In the model of the turboexpander, the theory of unary flow is adopted, which assumes the flow inside the turboexpander is one dimension, steady, viscous and thermal isolation flow.

• 在透平膨胀机的数学模型中，本文采用了一元流动理论，假定透平膨胀机内部流动为一维、稳定、粘性流体的绝热流动。