Results 51 to 60 of about 115,694 (300)
Discharge Coefficients of Standard Spillways at High Altitudes
Designs, 2023 This paper presents the experimental campaign conducted near the Condoroma dam at 4075 m a.s.l. in an experimental setup consisting of a series of standard profile spillways with a vertical upstream face of up to five different dimensionless heights (P/Hd).
Víctor Rendón +5 more
openaire +4 more sources
Experimental and numerical analysis of flow hydraulics in triangular and rectangular piano key weirs
Water Science, 2020 Piano key weir is a new type of spillways designed to improve the discharge capacity of dams. Generally, increasing the upstream hydraulic load in piano key weirs results in reduced discharge capacity of the weir.
Rezvan Ghanbari, Mohammad Heidarnejad
doaj +1 more source
Discharge Coefficient of Combined Orifice-Weir Flow
, 2018 Combined orifice-weir flow is a complex phenomenon in hydropower and the discharge capacity of a structure affects the safety of the structure. It is essential to propose an equation for computing the discharge coefficient of combined orifice-weir flow ...
Wen-Hong Dai +3 more
core +1 more source
Experimental investigation of the discharge coefficient of labyrinth weirs with asymmetric cycles
, 2022 This study investigated the discharge coefficient in asymmetric rectangular labyrinth weirs. A dimensional analysis was carried out which showed that the discharge coefficient is a function of dimensionless parameters, such as the ratio of ...
Mehdi Momeni +3 more
core +1 more source
Advanced Engineering Materials, EarlyView.A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du +4 more
wiley +1 more source
Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys
Advanced Engineering Materials, EarlyView.Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak +3 more
wiley +1 more source
Experimental Study of Discharge Coefficient of Symmetric and Asymmetric Rectangular Labyrinth Weirs
علوم آب و خاک, 2022 The discharge coefficient of labyrinth weirs increases with increasing the crest length in a certain width range. The present research was carried out in a laboratory flume with a length of 8 m, a width of 0.6 m, and a height of 0.6 m.
H. Elahifar +3 more
doaj
Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy
Advanced Engineering Materials, EarlyView.A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang +10 more
wiley +1 more source
Research on the mixed discharge capacity of new hydraulic flap gate
工程科学与技术, 2013 :Using a conceptual model test to explore new type of hydraulic flap gate mixed discharge capacity of weir and orifice flow, getting the relationship of opening degree, flow, and the water level, proposed a method of calculation the mixed discharge ...
Lei Ming-Hui, Nie Ruihua
doaj
Utilization of ANN technique to estimate the discharge coefficient for trapezoidal weir-gate
Open Engineering, 2022 Developing and assessing the performance of water projects and irrigation networks is based on many factors, such as flow measurement. Weir and gate structures have been extensively utilized for flow measurement and to get rid of sediments.
Sahib Jumana Hadi +2 more
doaj +1 more source