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您的检索式：作者名="ZHOU GenSheng"
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| 1 | Numerical and experimental investigations for an air cannon optimization显示文摘Air cannon is a kind of de-clogging device which produces impulse force by instantly releasing the compressed air deposited in a pressure vessel.Air cannons are widely used in the transport pipes of warehouses,docks,furnaces and coal mines.In this paper,the theoretical analysis with isentropic flow hypothesis is firstly conducted on a simplified model to deduce the theoretical maximum of impulse force.And numerical study is carried out to predict the steady and unsteady impulse forces via simulating the whole exhausting process of the air cannon.The results demonstrate that the impulse force can be improved via increasing the piston sleeve inlet length and increasing the nozzle diameter.Laval nozzle can also increase the impulse force of the air without increasing the air mass flow.The optimization of the air cannon is then conducted on the basis of the theoretical and numerical analyses.Experimental measurements indicate that the computations well simulate the working process of the air cannon and the impulse force of the optimized design is 50%higher than the original model.For the cases with working pressure of 0.8 MPa,the optimized design is 60%higher than the original one. | XU Jian CHEN HaiSheng TAN ChunQing CHEN HuanZhuo ZHOU GenSheng | 2011 | Science China(Technological Sciences)2011，54，2： | 3 |
| 2 | Settling behavior of spherical particles in vertical annulus:Experimental study and model development显示文摘Coiled tubing(CT)drilling technology offers significant advantages in terms of cost and efficiency for exploitations of unconventional oil and gas resources.However,the development of CT drilling technol-ogy is restricted by cuttings accumulation in the wellbore due to non-rotation of the drill string and limited circulating capacity.Cuttings cleaning becomes more difficult with the wall resistance of pipe-wellbore annulus on the cutting transport.Accurate description of particle transport process in the pipe-wellbore annulus is,therefore,important for improving the wellbore cleanliness.In this study,high-speed cam-era is used to record and analyze the settling process of particles in the transparent annulus filled with power-law fluids.A total of 540 tests were carried out,involving dimensionless diameters of 0.10-0.95 and particle Reynolds Numbers of 0.01-12.97,revealing the effect of the dimensionless diameter and particle Reynolds number on the annulus wall effect,and the wall factor model with an average relative error of2.75%was established.In addition,a dimensionless parameter,Archimedes number,independent of the settling velocity,was introduced to establish an explicit model of the settling velocity of spherical particles in the vertical annulus,with the average relative error of 7.89%.Finally,a calculation example was provided to show how to use the explicit model of settling velocity in annulus.The results of this study are expected to provide guidance for field engineers to improve the wellbore cleanliness of coiled tubing drilling. | Zhaopeng Zhu Mengmeng Zhou Xianzhi Song Shuo Zhu Gensheng Li Zhengming Xu Xuezhe Yao Buwen Yu | 2022 | Particuology2022，20，9： | 2 |
| 3 | The role of mltogen-aetivated protein kinase phosphatase-1 in oxidative damage-lnduced cell dealth显示文摘 | Junying Zhou Yusen Liu Gensheng Wu | 2006 | Cancer Res2006，66，9： | 1 |
| 4 | SHP-2 Phosphatase Negatively Regulates the TRIF Adaptor Protein-Dependent Type I Interferon and Proinflammatory Cytokine Production显示文摘 | Huazhang An Wei Zhao Jin Hou Yan Zhang Yun Xie Yuejuan Zheng Hongmei Xu Cheng Qian Jun Zhou Yizhi Yu Shuxun Liu Gensheng Feng Xuetao Cao | 2006 | Immunity2006，，6： | 1 |
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