Investigation of flow structure with bounded artificial gas cavity using research and training hydrodynamic stand
Flows with developed gas cavity in the flow of the liquid component in many cases are non-stationary and are characterized by wave formation at the interface in case of fluctuations changing the size of the cavitation formation and the pressure in the cavity and in the surrounding flow. All this is accompanied by a batch entrainment of the gas component of the cavity. The mechanism of which may vary depending on the expenditure of the flow parameters of the phases and other factors. The most intense pulsations occur in the hydraulic lines when the artificial cavity closes on the downstream local hydraulic resistance. This limited gas cavity is self-excited power perturbations in the related oscillatory system "cavity - pipeline". To clarify the characteristics inherent in the process a hydrodynamic stand was developed. Split-wave development on the cavity with fluctuations in the system in case of horizontal and vertical location of the work area is presented.