One potential problem affecting below-grade storm-water storage tunnels is the occurrence
of geysering, which is defined as the return of conveyed water to grade. Most investigations …

Events that are referred to as geysers have been observed in storm-water or combined
sewer systems and are associated with jets of water rising through manholes to a …

A finite-volume model was built upon earlier work with the aim of simulating free surface
flows, pressurized flows and their simultaneous occurrence (mixed flows) in single-liquid …

The behavior of stormwater systems can be greatly altered by the presence of air pockets
within the pressurized portion of the flow. While rapid filling conditions in stormwater storage …

Below-grade stormwater storage tunnels are designed to provide relief for collection
networks during intense rain events. Air must be evacuated as the tunnel fills and …

This study presents the results from detailed experiments of the two-phase pressurized flow
behavior during the rapid filling of a large-scale pipeline. The physical scale of this …

This paper reports a laboratory study on violent geysers in a vertical pipe. Each geyser
produced consists of a few consecutive violent eruptions within a time frame of a few …

This paper investigates the source of the spurious numerical oscillations often observed in
simulations using the well-known Preissmann slot method and proposes a nonoscillatory …

A filling operation generates continuous changes over the shape of an air–water interface,
which can be captured using a 3D CFD model. This research analyses the influence of …

Geysers, which involve the explosive release of water through vertical shafts connected to a
nearly horizontal pipeline, have been attributed to either pipeline surge or the release of air …