Results 201 to 210 of about 586 (222)

Simulations on Skimming Flow over a Vertical Drop Pool

Journal of Engineering Mechanics, 2014
AbstractThe installation of a drop pool in an open channel is aimed to dissipate the flow energy that diminishes the destruction of the downstream channel. Previous studies have been conducted experimentally on the hydraulic properties for flow over the pools. The numerical simulations based on the Reynolds average Navier-Stokes (RANS) equation and the
Ching-Piao Tsai, Ching-Ching Yen, Chang Lin   +2 more
openaire   +1 more source

ENERGY DISSIPATION IN SKIMMING FLOW OVER STEPPED SPILLWAYS

ISH Journal of Hydraulic Engineering, 1996
ABSTRACT Stepped spillways are provided to reduce the size of stilling basins with the view of reducing the overall cost of spillway and energy dissipation device. The characteristics of flow over stepped spillway are still not well known. This paper presents an equation for estimation of energy loss on stepped spillway for skimming flow regime, which ...
Sandip P. Tatewar, Ramesh N. Ingle
openaire   +1 more source

Experimental Study of Turbulence Manipulation in Stepped Spillways: Implications on Flow Resistance in Skimming Flows [PDF]

, 2005
Current expertise in air-water turbulent flows on stepped chutes is limited to laboratory experiments at low to moderate Reynolds numbers on flat horizontal steps. In this study, highly turbulent air-water flows skimming down a large-size stepped chute were systematically investigated with a 22 degree slope.
Gonzalez, Carlos A., Chanson, Hubert
openaire   +2 more sources

Onset of Skimming Flow on Stepped Spillways

Journal of Hydraulic Engineering, 1999
M. R. Chamani, N. Rajaratnam
openaire   +1 more source

Self-Similarity of Air-Water Flows in Skimming Flows on Stepped Spillways

2007
Skimming flows on stepped spillways are characterised by a significant rate of turbulent dissipation on the chute. Herein an advanced signal processing of traditional conductivity probe signals is developed to provide further details on the turbulent time and length scales.
Carosi, G., Chanson, H.
openaire   +1 more source

EFFECT OF RELATIVE STEP HEIGHTS ON VELOCITY CHARACTERISTICS AND LOCAL SKIN FRICTION FOR NONAERATED SKIMMING FLOWS IN STEPPED CHANNELS

Journal of Japan Society of Civil Engineers Ser B1 (Hydraulic Engineering), 2021
Masayuki Takahashi, Iwao Ohtsu
exaly  

Turbulence and cavity recirculation in air–water skimming flows

Journal of Hydraulic Research/De Recherches Hydrauliques, 2008
Hubert Chanson
exaly  

Hydraulics of skimming flows on stepped chutes: The effects of inflow conditions?

Journal of Hydraulic Research/De Recherches Hydrauliques, 2006
Hubert Chanson
exaly  

Experimental study of transition and skimming flows on stepped spillways in RCC dams: qualitative analysis and pressure measurements

Journal of Hydraulic Research/De Recherches Hydrauliques, 2005
Josep Dolz
exaly  

An experimental study of effects of step roughness in skimming flows on stepped chutes

Journal of Hydraulic Research/De Recherches Hydrauliques, 2008
Hubert Chanson, Masayuki Takahashi
exaly