Results 251 to 260 of about 24,409 (308)

Flow Patterns in a Four-Branch Junction with Supercritical Flow

Journal of Hydraulic Engineering, 2008
This paper describes the flow structures that occur in a 90° junction of four open channels with supercritical flow in two orthogonal inlet channels. An experimental facility was constructed to permit the measurement of flow rates, water depths, and the positions of hydraulic jumps in the channels.
Emmanuel Mignot, Nicolas Riviere, R J Perkins   +2 more
exaly   +3 more sources

Supercritical flow in sewer manholes

Journal of Hydraulic Research, 2005
The breakdown of supercritical flow in sewer manholes may be dangerous when designed according to current practice. This issue is particularly relevant for drainage systems conveying discharge in both stormwater and combined sewers. Based on detailed hydraulic experimentation, the main features of three manhole types were observed, including the ...
GISONNI, Corrado, HAGER W.
openaire   +4 more sources

Supercritical Flow across Sewer Manholes

Journal of Hydraulic Engineering, 2002
The hydraulics of supercritical flow across manholes in sewers is explored using systematic experimentation. Due to the expansion at the manhole entrance an in-manhole wave is generated. Further, at the downstream manhole end, flows with a sufficiently large filling ratio impinge on the wall and lead to a so-called swell. In addition, due to shock wave
GARGANO, Rudy, HAGER W. H.
openaire   +3 more sources

Supercritical Bend Flow

Journal of Hydraulic Engineering, 1997
Supercritical flow in chute bends is considered both theoretically and experimentally. The conventional approach is found to apply to small relative curvature only. The knowledge is extended to large bend numbers, and a design procedure is presented. Supercritical bend flow in the smooth horizontal and rectangular channel is considered.
Roger Reinauer, Willi H. Hager
openaire   +1 more source

Novel Diversion Structure for Supercritical Flow

Journal of Hydraulic Engineering, 2013
AbstractIn urban drainage systems, it is usually necessary to split the storm water discharge among different sewer branches because of limited flow capacity of either hydraulic structures or sewer lines. For this purpose, sewer sideweirs and leaping weirs are generally used as diversion overflow structures.
DEL GIUDICE, GIUSEPPE, PADULANO, ROBERTA, CARRAVETTA, ARMANDO   +2 more
openaire   +2 more sources

Supercritical Flow over a Dentated Sill

Journal of Hydraulic Engineering, 2011
Experimental analysis concerning supercritical flow over a dentated sill in nonsubmerged conditions and the local scour downstream of this sill is presented. In this case, the energy dissipation is incomplete so that a scour control downstream of the hydraulic structure could be required.
Cancian Putton V., Marson C., FIOROTTO, Virgilio, CARONI, ELPIDIO   +3 more
openaire   +2 more sources

Airfoil Design in Subcritical and Supercritical Flows

Journal of Applied Mechanics, 1979
The “inverse” or “design” problem in aerodynamics, which solves for the airfoil shape that induces a prescribed chordwise surface pressure subject to additional requirements on trailing edge closure, is considered in the transonic small-disturbance limit. A new formulation for the stream function ψ is suggested which uses well-set Neumann conditions on
Chin, W. C., Rizzetta, D. P.
openaire   +2 more sources

Vortex Drop Shaft for Supercritical Flow

2009
Vortex drop shafts are used in urban drainage systems to connect two sewers located at considerably different elevations by means of a vertical conduit. The vortex drop shaft was first designed by Drioli (1947). It was then studied by other authors with reference to subcritical approach flow.
DEL GIUDICE G, GISONNI, Corrado, RASULO G.   +2 more
openaire   +3 more sources

Novel Approach for Side Weirs in Supercritical Flow

Journal of Irrigation and Drainage Engineering, 2013
AbstractSide weirs are hydraulic structures widely used in practice and extensively studied in the technical literature. The flow along a side weir is a classic example of spatially varied flow, the study of which is generally performed by means of a momentum or energy approach.
GRANATA, Francesco, DE MARINIS, Giovanni, GARGANO, Rudy, TRICARICO, Carla   +3 more
openaire   +4 more sources

Unsteady Airloads in Supercritical Transonic Flows

AIAA Journal, 1979
Results obtained from a simplified theory of unsteady perturbations of supercritical two-dimensional transonic flows, introduced in an earlier paper, are presented. Unsteady loads generated by an oscillating flap and by airfoils oscillating as a whole are given with comparisons to experimental results and finite difference solutions.
openaire   +1 more source