圆锥形细管中恒温定常气流的状态分析

本文对圆锥形细管中恒温定常气流的状态方程进行了分析，指出了气体在圆锥形细管中保持恒温定常流动状态时入流速度的容许范围，并分别讨论了当入流速度充分小或充分大时管内及出口处气流的速度和气体的密度状况。

Analysis of the State of Airflow in Thin Conic Pipes

In this article, the state equation of constant temperature and stream line airflow in a piece of thin conic pipe is analysed, the allowable range of inflow velocity is determined in which the airflow keeps constant temperature and stream line, and the velocity and the density of airflow at the exit and everywhere in the pipe are discussed when the inflow velocity is low or high enough.