Influence of Pressure Stabilizer Perforation Area on Character of Unsteady Fluid Motion in Hydraulic Systems

Abstract

One of the main causes of pipeline systems' failure are sharp changes and fluctuations in pressure caused by various reasons. Pressure stabilizer is a modern and effective mean for damping of wave processes. The constructive scheme of the device is a pipeline with uniformly distributed perforation through which liquid can flow from the pipeline into a damping add-on above the perforated part of it. The article discusses the pipeline scheme, in which occurs water hammer. It is investigated the problem of optimal perforation area under the assumed constant parameters of the stabilizer. It was used a numerical method of characteristics. Index Terms-pressure stabilizer, water hammer, pipelines, unsteady flow, incompressible liquid, method of characteristics.

Reduction of Harmful Pressure Fluctuations in Pipelines by Means of Introduction of Energy Damping Segments

“…For numerical calculation method of characteristics is applied, which is considered in detail in [11], [12], [13]. As the main characteristics of the flow are taken excess water head H [m] and liquid discharge Q [m 3 /sec].…”