recirculation flow中文什么意思

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finally, three representative control strategies, such as the control of external carbon flow rate, the supervision control of the do process and the control of internal recirculation flow rate, are used in the simulator under different weather conditions, in order to analysis the practicability and feasibility of the simulator
论文最后主要通过输入不同气候条件的输入组分数据，采用外加碳源控制、溶解氧浓度监控控制和内回流流速控制三种典型的控制策略，分析本研究开发的仿真软件在活性污泥过程的应用。
flow details of measurement indicate that the coupling of periodic separated flow ( such as low frequency swinging of separation line ) with nozzle flow may cause aft-end internal flow unsteady . recirculation flow gains more energy from the main flow, at the same time the turbulence intensity increases
通过对测量结果的分析，我们认为分离流动的周期性(如分离线的低频摆动)与喷管流动相耦合，会造成燃烧室尾部流动的非稳态效应增强，增加了回流区从主流中获得的能量，也加剧了流场的湍流脉动。

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