Numerical simulation and experimental study of gas–liquid two-phase flow pattern of hydrodynamic retarder

The internal flow of hydrodynamic retarder is a three-dimensional, complex, viscous, and unstable gas–liquid two-phase flow. importance numerical simulation has been paid attention to, but the research on pattern rarely. Flow diagnosis plays an important role in study because premise establishing mathematical model to accurately determine structure system. Based experimental research, this found corresponding relationship between distribution inside filling rate (expressed as “q”). result shows that, when q = 0.1–0.2, liquid working chamber less. Under action centrifugal force, mainly gets distributed outer ring circulating circle, forming laminar When 0.3–0.4, changes from slug 0.5–0.9, with further increase ratio, becomes dispersed bubble This paper provides effective method for analysis identification retarder.