Abstract: Air valves are normally installed at high points along undulating pipelines to allow for air discharge or intake during filling or dewatering. Initial filling of a newly constructed pipeline, or refilling a portion of an ...

Abstract: A homogeneous model for prediction of the longitudinal distributions of pressure, velocity, and void fraction for two-phase bubbly flow in horizontal pipes is presented. The mixture flow is ...

Abstract: The propagation of pressure waves in two-component bubbly flow was analytically and experimentally investigated. An analysis is presented that accounts for the effects attributable to liquid compressibility, pipe elasticity, ...

Abstract: Check valves are normally installed at pumping stations to prevent reverse flow through pumps after pump shutdown. Check-valve slam appears to be among the most common causes of water hammer in water supply systems. A ...