 773-791 doi: 10.1007/s11709-020-0627-2
关键词: developed viscous damper external orifice energy dissipation seismic behavior CFD model of viscous damper a simplified model
张凤久,姜伟,孙福街,周守为
《中国工程科学》 2011年 第13卷 第5期 页码 28-33
在深入分析海上稠油聚合物驱提高采收率的难点与挑战的基础上,通过近10年的攻关和矿场试验,研制出适合海上稠油油藏条件的驱替液技术、平台聚合物配注技术、海上稠油含聚采出液处理技术及早期注聚效果评价等一系列技术,初步形成了海上油田聚合物驱油技术体系,并在渤海绥中36-1、旅大10-1及锦州9-3等3个油田进行了不同规模的现场试验,取得了明显的增油降水效果。证明了聚合物驱提高采收率技术在海上稠油油田应用的技术可行性和经济有效性,为海上油田高效开发探索出了一条崭新的道路,具有广阔的应用前景。
Bin HU, Di WU, L.W. WANG, R.Z. WANG
《能源前沿(英文)》 2017年 第11卷 第4期 页码 493-502 doi: 10.1007/s11708-017-0510-6
关键词: multi-stage compression high temperature heat pump heat recovery exergy destruction R1234ze(Z) working fluid
Computational fluid dynamics applied to high temperature hydrogen separation membranes
Guozhao JI, Guoxiong WANG, Kamel HOOMAN, Suresh BHATIA, Jo?o C. DINIZ da COSTA
《化学科学与工程前沿(英文)》 2012年 第6卷 第1期 页码 3-12 doi: 10.1007/s11705-011-1161-5
关键词: membrane gas separation computational fluid dynamics concentration polarization hydrogen
Seismic performance of steel MRF building with nonlinear viscous dampers
Baiping DONG,James M. RICLES,Richard SAUSE
《结构与土木工程前沿(英文)》 2016年 第10卷 第3期 页码 254-271 doi: 10.1007/s11709-016-0348-8
关键词: seismic response steel MRF nonlinear viscous damper design basis earthquake real-time hybrid simulation
Chunji YAN, Maozhao XIE,
《能源前沿(英文)》 2010年 第4卷 第2期 页码 198-204 doi: 10.1007/s11708-009-0054-5
关键词: liquid jet dominant wave number compressibility instability
张劲军
《中国工程科学》 2002年 第4卷 第6期 页码 71-76
我国所产原油80%以上为凝点较高的含蜡原油和粘稠的重质原油,其节能、安全输送一直是我国油气储运界面临的主要技术难题。简要介绍了这两类原油的流动特性及机理,概括了原油降凝减阻输送技术研究和应用的现状,分析了其发展趋势,提出了进一步研究需重点解决的问题。预计化学降凝剂改性仍将是含蜡原油节能安全输送技术的发展方向,目前需重点攻克大庆原油改性的难关;稠油乳化降粘减阻技术将得到更多的应用,在我国目前应重点针对海上油田的油水混输管道开展研究。现有技术的提升、新技术的涌现,有赖于基础研究的突破、技术路线的大胆创新和相关。
Min PAN, Andrew PLUMMER
《机械工程前沿(英文)》 2018年 第13卷 第2期 页码 225-231 doi: 10.1007/s11465-018-0509-7
This paper reviews recent developments in digital switched hydraulics particularly the switched inertance hydraulic systems (SIHSs). The performance of SIHSs is presented in brief with a discussion of several possible configurations and control strategies. The soft switching technology and high-speed switching valve design techniques are discussed. Challenges and recommendations are given based on the current research achievements.
关键词: digital hydraulics switched inertance hydraulic systems energy efficiency high-speed switching valve fluid-borne noise
Design and analysis of a new high frequency double-servo direct drive rotary valve
Muzhi ZHU,Shengdun ZHAO,Jingxiang LI
《机械工程前沿(英文)》 2016年 第11卷 第4期 页码 344-350 doi: 10.1007/s11465-016-0406-x
Researchers have investigated direct drive valve for many years to solve problems, such as fluid force imbalance and switching frequency. The structure of the rotary valve has received considerable research interest because of its favorable dynamic properties and simple structure. This paper studied the high frequency double-servo direct drive rotary valve (DDRV), and proposed a novel structure and drive method satisfying high reversing frequency and adequate quantity of flow. Servo motors are integrated into the valve by the innovative structure, which is designed to equilibrate the unbalanced radial fluid force with the symmetric distributed oil ports. Aside from the fast reversing function of the valve, the DDRV presented high performance in linearity of the flow quantity and valve opening as a result of the fan-shaped flow ports. In addition, a computational fluid dynamics (CFD) method based on Fluent was conducted to verify the flux regulation effect of the height change of the adjustable boss.
关键词: direct drive rotary valve computational fluid dynamics (CFD) flow regulation
Dynamics simulation of bottom high-sediment sea water movement under waves
Xueyi YOU , Wei LIU , Houpeng XIAO ,
《结构与土木工程前沿(英文)》 2009年 第3卷 第3期 页码 312-315 doi: 10.1007/s11709-009-0037-y
关键词: volume of fluid (VOF) method high sediment sea water numerical simulation interface trace Navier-Stokes (N-S) theory
Review of the LNG intermediate fluid vaporizer and its heat transfer characteristics
《能源前沿(英文)》 2022年 第16卷 第3期 页码 429-444 doi: 10.1007/s11708-021-0747-y
关键词: intermediate fluid vaporizer design of structure and intermediate fluid condensation heat transfer
Review of fluid and control technology of hydraulic wind turbines
Maolin CAI, Yixuan WANG, Zongxia JIAO, Yan SHI
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 312-320 doi: 10.1007/s11465-017-0433-2
This study examines the development of the fluid and control technology of hydraulic wind turbines. The current state of hydraulic wind turbines as a new technology is described, and its basic fluid model and typical control method are expounded by comparing various study results. Finally, the advantages of hydraulic wind turbines are enumerated. Hydraulic wind turbines are expected to become the main development direction of wind turbines.
关键词: wind turbine hydraulic system fluid model control technology
标题 作者 时间 类型 操作
Wind-induced vibration control of Hefei TV tower with fluid viscous damper
Zhiqiang ZHANG , Aiqun LI , Jianping HE , Jianlei WANG ,
期刊论文
Combined static mixers for high viscous fluids mixing
Zhenhao XI, Weizhen SUN, Ling ZHAO, Zhaoyan LIU
期刊论文
Evaluation of a developed bypass viscous damper performance
Mahrad FAHIMINIA, Aydin SHISHEGARAN
期刊论文
Exergy analysis of R1234ze(Z) as high temperature heat pump working fluid with multi-stage compression
Bin HU, Di WU, L.W. WANG, R.Z. WANG
期刊论文
Computational fluid dynamics applied to high temperature hydrogen separation membranes
Guozhao JI, Guoxiong WANG, Kamel HOOMAN, Suresh BHATIA, Jo?o C. DINIZ da COSTA
期刊论文
Seismic performance of steel MRF building with nonlinear viscous dampers
Baiping DONG,James M. RICLES,Richard SAUSE
期刊论文
Stability of an annular viscous liquid jet in compressible gases with different properties inside and
Chunji YAN, Maozhao XIE,
期刊论文
Design and analysis of a new high frequency double-servo direct drive rotary valve
Muzhi ZHU,Shengdun ZHAO,Jingxiang LI
期刊论文
Dynamics simulation of bottom high-sediment sea water movement under waves
Xueyi YOU , Wei LIU , Houpeng XIAO ,
期刊论文