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为了快速分析磁流体管流,采用涡轮喷气发动机模型对磁流体管流进行类比分析,引入变截面管流理论和修改过的多变效率表达式,推导了磁流体发电器和加速器的准一维模型,采用二维数值方法验证了准一维模型的可行性,利用该准一维模型对磁流体管流进行了性能分析,结果表明,多变效率的引入使准一维模型更加完整,当负载系数不变时,磁流体装置中的平均马赫数越低,其等熵效率越高。
In order to analyze the magnetic fluid flow rapidly, a turbojet engine model was used to make an analogy analysis of the magnetic fluid flow. The variable flow theory and the modified variable efficiency expression were introduced to derive the quasi-one-dimensional Model, the feasibility of the quasi-one-dimensional model is verified by two-dimensional numerical method. The performance of the magneto-fluid pipe flow is analyzed by using the quasi-one-dimensional model. The results show that the introduction of variable efficiency makes the quasi-one-dimensional model more complete When the load factor is constant, the lower the average Mach number in the magnetic fluid device, the higher the isentropic efficiency.