Numerical simulation of dissolved aquaculture waste transport based on water circulation around shellfish and salmon farm sites in Onagawa Bay, Northeast Japan

2020 ◽  
Author(s):  
Jinxin Zhou ◽  
Daisuke Kitazawa ◽  
Takero Yoshida ◽  
Toyonobu Fujii ◽  
Junbo Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Water Circulation ◽  
Salmon Farm ◽  
Aquaculture Waste

Numerical Simulation of Dissolved Oxygen Transfer in an Aerated Pond

2014 ◽  
Vol 587-589 ◽  
pp. 588-593
Author(s):  
Guang Lin Wu ◽  
Liang Sheng Zhu ◽  
Fang Cheng Li
Keyword(s):  
Numerical Simulation ◽  
Dissolved Oxygen ◽  
Transfer Process ◽  
Oxygen Transfer ◽  
Water Circulation ◽  
Flow Structures ◽  
Oxygen Distribution ◽  
Water Pond ◽  
Water Wheel ◽  
Volume Method

Dissolved oxygen transfer in an aeration pond was studied by numerical method in this paper. 2d water pond current induced by water-wheel aerators and oxygen transfer process was simulated by finite volume method. In order to verify the relationships between current and dissolved oxygen transfer, we set 4 layout styles with 4 aerators in a water pond. It is proved that different layout styles induce different flow structures and dissolved oxygen distribution. Traditional layout (style a) is not the best way for oxygen transfer, and other styles (style b, c &d) are all superior to the traditional layout. But water flow structures are not the same results. Water circulation performance is style a, c, b, d in sequence. Style c (flow to corners along pond wall) is the best way by comprehensive consideration of both water circulation performances and dissolved oxygen distribution.

scholarly journals NUMERICAL SIMULATION OF WATER CIRCULATION IN A CYLINDRICAL HORIZONTAL THERMAL TANK

2009 ◽  
Vol 8 (1) ◽  
pp. 72
Author(s):  
D. L. Savicki ◽  
H. A. Vielmo
Keyword(s):  
Numerical Simulation ◽  
Flow Rate ◽  
Significant Variation ◽  
Thermal Stratification ◽  
Numerical Study ◽  
Three Dimensional ◽  
Velocity Fields ◽  
Water Circulation ◽  
Numerical Code ◽  
Temperature And Velocity Fields

It is carried out a numerical study of the three-dimensional temperature and velocity fields in a cylindrical horizontal thermal tank during the process of water circulation. The numerical simulations were made using an academic Finite Volumes numerical code. This simulation considers that the thermal tank is connected to solar collectors. So, in the tank, the inlet jet temperature is higher than those inside the tank. This study aims to investigate the influence of the inlet jet on thermal stratification. The results show that for the mass flow rate studied, there is no significant variation on thermal stratification.

Water uptake by substituted amylose tablets: experimentation and numerical simulation

2009 ◽  
Vol 00 (00) ◽  
pp. 090904073309027-8
Author(s):  
H.W. Wang ◽  
S. Kyriacos ◽  
L. Cartilier
Keyword(s):  
Numerical Simulation ◽  
Water Uptake
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