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浏览/检索结果: 共9条,第1-9条 帮助

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Numerical well test model for caved carbonate reservoirs and its application in Tarim Basin, China 期刊论文  OAI收割
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2018, 卷号: 161, 页码: 611-624
作者:  
Wan YZ;  Liu YW(刘曰武);  Chen FF;  Wu NY;  Hu GW
  |  收藏  |  浏览/下载:26/0  |  提交时间:2018/03/05
Study on numerical well test for discrete-fracture cavity model 会议论文  OAI收割
Tianjin, PEOPLES R CHINA, JUN 10-11, 2017
作者:  
Chen FF;  Hou SJ;  Ding ZW;  Liu YW(刘曰武);  Xue JL
收藏  |  浏览/下载:26/0  |  提交时间:2018/06/06
A numerical approach for pressure transient analysis of a vertical well with complex fractures 期刊论文  OAI收割
ACTA MECHANICA SINICA, 2016, 卷号: 32, 期号: 4, 页码: 640-648
作者:  
Wan YZ;  Liu YW(刘曰武);  Liu WC(刘文超);  Han GF;  Niu CC
收藏  |  浏览/下载:25/0  |  提交时间:2016/12/08
Numerical investigation of dual-porosity model with transient transfer function based on discrete-fracture model 期刊论文  OAI收割
Applied Mathematics and Mechanics, 2016, 卷号: 37, 期号: 5, 页码: 611-626
作者:  
Wan YZ;  Liu YW(刘曰武);  Ouyang WP;  Han GF;  Liu WC
收藏  |  浏览/下载:35/0  |  提交时间:2016/09/05
Fracture Network Numerical Well Test Model Based on the Discrete-fracture Model 期刊论文  OAI收割
Procedia Engineering, 2015, 卷号: 126, 页码: 512-516
作者:  
Wan YZ;  Liu YW(刘曰武);  Ouyang WP;  Niu CC;  Han GF(韩国锋)
收藏  |  浏览/下载:24/0  |  提交时间:2016/08/25
The layout parameters of well groups and effect on land subsidence for salt mine in Zhangshu tourist area 会议论文  OAI收割
Beijing, PEOPLES R CHINA, OCT 26-29, 2011
作者:  
Yao Yuanfeng;  Yang Chunhe;  Li Yinping;  Ji Wendong
  |  收藏  |  浏览/下载:22/0  |  提交时间:2018/06/05
Analysis of inertia dyadic uncertainty for small agile satellite with control moment gyros (EI CONFERENCE) 会议论文  OAI收割
2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010, August 4, 2010 - August 7, 2010, Xi'an, China
作者:  
Zhang L.;  Zhang L.;  Sun Z.
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/25
With the increasing demands for the agility of the next earth imaging satellite  control moment gyro (CMG) is considered to be the most suitable actuator because of its torque amplification capability. However  a CMG system may introduce uncertainty of inertia dyadic to a satellite's attitude control system. The uncertainty is negligible for large space vehicles  but it has not been tested whether it can be ignored for small agile satellites. How to model the CMG system inertia dyadic varying with gimbal angles  and what influence it will put on the performance of attitude control system haven't been test accurately as well. All of them are dealt with mathematically and accurately in this paper. This paper firstly gives mathematic descriptions of the inertia dyadic of the 4-CMG pyramid configuration system  varying with gimbal angles  and then designs a variable structure control law for small agile satellite using CMGs. Finally  numerical simulation suggests that the inertia dyadic variation of a 4-CMG pyramid configuration system is approximately centesimal of the total inertia dyadic of the satellite  and that the designed variable structure control law is of good robust performance for an example of large-angle attitude maneuver  despite of the variation of the inertia dyadic. 2010 IEEE.  
Gas Flow in a Stratified Porous Medium with Crossflow 期刊论文  OAI收割
JOURNAL OF THERMAL SCIENCE, 2002, 卷号: 11, 期号: 1, 页码: 35,40
Sun Hedongl; Gao Chengtai2; Qian Huanqun-Zhou Fangdel
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/12
Gas Flow in a Stratified Porous Medium with Crossflow 期刊论文  OAI收割
JOURNAL OF THERMAL SCIENCE, 2002, 卷号: 11, 期号: 1, 页码: 35,40
作者:  
Sun Hedongl;  Gao Chengtai2;  Qian Huanqun-Zhou Fangdel
  |  收藏  |  浏览/下载:17/0  |  提交时间:2013/03/12