Simple hydraulic structures, such as weirs, allow measuring flow discharge by using the upstream depth and a stage–discharge relationship. In this relationship, coefficient is introduced to correct all effects neglected in derivation (viscosity, surface tension, velocity head approach channel, turbulence, non-uniform profile, streamline curvature due weir contraction). paper, dimensional analys...

Weirs are simple control structures usually built across channels for water storage and measurementof flow rates. The main target of the present study is to numerically simulate experimentally thehydraulic performance circular crested normal weirs. For numerical simulation, commercialpackage ANSYS CFX utilized adopting tetrahedrons mesh with a maximum total number 1932301elements, while, experi...

Abstract The Biforcation Structure which is located at the branching of Moilong and Mansahang Rivers, Banggai District functions as a weir Free Intake distributes water proportionally to its downstream, so that it can function flood control structure same time supply (Toili) Weir. incident on June 18, 2019 resulted in collapse submerged seven villages District. restructure very much needed by c...

introduction: side weir structures are extensively used in hydraulic engineering, irrigation and environmental engineering, and it usually consists of a main weir and a lateral channel. side weirs are also used as an emergency structure. this structure is installed on one side or both sides of the main channel to divert the flow from the main channel to the side channel. lateral outflow takes p...

Abstract The circular crested weir (CCW) has been introduced as weirs having a high discharge coefficient (Cd). ratio of flow head to the radius crest ( H / R ) is most important parameter affecting Cd, that $${\text{Cd}} \approx a\left( {H/R} \right)^{b}$$ Cd ? a <mml:m...

BACKGROUND Among the various hippocampal network patterns, sharp wave-ripples (SPW-R) are currently the mechanistically least understood. Although accurate information on synaptic interactions between the participating neurons is essential for comprehensive understanding of the network function during complex activities like SPW-R, such knowledge is currently notably scarce. METHODOLOGY/PRINC...

different construction materials with different roughness used to make circular weirs highly affect surface roughness and, in turn, flow hydraulics passing over these structures.  in the present research, numerous experiments under different hydraulic conditions were performed on a physical model to study the effects of roughness on flow hydraulics over a circular weir. the flow hydraulics incl...