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Modeling and simulation of dynamic performance of horizontal steam-launch systemJIN Jia-shan(金家善), YAN Zhi-teng(严志腾) , HU Ji-min(胡继敏) (College of Naval Architecture and Power Engineering, Naval University of Engineering, Wuhan 430033, China)Abstract:Based on theory of variable-mass system thermodynamics, the dynamic mathematic models of each component of the horizontal steam-launch system were......
J. Cent. South Univ. (2019) 26: 2528-2542 DOI: https://doi.org/10.1007/s11771-019-4192-6 Flow pattern and pressure drop of gas-liquid two-phase swirl flow in a horizontal pipe RAO Yong-chao(饶永超)1... pattern of the gas-liquid two-phase swirl flow in the horizontal pipe was divided, according to a high-definition camera and the overall characteristics of the gas-liquid interface. The flow pattern......
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with a withdrawal rate of 6 mm/min. Conventional helical starters were utilized to initiate single crystal growth. The full heat treatment schedules for the two alloys were (1 335 °C, 16 h)+(1 345 °C, 16 h, air... matrix is larger. The degree of the tetragonal distortion of γ lattice was evaluated by aγ∥/aγ⊥, where aγ∥ and aγ⊥ are the lattice constants of γ phase in the horizontal and vertical matrix channels......
Critical parameters of horizontal well influenced by semi-permeable barrier in bottom water reservoirYUE Ping(乐平), DU Zhi-min(杜志敏), CHEN Xiao-fan(陈小凡), ZHU Su-yang(朱苏阳), JIA Hu(贾虎) (State Key... on the production performance of horizontal wells developed in a bottom water drive reservoir. In most cases, reservoir barriers are semi-permeable. Based on previous research on impermeable reservoir barrier......
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cases of millisecond blasting in single barrier pillar and single deck blasting in interval barrier pillars. The results show that the dynamic response results are not obviously affected by horizontal...; 文献标志码:A 文章编号:1672-7207(2017)06-1577-08 A similar nonlinear vibration model for dynamic response of horizontal goaf group JIANG Lichun1, 2......
Numerical simulation and disaster prevention for catastrophic fire airflow of main air-intake belt roadway in coal mine-A case studyZHOU Gang(周刚)1, 2, 3, CHENG Wei-min(程卫民)1, 2, ZHANG Rui(张睿)4, SHEN... Technology & Engineering GroupCorporation, Chongqing 400037, China)Abstract:Coal mine belt fire develops very rapidly and is difficult to control. If not suppressed quickly, a belt fire could easily lead......
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J. Cent. South Univ. (2012) 19: 721-726 DOI: 10.1007/s11771-012-1063-9 Near ground air temperature calculation model based on heat transfer of vertical turbulent and horizontal air flow ZHANG Lei(张磊... were developed for each air layer, in which the heat exchange due to vertical turbulence and horizontal air flow was taken into account. Then, the vertical temperature distribution of the surface......