Studies by PIV-methods of self oscillating hydrodynamic processes in the elements of pipeline

摘要

Investigation of the self-oscillation regimes in the flow chamber modelling elements of stop valves in the pipeline in the systems of heat exchange in the power plants were performed by using PIV methods. Dependency of parameters of self-oscillation regimes on the parameter of the gap between the inlet and outlet pipe line in the chamber was investigated. Simultaneous measurements of the hydrodynamic and acoustic fluctuations allows us to offer explanation of the observed regimes.