Results 1 to 10 of about 486 (122)
Turbulence characteristics in skimming flows on stepped spillways [PDF]
Canadian Journal of Civil Engineering, 2008 The stepped spillway design is characterized by an increase in the rate of energy dissipation on the chute associated with a reduction of the size of the downstream energy dissipation system. This study presents a thorough investigation of the air–water flow properties in skimming flows with a focus on the turbulent characteristics.
Hubert Chanson
exaly +4 more sources
Hydraulics of skimming flows over stepped channels and spillways [PDF]
Journal of Hydraulic Research/De Recherches Hydrauliques, 1994 Stepped channel applications include a broad range of domains. A detailed review (past and present) was published by the author (Chanson 1995). To date most studies on gepped chutes applies to gradually variedflows in rectangular prismatic channels with horizontal. The three-dimensional features of stepped chute flows are not accounted.
Hubert Chanson
exaly +5 more sources
ANALYSIS OF NON-UNIFORM-AEREATED SKIMMING FLOWS IN STEPPED CHANNELS [PDF]
Journal of Japan Society of Civil Engineers Ser B1 (Hydraulic Engineering), 2013 For the hydraulic design of steep stepped channels, it is important to elucidate the aerated flow characteristics of skimming flows both in nonuniform and quasi-uniform flows. For the nonuniform aerated flow region, an analytical equation for calculation of the aerated flow depth is developed, and the surface profile and specific energy are calculated ...
Masayuki Takahashi, Iwao Ohtsu
exaly +4 more sources
Interactions between cavity flow and main stream skimming flows: an experimental study [PDF]
Canadian Journal of Civil Engineering, 2004 In the last two decades, research on the hydraulics of skimming flows down stepped chutes was driven by needs for better design guidelines. Skimming flows are characterized by significant momentum transfer from the main stream to the recirculation zones.
Hubert Chanson
exaly +4 more sources
NONAERATED SKIMMING FLOWS IN STEPPED CHANNELS
Journal of Japan Society of Civil Engineers Ser B1 (Hydraulic Engineering), 2014 Masayuki Takahashi, Iwao Ohtsu
exaly +3 more sources
Effects of Converging Sidewalls on Skimming Flow over Converging Stepped Spillway
Applied Sciences, 2022 A numerical study is conducted for converging stepped spillways with various spillway slopes, sidewall convergence and flow discharges to understand the influences of converging sidewalls on skimming flows.
Yuling Chen +5 more
doaj +1 more source
The geopolitics of trillion US$ oil & gas rents
International Journal of Sustainable Energy Planning and Management, 2022 Physical oil and gas abundance, turned in market scarcity, do prices of oil and gas spike and cashed rents mount. For the years 1970-2020, the rents from crude oil and natural gas sales are expressed in US$-2020, revealing the magnitude and volatility ...
Aviel Verbruggen
doaj +1 more source
Flow resistance in skimming flow: A critical review [PDF]
, 2020 During very large rainfall events, dams and weirs must be equipped with adequate flood release facilities for a safe dissipation of the kinetic energy of the flow. With stepped spillway design, it is essential to predict accurately the flow resistance associated with the steps.
Chanson, H., Yusuda, Y., Ohtsu, I.
openaire +2 more sources
Location of inception point of alternating steps stepped spillways
Sulaimani Journal for Engineering Sciences, 2023 This study explored the effects of flat-stepped spillways having alternating steps on the inception point location. Two wooden stepped spillways with a longitudinal slope of 26.6° were constructed in a rectangular flume and tested at various discharges ...
Burhan S. Muhammed1 +1 more
doaj +1 more source
Inflow/Outflow Boundary Conditions for Particle-Based Blood Flow Simulations: Application to Arterial Bifurcations and Trees. [PDF]
PLoS Computational Biology, 2015 When blood flows through a bifurcation, red blood cells (RBCs) travel into side branches at different hematocrit levels, and it is even possible that all RBCs enter into one branch only, leading to a complete separation of plasma and RBCs.
Kirill Lykov +4 more
doaj +1 more source