汽轮机涡轮叶片成核区研究

本文介绍了一种特殊的计算方法,当蒸汽状态从平衡到非平衡,很小的水滴是自发产生的,这种现象称为成核。在没有外部颗粒的情况下,随着流动的不断膨胀,蒸汽的平衡状态发生变化,成为非平衡蒸汽,这种蒸汽称为过冷。两种模型的计算冷凝损失,多分散模型中的侵蚀速率小于单分散模型,因为多分散模型的液滴平均半径小于单分散模型。

This paper introduces a special calculation method,when the steam state from equilibrium to non-equilibrium,very small droplets are spontaneously produced,this phenomenon is called nucleation.In the absence of external particles,as the flow continues to expand,the equilibrium state of the steam changes and becomes non-equilibrium steam,which is called supercooling.The erosion rate of the polydisperse model is lower than that of the monodisperse model,because the average droplet radius of the polydisperse model is smaller than that of the monodisperse model.