Research of Sewage Marine Discharge Diffusion Effect under Deep Water

2013 ◽  
Vol 726-731 ◽  
pp. 1027-1031
Author(s):  
Hang Yu ◽  
Jing Feng Bai ◽  
Xin Hai Wang ◽  
Hong Xin Zhao
Keyword(s):  
Model Test ◽  
Deep Water ◽  
Near Field ◽  
Large Angle ◽  
Hydraulic Model ◽  
Experimental Results ◽  
Premature Convergence ◽  
Design Parameters ◽  
Diffusion Effect ◽  
Horizontal Angle

The sewage diffusion effect under deep water was carried out between different diffuser design parameters based on the hydraulic model test, and Huizhou Dayawan sewage marine disposal project was taken as an example. The experimental results show that the design parameters are significant for sewage diffusion at the near field. For Dayawan project, jet angle was controlled to be 20 degree, and horizontal angle was controlled to be 90 degree. It not only can ensure that sewage fully diluted mixed, also can avoid the premature convergence and sewage lifting. It is feasible for selecting large angle nozzle under deep water and there are some technical bases have been provided for other sewage marine disposal project.

Research on Sewage Marine Discharge Effect in Xian Ren-Dao Port

2014 ◽  
Vol 955-959 ◽  
pp. 2349-2352
Author(s):  
Hang Yu ◽  
Jing Feng Bai
Keyword(s):  
Marine Environment ◽  
Model Test ◽  
Deep Water ◽  
Large Angle ◽  
Hydraulic Model ◽  
Premature Convergence ◽  
Design Parameters ◽  
Horizontal Angle ◽  
Environmental Material ◽  
Port Engineering

The sewage diffusion is an environmental material for protecting marine environment. It plays an important role in port engineering. Its effect under deep water was carried out between different diffuser design parameters based on the hydraulic model test, and Xian ren-dao port sewage marine disposal project was taken as an example. For South port project, jet angle was controlled to be 0 degree, and horizontal angle was controlled to be 0 degree. It not only can ensure that sewage fully diluted mixed, also can avoid the premature convergence and sewage lifting. It is feasible for selecting large angle nozzle under deep water and there are some technical bases have been provided for other sewage marine disposal project.

Research on Sewage Marine Discharge Effect in Cao Fei-Dian Port

2013 ◽  
Vol 807-809 ◽  
pp. 1108-1112
Author(s):  
Hang Yu ◽  
Jing Feng Bai
Keyword(s):  
Marine Environment ◽  
Model Test ◽  
Deep Water ◽  
Large Angle ◽  
Hydraulic Model ◽  
Premature Convergence ◽  
Design Parameters ◽  
Horizontal Angle ◽  
Environmental Material ◽  
Port Engineering

The sewage diffusion is an environmental material for protecting marine environment. It plays an important role in port engineering. Its effect under deep water was carried out between different diffuser design parameters based on the hydraulic model test, and Cao Fei-dian port sewage marine disposal project was taken as an example. For South port project, jet angle was controlled to be 0 degree, and horizontal angle was controlled to be 0 degree. It not only can ensure that sewage fully diluted mixed, also can avoid the premature convergence and sewage lifting. It is feasible for selecting large angle nozzle under deep water and there are some technical bases have been provided for other sewage marine disposal project.

Research on Diffusion Effect of Sewage Marine Discharge from Different Angles

2014 ◽  
Vol 675-677 ◽  
pp. 551-555
Author(s):  
Hang Yu
Keyword(s):  
Phase Ii ◽  
Marine Environment ◽  
Model Test ◽  
Deep Water ◽  
Large Angle ◽  
Premature Convergence ◽  
Design Parameters ◽  
Diffusion Effect ◽  
Environmental Material ◽  
Port Engineering

The sewage diffusion is an environmental material for protecting marine environment. It plays an important role in port engineering. Its effect under deep water was carried out between different diffuser design parameters based on the hydraulic model test, and YangKou port sewage marine disposal project phase II was taken as an example. For this project, jet angle was controlled to be 0 degree, and horizontal angle was controlled to be 0 degree. It not only can ensure that sewage fully diluted mixed, also can avoid the premature convergence and sewage lifting. It is feasible for selecting large angle nozzle under deep water and there are some technical bases have been provided for other sewage marine disposal project.

Research of Environmental Materials with Sewage Marine Discharge Diffusion Effect in YangKou Port

2013 ◽  
Vol 387 ◽  
pp. 15-19
Author(s):  
Hang Yu ◽  
Jing Feng Bai ◽  
Xin Hai Wang ◽  
Hong Xin Zhao
Keyword(s):  
Marine Environment ◽  
Model Test ◽  
Deep Water ◽  
Large Angle ◽  
Premature Convergence ◽  
Design Parameters ◽  
Diffusion Effect ◽  
Environmental Material ◽  
Environmental Materials ◽  
Port Engineering

The sewage diffusion is an environmental material for protecting marine environment. It plays an important role in port engineering. Its effect under deep water was carried out between different diffuser design parameters based on the hydraulic model test, and YangKou sewage marine disposal project was taken as an example. For YangKou project, jet angle was controlled to be 0 degree, and horizontal angle was controlled to be 0 degree. It not only can ensure that sewage fully diluted mixed, also can avoid the premature convergence and sewage lifting. It is feasible for selecting large angle nozzle under deep water and there are some technical bases have been provided for other sewage marine disposal project.

Research on Diffusion Effect from Different Angles of Yangkou Sewage Marine Discharge Engineering Phase I

2014 ◽  
Vol 1065-1069 ◽  
pp. 3182-3186
Author(s):  
Hang Yu
Keyword(s):  
Phase I ◽  
Marine Environment ◽  
Model Test ◽  
Deep Water ◽  
Large Angle ◽  
Premature Convergence ◽  
Design Parameters ◽  
Diffusion Effect ◽  
Environmental Material ◽  
Port Engineering

The sewage diffusion is an environmental material for protecting marine environment. It plays an important role in port engineering. Its effect under deep water was carried out between different diffuser design parameters based on the hydraulic model test, and YangKou port sewage marine disposal project phase I was taken as an example. For this project, jet angle was controlled to be 0 degree, and horizontal angle was controlled to be 0 degree. It not only can ensure that sewage fully diluted mixed, also can avoid the premature convergence and sewage lifting. It is feasible for selecting large angle nozzle under deep water and there are some technical bases have been provided for other sewage marine disposal project.

Research on Sewage Discharge Effect Simulation in Cao Fei-Dian SCIP

2013 ◽  
Vol 864-867 ◽  
pp. 1411-1414
Author(s):  
Hang Yu ◽  
Jing Feng Bai ◽  
Xin Hai Wang
Keyword(s):  
Marine Environment ◽  
Model Test ◽  
Deep Water ◽  
Large Angle ◽  
Hydraulic Model ◽  
Premature Convergence ◽  
Design Parameters ◽  
Sewage Discharge ◽  
Environmental Material ◽  
Port Engineering

The sewage diffusion is an environmental material for protecting marine environment. It plays an important role in port engineering. Its effect under deep water was carried out between different diffuser design parameters based on the hydraulic model test, and Cao Fei-dian SCIP sewage marine disposal project was taken as an example. For this project, jet angle was controlled to be 0 degree, and horizontal angle was controlled to be 0 degree. It not only can ensure that sewage fully diluted mixed, also can avoid the premature convergence and sewage lifting. It is feasible for selecting large angle nozzle under deep water and there are some technical bases have been provided for other sewage marine disposal project.

Simulation Study on Sewage Discharge Environmental Effect in Tianjin South Port

2014 ◽  
Vol 1010-1012 ◽  
pp. 630-634
Author(s):  
Hang Yu
Keyword(s):  
Model Test ◽  
Deep Water ◽  
Simulation Study ◽  
Environmental Effect ◽  
Large Angle ◽  
Design Parameters ◽  
Sewage Discharge ◽  
Environmental Material ◽  
Port Engineering ◽  
Marine Environmental

The sewage diffusion is an environmental material for marine environmental protecting. It plays an important role in port engineering now. Its effect under deep water was carried out between different diffuser design parameters based on the hydraulic model test, and sewage marine disposal project in Tianjin south port was taken as an example. For this project, jet angle was controlled to be 0 degree, and horizontal angle was controlled to be 45 degree. It not only can ensure that sewage fully diluted mixed, also can avoid the premature convergence and sewage lifting. It is feasible for selecting large angle nozzle under deep water and there are some technical bases have been provided for other sewage marine disposal project.

Hydraulic Model Test of Stability of Amenity-Oriented Breakwater

1999 ◽  
Author(s):  
Shoji Kunitomi ◽  
Hajime Mase ◽  
Tomotsuka Takayama
Keyword(s):  
Model Test ◽  
Hydraulic Model

The Influence of Water Regime on the Performance of Aquatic Plants

1994 ◽  
Vol 29 (4) ◽  
pp. 127-132 ◽  
Author(s):  
Naomi Rea ◽  
George G. Ganf
Keyword(s):  
Deep Water ◽  
Aquatic Plants ◽  
Water Regime ◽  
Optimal Performance ◽  
Experimental Results ◽  
The Other ◽  
Full Potential ◽  
Influence Of Water ◽  
Emergent Species

Experimental results demonstrate bow small differences in depth and water regime have a significant affect on the accumulation and allocation of nutrients and biomass. Because the performance of aquatic plants depends on these factors, an understanding of their influence is essential to ensure that systems function at their full potential. The responses differed for two emergent species, indicating that within this morphological category, optimal performance will fall at different locations across a depth or water regime gradient. The performance of one species was unaffected by growth in mixture, whereas the other performed better in deep water and worse in shallow.

Near-field mean flow dynamics of a cylindrical canopy patch suspended in deep water

2018 ◽  
Vol 858 ◽  
pp. 634-655 ◽  
Author(s):  
Jian Zhou ◽  
Subhas K. Venayagamoorthy
Keyword(s):  
Deep Water ◽  
Near Field ◽  
Flow Dynamics ◽  
Flow Diversion ◽  
Circular Cylinders ◽  
Published Data ◽  
Global Flow ◽  
Mean Flow ◽  
Near Wake ◽  
Local Flow

The time-averaged flow dynamics of a suspended cylindrical canopy patch with a bulk diameter of $D$ is investigated using large-eddy simulations (LES). The patch consists of $N_{c}$ constituent solid circular cylinders of height $h$ and diameter $d$, mimicking patchy vegetation suspended in deep water ($H/h\gg 1$, where $H$ is the total flow depth). After validation against published data, LES of a uniform incident flow impinging on the canopy patch was conducted to study the effects of canopy density ($0.16\leqslant \unicode[STIX]{x1D719}=N_{c}(d/D)^{2}\leqslant 1$, by varying $N_{c}$) and bulk aspect ratio ($0.25\leqslant AR=h/D\leqslant 1$, by varying $h$) on the near-wake structure and adjustment of flow pathways. The relationships between patch geometry, local flow bleeding (three-dimensional redistribution of flow entering the patch) and global flow diversion (streamwise redistribution of upstream undisturbed flow) are identified. An increase in either $\unicode[STIX]{x1D719}$ or $AR$ decreases/increases/increases bleeding velocities through the patch surface area along the streamwise/lateral/vertical directions, respectively. However, a volumetric flux budget shows that a larger $AR$ causes a smaller proportion of the flow rate entering the patch to bleed out vertically. The global flow diversion is found to be determined by both the patch geometrical dimensions and the local bleeding which modifies the sizes of the patch-scale near wake. While loss of flow penetrating the patch increases monotonically with increasing $\unicode[STIX]{x1D719}$, its partition into flow diversion around and beneath the patch shows a non-monotonic dependence. The spatial extents of the wake, the flow-diversion dynamics and the bulk drag coefficients of the patch jointly reveal the fundamental differences of flow responses between suspended porous patches and their solid counterparts.

Sign in / Sign up

Export Citation Format

Share Document