Determinate chaos analysis of gas-liquid two phase flow

Both reconstruction of phase space and singularity attractors of pressure and differential pressure signals for gas-liquid two phase flow were studied using determinate chaos theory. The two phase flow is a low dimensional chaos dynamic system. The invariant of singularity attractors, such as Hurst exponent, correlation dimension, Kolmogorov entropy, have close relationship with flow regime. The two phase flow in bubbly flow, slug flow, churn flow, and annular flow with low gas velocity, had positive perduring feature. The reversed perduring processes were first reported in annular flow with great gas velocity.