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| 1 | Emplacement age of the post-orogenic A-type granites in Northwestern Lesser Xing'an Ranges, and its relationship to the eastward extension of Suo-lushan-Hegenshan-Zhalaite collisional suture zone显示文摘A great amount of alkali-feldspar and alkaline granites have been found around Nenjiang, Northwest Lesser Xing’an Ranges, but their forming ages have been a controversial subject due to the lack of reliable geological and isotopic geochronological evidence. The zircon U-Pb isotopic dating results conducted in this note indicate that these granites emplaced at 260-290 Ma, coeval with the late stage of Late Paleozoic. Studies of mineralogy, petrology andgeochemistry show that they are post-orogenic A-type granites, and consist of the northeastern extension of huge belt of Late Paleozoic A-type granite along North Xinjiang-Southeast Mongolia-Central Inner Mongolia. Therefore, we can determine that the Suolunshan-Hegenshan-Zhalaite collisional suture zone extends northeastward to Heihe with the collision age of Carboniferous. | Deyou Sun Fuyuan Wu Huimin Li Qiang Lin | 2001 | Chinese Science Bulletin2001，46，5： | 36 |
| 2 | Zircon U-Pb ages of the basement rocks beneath the Songliao Basin,NE China显示文摘The basement of the Songliao Basin is mainly composed of slightly-metamorphosed or unmetamorphosed Paleozoic strata, granites and gneiss. Petrographical studies indicate that the gneiss was originally the granitic intrusions which were deformed in the later stage. One undeformed granitic rock sample gives a U-Pb age of (305+++++++++++2) Ma, and the mylonitic granite yields a U-Pb age of (165++++++++3) Ma. Both of the two samples contain no inherited zircon, which suggests that there is no large-scale Precambrian crystalline basement beneath the Songliao Basin. | WU Fuyuan SUN Deyou LI Huimin WANG Xiaolin | 2000 | Chinese Science Bulletin2000，45，16： | 21 |
| 3 | Application of entropy production theory to hydro-turbine hydraulic analysis显示文摘The understanding of hydraulic behavior in the hydro turbine requires the detailed study of fluid flow in the turbine. Previous methods of analyzing the numerical simulation results on the fluid machinery are short of intuitiveness on energy dissipation.In this paper, the energy dissipation was analyzed based on the entropy production theory. 3-D steady flow simulations and entropy production calculations of the reduced hydro turbine were carried out. The results indicated that the entropy production theory was suitable for evaluating the performance of the hydro turbine. The energy dissipation in the guide vanes area weighted nearly 25% of the whole flow passage, and mainly happened at the head and tail areas of the vanes. However, more than half the energy dissipation occurred in the runner, mostly at the leading edge of runner blade and the trailing edge of run-ner blade. Meanwhile, close to 20% of the energy dissipation occurred in the elbow. And it can be concluded that the method of entropy production analysis has the advantages of determining the quantity of energy dissipation and where the dissipation happens. | GONG RuZhi WANG HongJie CHEN LiXia LI DeYou ZHANG HaoChun WEI XianZhu | 2013 | Science China(Technological Sciences)2013，56，7： | 15 |
| 4 | Modeling Research on a Solar Tower Thermal Collection-natural Gas Turbine Power System显示文摘塔式太阳能-燃气轮机发电系统发电成本和研发风险都低于常规太阳能热发电系统,同时能克服太阳能随机性、波动性的缺点,可以推动太阳能热发电的商业化进程。为了研究塔式太阳能与燃气轮机发电系统的能量传递与热功转化规律,以及相关结构参数与运行参数对发电系统性能的影响,该文分别建立该系统中压气机、泡沫陶瓷吸热器、燃烧室、透平4部分的传热和热功转化模型,采用Matlab软件平台编程,进行了系统运行仿真模拟,并分析了压比、孔隙率、厚度、吸热器面积、进气温度等对系统性能的影响。研究结果可为系统的设计与运行提供参考。 | XU Chang LI Min YUAN Yuan GUO Su LIU Deyou ZHENG Yuan | 2013 | 中国电机工程学报2013，33，32： | 6 |
| 5 | Dynamic analysis on pressure fluctuation in vaneless region of a pump turbine显示文摘As the pump turbine tends to be operated with high head and high rotational speed, the study of stability problems becomes more important. The pump turbine usually works at operating conditions where the guide vanes experience strong vibrations. However, most traditional studies were carried out based on constant GVO(guide vane opening) simulations. In this work, dynamic analysis on pressure fluctuation in the vaneless region of a pump turbine model was conducted using a dynamic mesh method in turbine mode. 3D unsteady simulations were conducted where GVO was closed and opened by 1° from the initial 18°. Detailed time domain and frequency domain characteristics on pressure fluctuation in the vaneless region under different guide vane rotational states compared with constant GVO simulations were investigated. Results show that, during the guide vanes oscillating process, the low and intermediate frequency components in the vaneless region are significantly different. The amplitudes of pressure fluctuation are higher than those with constant GVO simulations, which agree better with the experimental data. In addition, the pressure fluctuation increases when GVO is opened, and vice versa. It can be concluded that pressure fluctuation in the vaneless region is strongly influenced by the oscillating of the guide vanes. | LI DeYou GONG RuZhi WANG HongJie XIANG GaoMing WEI XianZhu LIU ZhanSheng | 2015 | Science China(Technological Sciences)2015，58，5： | 6 |
| 6 | Dynamic instability of a pump-turbine in load rejection transient process显示文摘Load rejection is one of the most crucial transient processes in pump-turbines. However, only a few achievements on the internal flow mechanism of pump-turbines in load rejection processes have been presented. In this study, firstly, the load rejection process in a pump-turbine was simulated with a three-dimensional unsteady turbulent numerical method using the technology of dynamic mesh and the user-defined functions in the FLUENT software. The rotational speed predicted through numerical simulation agrees well with experimental data. Secondly, based on numerical simulations, a dynamic instability in the load rejection process was found and presented that the pressure and performance characteristics, including hydraulic torque on the runner and the discharge, fluctuate in the overall trend. Meanwhile, all the performance characteristics and the pressure fluctuate sharply near the operating condition points, where hydraulic torque on the runner is equal to zero or reverse flow is maximum at reverse pump conditions. Finally, the time-frequency features and formation mechanism of the dynamic instability were analyzed emphatically. The analysis of the internal flow in the pump-turbine reveals that dynamic instability in the load rejection process are mainly caused by the vortex flow in the tandem cascades regions. Furthermore, the possible methods to improve the dynamic instability in the load rejection process were recommended. | FU XiaoLong LI DeYou WANG HongJie ZHANG GuangHui Li ZhengGui WEI XianZhu | 2018 | Science China(Technological Sciences)2018，61，11： | 5 |
| 7 | Entropy Production Analysis for Hump Characteristics of a Pump Turbine Model显示文摘The hump characteristic is one of the main problems for the stable operation of pump turbines in pump mode.However,traditional methods cannot reflect directly the energy dissipation in the hump region.In this paper,3D simulations are carried out using the SST k-ω turbulence model in pump mode under different guide vane openings.The numerical results agree with the experimental data.The entropy production theory is introduced to determine the flow losses in the whole passage,based on the numerical simulation.The variation of entropy production under different guide vane openings is presented.The results show that entropy production appears to be a wave,with peaks under different guide vane openings,which correspond to wave troughs in the external characteristic curves.Entropy production mainly happens in the runner,guide vanes and stay vanes for a pump turbine in pump mode.Finally,entropy production rate distribution in the runner,guide vanes and stay vanes is analyzed for four points under the 18 mm guide vane opening in the hump region.The analysis indicates that the losses of the runner and guide vanes lead to hump characteristics.In addition,the losses mainly occur in the runner inlet near the band and on the suction surface of the blades.In the guide vanes and stay vanes,the losses come from pressure surface of the guide vanes and the wake effects of the vanes.A new insight-entropy production analysis is carried out in this paper in order to find the causes of hump characteristics in a pump turbine,and it could provide some basic theoretical guidance for the loss analysis of hydraulic machinery. | LI Deyou GONG Ruzhi WANG Hongjie XIANG Gaoming WEI Xianzhu QIN Daqing | 2016 | Chinese Journal of Mechanical Engineering2016，29，4： | 4 |
| 8 | A-type granites in northeastern China: Age and geochemical constraints on their petrogenesis 显示文摘 | WU Fuyuan SUN Deyou LI Huimin | 2002 | Chemical Geology2002，187，： | 1 |
| 9 | A-type granites in northeastern China: Age and geochemical constraints on their petrogenesis显示文摘 | Wu Fuyuan Sun Deyou Li Huimin Jahn Bor-ming Wilde S | 2002 | Chem Geol2002，187，12： | 1 |
| 10 | Age and geochemistry of Early Ordovician A-type granites in the Northeastern Songnen Block,NE China显示文摘Early Ordovician A-type granites in the northeastern(NE) Songnen Block NE China were studied to better understand the geodynamic settings in this region.This research presents new zircon U–Pb ages and wholerock geochemical data for the Early Ordovician granites in the NE Songnen Block. Zircon U–Pb dating indicates that the granite in the Cuibei, Hongxing, and Meixi areas in the NE Songnen Block formed in the Early Ordovician with ages of 471–479 Ma. The granites show geochemical characteristics of high SiO2 and K2 O compositions and low FeOT, MgO, CaO, and P2 O5 compositions. They belong to a high K calc-alkaline series and display a weak peraluminous featurPe with A/CNK values of 0.98–1.14. The rocks have aREE composition of 249.98–423.94 ppm,and are enriched in LREE with(La/Yb)Nvalues of2.87–9.87, and display obvious Eu anomalies(d Eu =0.01–0.29). Trace elements of the studied granites are characterized by enrichment in Rb, Th, U, Pb, Hf, and Sm,and depletion of Ba, Nb, Ta, and Sr. They display geochemical features of high Zr +Y + Nb+Ce values(324–795 ppm) and Ga/Al ratios consistent with A-type granites. Based on particular geochemical features, such as high Rb/Nb(7.98–24.19) and Y/Nb(1.07–3.43), the studied A-type granites can be further classified as an A2-type subgroup. This research indicates that the Early Ordovician A-type granites were formed by the partial melting of ancient crust in an extensional setting. Lower Sr/Y and(Ho/Yb)Nratios indicate that plagioclase and amphibole are residual in the source, and garnet is absent, implying that the magma was generated at low levels of pressure. By contrast, the contemporaneous granites in the SE Xing'an Block suggest a subduction-related tectonic setting, and its adakitic property indicates a thickened continental crust.We suggest that the Paleo-Asian Ocean plate between the Xing'an and Songnen blocks subducted northward during the Early Ordovician. Meanwhile, the NE Songnen Block was exposed to a passive continental margin tectonic setting. | Changzhou Deng Deyou Sun Guangyi Sun Changlu Lv Zhen Qin Xianquan Ping Guanghui Li | 2018 | Acta Geochimica2018，37，6： | 1 |
| 11 | Anatexis,Deformation and Exhumation Mechanism for UHP Metamorphic Rocks:A Case Study in the North Qaidam and South Altyn UHP Terrane,Western China显示文摘Objective In recent years,hydrous silicate melts by dehydrationdriven in situ partial melting constrained from experiments and natural rocks have been increasingly recognized in UHP rocks,indicating partial melting of UHP slab.Partial melting of UHP metamorphic rocks can dramatically affect the rheology of deeply subducted crust and thus play a crucial role in accelerating the exhumation of UHP slabs. | YU Shengyao ZHANG Jianxin LI Sanzhong PENG Yinbiao SUN Deyou | 2017 | Acta Geologica Sinica(English Edition)2017，91，1： | 1 |
| 12 | A-type granites in northeastern China:age and geochemical constraints on their petrogenesis显示文摘 | Wu Fuyuan Sun Deyou Li Huimin | 2002 | Chemical Geology2002，187，： | 1 |
| 13 | A-type granites in northeastern China: Age and geochemical constraints on their petrogenesis 显示文摘 | Wu Fuyuan Sun Deyou Li Huimin Jahn Bor-ming Wilde S | 2002 | Chem Geol2002，187，12： | 1 |
| 14 | Numerical simulation of active control of structural vibration and acoustic radiation of a fluid-loaded laminated plate显示文摘 | LI Sheng ZHAO Deyou | 2004 | Journal of Sound and Vibration2004，272，： | 1 |
| 15 | A-type granites in northeastern China: age and geochemical constraints on their petrogenesis 显示文摘 | Wu Fuyuan Sun Deyou Li Huimin | 2002 | Chenfical Geology2002，187，： | 1 |
| 16 | The Na ture of Basement Beneath the Songliao Basin in NE China: Geochenical and Isotopic Constraints 显示文摘 | Wu Fuyuan Sun Deyou Li Huimin | 2001 | Physics and Chemistry of the Earth: Part A2001，26，910： | 1 |
| 17 | A-Type Granites in Northeastern China: Age and Geochemical Constraints on Their Petrogenesis 显示文摘 | Wu Fuyuan Sun Deyou Li Huimin | 2002 | Chemical GeQlogy2002，187，12： | 1 |
| 18 | A-type granites in northeastern China: Age and geochemical constraints on their petrogenesis 显示文摘 | Wu Fuyuan Sun Deyou Li Huimin | 2002 | Chemical Geology2002，187，1： | 1 |
| 19 | A-type granites in northeastern China: age and geochemical constraints on their petrogenesis 显示文摘 | Wu Fuyuan Sun Deyou Li Huimin | 2002 | Chemical Geology2002，187，12： | 1 |
| 20 | Numerical simulation of active control of structural vibration and acoustic radiation of a fluid-loaded laminated plate显示文摘 | Li Sheng Zhao Deyou | 2004 | JSV2004，272，12： | 1 |
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