Results 21 to 30 of about 1,336 (145)
Shape of the Nappe During Free Overfall from a Rectangular Channel with Zero Bed Slope
Journal of Hydrology and Hydromechanics, 2013 The paper deals with selected procedures used to calculate the shape of compact nappe during free overfall from a smooth horizontal channel with rectangular cross section.
Zachoval Zbyněk +4 more
doaj +1 more source
Variation of Water Depth on Normal and Skewed Broad Crested Weirs
Tikrit Journal of Engineering Sciences, 2007 This paper present the variation between brink and critical depths for free overfall, of water over two models of broad crested weirs with different edge, straight vertical and skewed with an angle (30)o. The discharge was measured for the two models and
Ahmed Y. Mohammed +2 more
doaj +1 more source
Air-Water Mass Transfer on a Stepped Waterway [PDF]
, 2005 Stepped waterways are commonly used as river training, debris dam structures, storm water systems and aeration cascades. The present study was focused on analysis of basic air-water flow properties on a low gradient stepped chute, combined with dissolved
Chanson, H., Toombes, L.
core +1 more source
Characteristics of flow over the free overfall of triangular channel
MATEC Web of Conferences, 2018 In the present paper, the effects of side slopes, bed slopes and bed roughness on the flow over free overfalls in triangular channels have been studied experimentally.
Irzooki Raad, Hasan Safa
doaj +1 more source
Flow patterns in nappe flow regime down low gradient stepped chutes [PDF]
, 2008 Although modern gravity dam spillways include often steep chutes operating in skimming flow regime, succession of free-falling nappes (i.e. nappe flow regime) are more common on low gradient chutes and cascades, and this flow situation received little ...
Chanson H. +13 more
core +1 more source
Stepped Spillway Flows and Air Entrainment [PDF]
, 1993 Stepped spillways have become a popular method for handling flood releases. The steps increase significantly the rate of energy dissipation taking place on the spillway face and reduce the size of the required downstream energy dissipation basin.
Chanson, Hubert
core +1 more source
Numerical Modeling of 3D Flow Field among a Compound Stilling Basin
Mathematical Problems in Engineering, Volume 2019, Issue 1, 2019., 2019 Due to great velocity gradients among the outgoing flow, it is much common to form large‐scale reverse flow with oblique movements outside the conventional separated stilling basin. Aimed at above problems, this paper proposes to remove the longitudinal splitter wall and then physically and numerically investigate the corresponding influence upon the ...
Zhao Zhou +2 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2013, Issue 1, 2013., 2013 Adjusting and controlling the relative humidity (RH) inside package is crucial for ensuring the quality of modified atmosphere packaging (MAP) of fresh produce. In this paper, an improved kinetic model for predicting the RH in MAP was developed. The model was based on heat exchange and gases mass transport phenomena across the package, gases heat ...
Li-xin Lu +3 more
wiley +1 more source
Hydraulics of floods upstream of horseshoe canyons and waterfalls [PDF]
, 2015 Horseshoe waterfalls are ubiquitous in natural streams, bedrock canyons, and engineering structures. Nevertheless, water flow patterns upstream of horseshoe waterfalls are poorly known and likely differ from the better studied case of a one-dimensional ...
Lamb, Michael P., Lapotre, Mathieu G. A.
core +1 more source
Modeling and analysis of pooled stepped chutes [PDF]
, 2010 We consider an application of pooled stepped chutes where the transport in each pooled step is described by the shallow--water equations. Such systems can be found for example at large dams in order to release overflowing water.
Guerra, Graziano +2 more
core +1 more source