1) falling liquid film flow
降液膜流动
2) falling film
降膜流动
1.
In order to study the hydrodynamics in the falling film, a laser Doppler anemometer (LDA) was used to measure the local liquid velocity and its instantaneous fluctuations in the falling film of a countercurrent gas-liquid flow.
为了研究降膜流动的动力学性质及其对气液传质过程的影响,在气液逆流的不同气液流动条件下采用激光多普勒(laser Doppleranemometer,简称LDA)测量了降膜流动的液相速度分布和瞬时速度波动。
2.
The results show that the rotating gas has interference to the falling film prominently, especially on gas inlet section.
以进口气速为试验因素,结果表明:表面气体剪切力对降膜流动形态产生显著影响,使水膜在筒体不同侧面及高度分布不均,进口段尤为明显,降膜流动急剧偏折。
3) Liquid film flow
液膜流动
1.
In order to study the influence of surface-free-energy difference of solid surface and condensate on the filmwise condensation heat transfer performance, a correlation of the condensation heat transfer coefficient with contact angle has been derived with respect to liquid film flow and heat transfer at vapor-liquid interface.
为了考察固液表面自由能差对膜状冷凝传热系数的影响，本文从液膜流动的角度出发，推导出了接触角与冷凝传热系数的关联式。
4) falling liquid film
下降液膜
1.
A theoretical analysis was conducted of the heat exchange characteristics of a falling liquid film under the condition of evaporative heat dissipation and of the presence on the free surface of a reverse shearing force.
从理论上对下降液膜在自由表面上存在反向剪切力和蒸发散热情况下的换热特性进行了分析 ,得到了膜厚 ,换热系数的无量纲关系式 ,讨论了剪切力、液膜雷诺数、壁面热流、蒸发率对流动和传热的影响。
2.
A model on pressure drop in oil gas water three phase slug flow has been set up, which takes account of grown proceeding of falling liquid film around Taylor bubbles in slug flow.
该模型考虑弹状流中Ｔａｙｌｏｒ气泡周围下降液膜的变化历程。
5) Falling film
下降液膜
1.
Falling film is widely occurred in the safety system for the Advanced PWR Nuclear Power Plant(e.
下降液膜广泛运用于先进压水堆核电站的安全系统(如AP 1000)和核能海水淡化系统。
6) falling liquid film
降液膜
1.
The objective of this study is to develop a theoretical method of investigating heat-transfer properties of falling liquid film on the surface of a horizontal spirally fluted tube.
本文利用流体力学的基本原理,同时考虑薄液膜的表面张力和重力的影响,建立了小流量液体在水平螺旋槽管外壁面形成降液膜的流动和强化传热的数学模型,得到了流动速度和液膜厚度的解析解,进而分析了在蒸发、冷凝时槽道表面几何形状对液膜厚度分布的影响以及多头螺旋槽管发生流体掺混时的液膜厚度分布。
补充资料：降液管清液层高度
分子式：
CAS号：
性质：又称降液管清液层高度。板式塔降液管内的液柱液面到下层塔板的垂直距离。如图中的Hd（图暂缺）。为保持板式塔正常操作，避免发生液泛，降液管液柱高度不能超过一定限度。一般应满足Hd≤(0.4～0.6)(HT+hw)，式中HT为塔板间距，hw为堰高，系数一般取0.5，易起泡物系取0.4，不易起泡物系取0.6。
CAS号：
性质：又称降液管清液层高度。板式塔降液管内的液柱液面到下层塔板的垂直距离。如图中的Hd（图暂缺）。为保持板式塔正常操作，避免发生液泛，降液管液柱高度不能超过一定限度。一般应满足Hd≤(0.4～0.6)(HT+hw)，式中HT为塔板间距，hw为堰高，系数一般取0.5，易起泡物系取0.4，不易起泡物系取0.6。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条