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An approximate analytic model for flow through capillary tubes

机译:毛细管流动的近似解析模型

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摘要

An analytic model for working fluids flowing through capillary tubes has been estab- lished with the approximate integral method. All the possible flow regimes in the capillary tubes, including subcooled, two-phase and superheated regimes, are covered in the model, and differ- ent analytic solutions are given respectively for each flow regime. As examples, the mass flow rates of refrigerants R12, R134a and R600a through capillary tubes are predicted by the model, and compared with those evaluated by a general distributed-parameter model.
机译:用近似积分法建立了流经毛细管的工作流体的解析模型。模型中涵盖了毛细管中所有可能的流动方式,包括过冷,两相和过热方式,并分别为每种流动方式给出了不同的解析解。例如,通过模型预测制冷剂R12,R134a和R600a通过毛细管的质量流率,并将其与通过通用分布参数模型评估的质量流率进行比较。

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