Originally the preventer was linked to the Deepwater Horizon by a mile long vertical pipe called a riser, through which oil would flow.
最初，防喷器与深水地平线平台由一根一英里长的垂直管相连，这根管子叫做立管，石油既由此通过。
The present paper discuses, with the method of matched asymptotic expansions, the stress boundary layer of the slender riser in a steady flow.
本文用匹配方法讨论定常流中细长立管所产生的应力边界层现象。
Mathematical models for Fluid Catalytic Cracking (FCC) riser reactors were built generally on the basis of assumption of "plug flow" pattern within risers.
催化裂化提升管反应器数学模型基本上都是基于平推流反应器的假设建立起来的。
It is valuable for CFB desulfurization reactor design optimization to study the gas-solid flow field characteristic in CFB riser.
研究流化床提升管内气固流场分布情况对设计和优化循环流化床脱硫器有重要意义。
It is valuable for CFB desulfurizer design optimization to study the gas-solid flow field characteristic in CFB riser.
研究流化床提升管内气固流场分布情况对设计和优化循环流化床脱硫器有着重要价值。
The water flow velocity in the suction pipe, which is crucial for evaluating the performance on pumping fish, can be measured by the pumped water flow rate of the riser in an air lift pump system.
气力提升泵的水输送量反映了提升管进口的流速情况，而进口流速是衡量吸鱼效果的重要因素。
Under different pressures the flashing in riser of natural circulation system and its effect on flow stability were studied by the method of visual observation in synchronism with data recording.
采用可视化观察与数据同步记录分析相结合的方法，研究了不同压力条件下自然循环系统上升段中的闪蒸现象及其对自然循环稳定性的作用。
Based on the flow moment equation, developed the lateral motion equation of a Marine riser by considering the coupling of the fluid and the pipe.
从流体的动量方程出发，考虑流体和管道的耦合，推导出输运流体海洋立管的偏微分运动方程。
Compared with perforated pipe distributor, perforated weir-riser distributor has smaller wall flow, bigger operation elasticity and simpler structure, it is easy to install.
该分布器与原来的多孔直管式分布器比较，具有壁流量小，操作弹性大的优点，而且此分布器结构简单，安装方便。
Induced by the high-speed feed jet flow, the solid particles above the feed nozzle tended to flow down, and a reverse flow zone was formed along the riser wall.
受喷嘴区高速射流的影响，喷嘴上方固体颗粒呈向下流动趋势，形成一个诱导回流区域。
The results show that the particle size has a core-annular flow pattern in radial position and solid volume fraction is much denser at the bottom of the riser.
结果表明：颗粒在管内呈环—核流动结构，固含率在轴向上呈“上稀下浓”的分布特征。
The flux in the riser reactor is close to plug flow, which greatly demotes the back mixing.
并且使提升管反应器的流型更加接近活塞流，进一步减少返混。
In addition, flow pattern of catalyst in gasoline riser has been studied and the result shows that gas solid contact in the riser was in the form of dense phase force transfer.
通过对汽油提升管内催化剂流动形式的分析，提升管内气固接触形式为密相气力输送。
The technology is equipped with a catalyst mixer at the bottom of the riser, which can produce an ideal circular flow of catalyst before the catalyst contacts with the feed oil.
该技术在提升管底部设置催化剂混合器，使催化剂在与原料油接触之前形成理想的环状流。
Calculation results can provide some references to safe and effective well control and investigation of gas-liquid two-phase flow in vertical riser.
计算结果为安全有效地井控及垂直上升管内气液两相流的研究提供一定的参考依据。
The test results show that by controlling the T-junction and riser tube's resistance coefficients, the unbalanced riser flow distribution has been achieved.
试验结果表明，控制三通及各上升管的局部阻力系数，可以实现上升管流量不均匀分配。
The test results show that by controlling the T-junction and riser tube's resistance coefficients, the unbalanced riser flow distribution has been achieved.
试验结果表明，控制三通及各上升管的局部阻力系数，可以实现上升管流量不均匀分配。
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