对垂直同心环形管内上升气液团状流向环状流的转换进行了研究。
Churn flow and annular flow are common flow patterns encountered in gas-liquid systems through conduits.
该模型认为环状流区域同时存在强制对流与核态沸腾两种换热方式。
The model assumes that forced convection and nucleate boiling coexist in the annular flow regime.
在环状流下，A流路的贯通作用使折流板前后对应区域的含气率基本一致；
In annular flow the penetrating effect of stream A makes the void fraction same besides a baffle.
对垂直同心环形管内上升气液环状流的截面含气率及压降预测进行了研究。
In this paper, the prediction of void fraction and pressure drop for upward gas-liquid annular flow in a vertical annulus is studied.
对垂直同心环形管内上升气液环状流的截面含气率及压降预测进行了研究 。
Research on the circumferential distribution of wall temperature for horizontal evaporating tubes under annular flow;
实验发现环状流区高气速时的压差波动分维数大于1.5 ，在其它流型内都小于1.5。
The fractal dimension of the fluctuations are lower than 1.5 in all flow regimes besides the annular flow with great gas superficial velocity.
随着流量和干度的变化，流型可划分为泡状流、塞状流、分层波状流、间歇流以及环状流。
With the variation of flow rates and qualities, the flow patterns can be divided into bubbly flow, plug flow, stratified-wavy flow, intermittent flow and annular flow.
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。
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.
本文提出了微圆管内环状流凝结换热的分析模型，考虑了重力、汽液界面剪切力、表面张力以及界面凝结热阻的作用。
Considering gravity, interfacial shear stress, surface tension and interfacial thermal resistance, the analysis model for annular flow condensation heat transfer in microtube was presented.
对于层状流、核心流、环状流、均相流等流型，流型辨识的准确率高于95%，辨识一个流型所用的时间小于0.3秒。
The accuracy of flow pattern identification of stratified flow, annular flow, core flow and homogeneous flow is more than 95% and the speed of flow pattern identification is less than 0.3s.
根据流体力学的原理，任何系统都趋向于处在能量最小的稳定状态，所以在环状流的稳定流动状态下具有的能量应该最小。
According to the principle of the fluid mechanics, any system all tend towards to minimum steady state of energy, so the energy in steady flow of annular flow will be minimum.
模型是建立在压力能量消耗率最小的原理上的，其基本原理是：在气-液两相流的流型中，环状流具有相当稳定的流动状态。
Its basic principle is that there is a quite steady flow state of annular flow in the flow pattern of gas-liquid two-phase flow.
在相同供油量情况下，新供油方式形成环状流需要的入口气相速度低，且气速增大时一般不会形成夹带液滴，能够实现较好的环状流流型。
Results show that with the same oil amount, the new oil supply style needs a lower gas velocity in the inlet to shape the annular flow, and the oil drops will not appear in air flow.
在调研了大量关于宾汉流体偏心环状管流的文献之后，发现大都是近似计算而不具有普适性。
Computation of eccentric annular flowing on Bingham-fluid in pipe is approximate in many literatures and is not of universality.
通过理论分析，研究了竖直传热管内降膜-高速空气环状两相流的蒸发换热特性。
A theoretical analysis was carried out for evaporative heat transfer of annular two phase flow of liquid film and high velocity air in vertically heated tubes.
通过理论分析，研究了竖直细小管内水—空气环状两相流的蒸发换热特性。
Through a theoretical analysis a study has been carried out concerning the evaporation heat exchange characteristics of water-air annular two-phase flows in a vertical slender tube.
对圆管内环状两相流的空泡份额进行了分析。
The void fraction of annular two-phase flow inside cylinder is analyzed.
我们还得到了此持续原子流存在的临界条件，并且提出了一个在环状原子波导中实现此持续原子流的实验。
A critical condition to generate the persistent atom current is demonstrated and we moreover propose a practical experiment to realize the persistent atom current in a toroidal atom waveguide.
本文采用双组分环状二相流模型对吸收-扩散式制冷系统蒸发器的传热进行了分析计算。
In this article the analytical calculation has been made for the evaporator heat transfer in absorption-diffusion refrigeration system with the annular two-phase two-component heat transfer model.
本文采用双组分环状二相流模型对吸收-扩散式制冷系统蒸发器的传热进行了分析计算。
In this article the analytical calculation has been made for the evaporator heat transfer in absorption-diffusion refrigeration system with the annular two-phase two-component heat transfer model.
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