Numerical Simulation and Model Test on Hydraulic Characteristics of Long-Distance Inverted Siphon

2012 ◽  
Vol 212-213 ◽  
pp. 1131-1135 ◽  
Author(s):  
Juan Li ◽  
Zhen Wei Mu ◽  
Lin Li
Keyword(s):  
Numerical Simulation ◽  
Model Test ◽  
Three Dimensional ◽  
Flow Characteristics ◽  
Inlet Section ◽  
Hydraulic Characteristics ◽  
Filling Process ◽  
Long Distance ◽  
Three Dimensional Flow ◽  
Inverted Siphon

Make Use of three-dimensional flow field turbulence numerical simulation of unsteady flow k~εturbulence model and tracking the free surface VOF method of long-distance inverted siphon. By numerical calculation of flow characteristics and pressure distribution, carried out with the model test contrast, the results were coordinate and meet the requirements of design. But vortex formed in the filling process, it is recommended to optimize the inverted siphon inlet section. The method of combining calculation and test on the long-distance inverted siphon provide the reference for the design and operation.

scholarly journals Hydraulic Characteristics and Numerical Simulation of the Entrance Section of Ladder-Shaped Spillway

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
X. B. Gu ◽  
Q. H. Wu ◽  
Y. Wang ◽  
H. X. Zhao
Keyword(s):  
Numerical Simulation ◽  
Energy Dissipation ◽  
Dissipation Rate ◽  
Three Dimensional ◽  
Flow Characteristics ◽  
Energy Dissipation Rate ◽  
Numerical Results ◽  
Experimental Results ◽  
Flow State ◽  
Hydraulic Characteristics

The ladder-shaped spillway in a certain reservoir junction is set as the engineering background in the paper. The hydraulic similarly model experiment and three-dimensional numerical simulation of hydraulic characteristics of water flow are performed. The outflow capacity, flow state analysis, velocity distribution, water surface line, pressure, and the energy dissipation rate are analyzed, and experimental results are compared with the numerical results. The conclusions demonstrate that the numerical results of the flow characteristics are very proximate to actual experimental results, the changeable law is the same, and their energy dissipation rate is basically consistent; it shows the feasibility of three-dimensional numerical simulation; the conclusions can provide the basis for the optimization about the flow state of the ladder-shaped spillway in the future.

Rapid fabrication of versatile omni-directional and long-distance three-dimensional flow paper-fluidic analytical devices using a cut-and-insert method for biomedical applications

2018 ◽  
Vol 10 (38) ◽  
pp. 4648-4654 ◽  
Author(s):  
Tae Joon Kwak ◽  
Wookkun Kwon ◽  
Jiang Yang ◽  
Sang Woo Lee ◽  
Woo-Jin Chang
Keyword(s):  
Liquid Flow ◽  
Biomedical Applications ◽  
Low Cost ◽  
Three Dimensional ◽  
Long Distance ◽  
Three Dimensional Flow ◽  
Dimensional Flow ◽  
Rapid Fabrication ◽  
Paper Fluidics ◽  
Cost Regime

Paper fluidics has recently offered an approach to precisely guide liquid flow in analytical devices with a low-cost regime.

Study on Flow Velocity Field of Local Scour around the Pier Protected by the Sediment Storage Dam

2012 ◽  
Vol 594-597 ◽  
pp. 1975-1978
Author(s):  
Hai Jing Zhao ◽  
Dan Xun Li ◽  
Xing Kui Wang
Keyword(s):  
Velocity Field ◽  
Flow Velocity ◽  
Physical Model ◽  
Model Test ◽  
Three Dimensional ◽  
Local Scour ◽  
Physical Model Test ◽  
Three Dimensional Flow ◽  
Sediment Storage ◽  
Flow Velocity Field

Aimed at the representative project which is protected by the downstream sediment storage dam, three dimensional flow velocity field in local scour area around the separate bridge pier via physical model test was studied. The influences of shaping the eroded pit caused by the velocities in different directions were analyzed. The distribution results of flow velocity field in local scour pit near the pier protected by the sediment storage dam, deduced from the paper, will provide references for the defensive design of bridge projects.

Sign in / Sign up

Export Citation Format

Share Document