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3D FLOW INSIDE BUBBLE-TYPE VORTEX BREAKDOWN: AN EXPERIMENTAL INVESTIGATION VIA LDV

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Journal of Hydrodynamics 2003年第3期15卷 44-48页

作者： LiuYing-zheng chenhan-ping KoyamaHideS SchoolofPowerandEnergyEngineering ShanghaiJiaotongUniversityShanzhai200030China DepartmentofMechanicalEngineering TokyoDenkiUniversityTokyo101-8457Japan

Bubble-type vortex breakdown of the swirling flow inside a closed cylindricalcontainer with a rotating upper endwall was experimentally investigated via LDV. 3D measurement ofthe steady bubble at H/R =1.5 was firstly carried out with very fine grid arrangement. Flow detailsinside the bubble and its Re -dependent structure were made clear. Abrupt waves of the azimuthalvelocity component were always found to be between the bottom stationary endwall and the upstreamstagnation point, which might be the reason of bubble formation. Variation of bubble structure andbubble center with the increasing Re gives the explanation for the disappearance of the breakdownregion.

关键词： bubble-type vortex breakdown LDV swirling flow

EXPERIMENTAL INVESTIGATION ON VORTEX BREAKDOWN IN SPIN-UP AND SPIN-DOWN PROCESSES VIA PIV

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Journal of Hydrodynamics 2003年第2期15卷 58-63页

作者： LiuYing-zheng KoyamaHideS. chenhan-ping DepartmentofPowerMachineryEngineering ShanghaiJiaotongUniversityShanghai200030China DepartmentofMechanicalEngineering TokyoDenkiUniversityTokyo101-8457Japan

The whole field measurements of swirling flow in spin-up and spin-downprocesses via PIV are presented in the paper. Investigation of the flow patterns at H/R = 1. 50 wasexperimentally carried out for the first time in both processes. By means of symmetry analysis, itis found that the overall flow structure in the spin-up process still keep axi-symmetric to a greatextent, but deteriorated very fast in the spin-down process. The time to settle to the state of restin the spin-down process is found to be greatly shorter than the time to achieve the steady statein the spin-up process. Temporarily oscillatory vortex breakdown was discovered during the spin-upprocess, although no breakdown in the steady state at the same Reynolds number is found in preciousresearches.

关键词： vortex breakdown PIV swirling flow

从《镜中释灵实集》释录看东亚写本俗字研究——兼论东亚写本学研究的意义

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天津师范大学学报（社会科学版） 2008年第5期28卷 59-64页

作者：王晓平天津师范大学文学院天津300387

中国及其周边各国保存的古代以汉字为中心的写本,是汉字文化的瑰宝,也是重新解读东亚文化交流史的钥匙。它们都是建立"东亚写本学"的基础材料,其中敦煌写本占有重要而特殊的位置。日本所藏《圣武天皇宸翰杂集》中的《镜中释灵实集》,是... 详细信息

中国及其周边各国保存的古代以汉字为中心的写本,是汉字文化的瑰宝,也是重新解读东亚文化交流史的钥匙。它们都是建立"东亚写本学"的基础材料,其中敦煌写本占有重要而特殊的位置。日本所藏《圣武天皇宸翰杂集》中的《镜中释灵实集》,是我国早已散佚的唐代佛教文学的珍贵文献。日本学者对它所作的注解,著此项研究之先鞭,值得我国学者重视。而其解读中的不备和不确,恰可借助敦煌俗字研究的成果加以补正。

关键词：敦煌俗字东亚写本学唐代文学《镜中释灵实集》

Clinicopathologic risk factors and prognostic evaluation in hepatocellular carcinoma recurrence after surgery

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World Journal of Gastroenterology 1997年第3期3卷 71-71页

作者： DAI Yi Min, CHEN Han, WANG Neng Jin, NI Can Rong, CONG Wen Ming and ZHANG Song ping Department of Pathology, Second Military Medical University, Shanghai 200433, China

ＣｌｉｎｉｃｏｐａｔｈｏｌｏｇｉｃｒｉｓｋｆａｃｔｏｒｓａｎｄｐｒｏｇｎｏｓｔｉｃｅｖａｌｕａｔｉｏｎｉｎｈｅｐａｔｏｃｅｌｕｌａｒｃａｒｃｉｎｏｍａｒｅｃｕｒｅｎｃｅａｆｔｅｒｓｕｒｇｅｒｙＤＡＩＹｉＭｉｎ，Ｃ... 详细信息

ＣｌｉｎｉｃｏｐａｔｈｏｌｏｇｉｃｒｉｓｋｆａｃｔｏｒｓａｎｄｐｒｏｇｎｏｓｔｉｃｅｖａｌｕａｔｉｏｎｉｎｈｅｐａｔｏｃｅｌｕｌａｒｃａｒｃｉｎｏｍａｒｅｃｕｒｅｎｃｅａｆｔｅｒｓｕｒｇｅｒｙＤＡＩＹｉＭｉｎ，ＣＨＥＮＨａｎ，ＷＡＮＧＮｅｎｇＪ...

关键词： liver neoplasms/surgery carcinoma,hepatocellular/surgery neoplasm recurrence,local prognosis risk factors