ON THE STABILITY OF ISOTHERMAL DISCONTINUITY
关于等温间断的稳定性

In this paper the stability of isothermal discontinuity in a iluid is studied. It is shown that there may exist three kinds of steady shock waves: shock wave with smooth transition region unstable isothermal shock and stable isothermal shock. The conditions for the appearance of a stable isothermal shock are derivedaccording to the general principle. For ideal gases we obtaine:p1/p0>r/2-r.