Abstract
The settling flux of biodeposition affects the environmental quality of cage culture areas and determines their environmental carrying capacity. Simple and effective simulation of the settling flux of biodeposition is extremely important for determining the spatial distribution of biodeposition. Theoretically, biodeposition in cage culture areas without specific emission rules can be simplified as point source pollution. Fluent is a fluid simulation software that can simulate the dispersion of particulate matter simply and efficiently. Based on the simplification of pollution sources and bays, the settling flux of biodeposition can be easily and effectively simulated by Fluent fluid software. In the present work, the feasibility of this method was evaluated by simulation of the settling flux of biodeposition in Maniao Bay, Hainan Province, China, and 20 sampling sites were selected for determining the settling fluxes. At sampling sites P1, P2, P3, P4, P5, Z1, Z2, Z3, Z4, A1, A2, A3, A4, B1, B2, C1, C2, C3 and C4, the measured settling fluxes of biodeposition were 26.02, 15.78, 10.77, 58.16, 6.57, 72.17, 12.37, 12.11, 106.64, 150.96, 22.59, 11.41, 18.03, 7.90, 19.23, 7.06, 11.84, 5.19 and 2.57 g d−1 m−2, respectively. The simulated settling fluxes of biodeposition at the corresponding sites were 16.03, 23.98, 8.87, 46.90, 4.52, 104.77, 16.03, 8.35, 180.83, 213.06, 39.10, 17.47, 20.98, 9.78, 23.25, 7.84, 15.90, 6.06 and 1.65gd−1 m−2, respectively. There was a positive correlation between the simulated settling fluxes and measured ones (R = 0.94, P = 2.22×10−9 < 0.05), which implies that the spatial differentiation of biodeposition flux was well simulated. Moreover, the posterior difference ratio of the simulation was 0.38, and the small error probability was 0.94, which means that the simulated results reached an acceptable level from the perspective of relative error. Thus, if nonpoint source pollution is simplified to point source pollution and open waters are simplified based on similarity theory, the setting flux of biodeposition in the open waters can be simply and effectively simulated by the fluid simulation software Fluent.
Similar content being viewed by others
References
Ai, J., Hu, M., Zhai, G, Zhang, X., Wang, Y, Cai, L., et al, 2020. Rapidly developing human heat residue model under various conditions based on Fluent and thermal video. Infrared Physics & Technology, 110: 103468.
Cardenas, M. P., Schwab, D. J., and Eadie, B. J., 2005. Sediment transport model validation in Lake Michigan. Journal of Great Lakes Research, 31 (4): 373–385.
Cen, K., and Fan, J., 1987. The analysis of the forces acting on coal particles and the trajectories in the gas flows. Journal of Zhejiang University, 21 (6): 1–11 (in Chinese with English abstract).
Chen, G., 2007. An experimental research on particles size and concentration based on the light scattering. Master thesis. Xi’an University of Electronic Science and Technology (in Chinese with English abstract).
Chen, G., Li, D., Guo, Y., and Wang, Q., 2011. A simulation study of concentration basin in hydrodynamics with Fluent Software. Research Journal of Chemistry and Environment, 15 (2): 504–509.
Chen, Z., 2018. Hydrodynamics and energy characteristics analysis of the dual-resonance point absorber for wave energy conversion. PhD thesis. Haerbin Engineering University (in Chinese with English abstract).
Choi, A., Lee, T. K., Cho, H., Lee, W., and Hyun, J., 2022. Shifts in benthic bacterial communities associated with farming stages and a microbiological proxy for assessing sulfidic sediment conditions at fish farms. Marine Pollution Bulletin, 178: 113603.
Du, H. T., Hieu, N. M., and Kunzman, A., 2022. Negative effects of fish cages on coral reefs through nutrient enrichment and eutrophication in Nha Trang Bay, Vietnam. Regional Studies in Marine Science, 55: 102639.
Gao, Q., Shin, P. K. S., Xu, W. Z., and Cheung, S. G., 2008. Amelioration of marine farming impact on the benthic environment using artificial reefs as biofilters. Marine Pollution Bulletin, 57 (6–12): 652–661.
Ge, C., and Fang, J., 2006. The fluxes of setting particulate mater in inside and outside of the large aquaculture net cages in sea in summer. China Environmental Science, 26 (Suppl.): 106–109 (in Chinese with English abstract).
Ge, C., Wang, L., Zhang, Y., Qu, C., Liu, X., Zhu, L., et al., 2022. Responses of the macrobenthic community to cage culture in one tropical lagoon in the South China Sea. Ecological Indicators, 140: 108985.
Holmer, M., Duarte, C. M., Heilskov, A., Olesen, B., and Terrados, J., 2003. Biogeochemical conditions in sediments enriched by organic matter from net-pen fish farms in the Bolinao area, Philippines. Marine Pollution Bulletin, 46 (11): 1470–1479.
Huang, S., Pu, J., Li, J., Zhang, T., Cao, J., and Pan, M., 2020. Sources, variations, and flux of settling particulate organic matter in a subtropical karst reservoir in Southwest China. Journal of Hydrology, 586: 124882.
Jiang, H., Ji, Y., and Zhang, M., 2023. Modeling impact of culture facilities on hydrodynamics and solute transport in marine aquaculture waters of North Yellow Sea. Water Science and Engineering, 16 (1): 26–35, DOI: https://doi.org/10.1016/j.wse.2022.10.005.
Jiang, W., Wei, J., and Xu, X., 2018. Analysis of structure of flow field in tunneling road based on similarity theory. China Safety Science Journal, 28 (8): 142–148 (in Chinese with English abstract).
Jiang, Z., 1993. Study on similar theory of gas-solid phase flow in ventilation and dust removal. Coal Engineer, 4 (42): 12–15 (in Chinese).
Kim, G., 2019. Posterior consistency in frailty models and simulation studies to test the presence of random effects. Journal of the Korean Statistical Society, 48 (1): 146–168.
Lapenkov, A., Guzeva, A., Zaripova, K., and Slukovskii, Z., 2023. The seasonal dynamics of geochemical characteristics of sedidiments in the impact zone of the fish farm (Lake Ladoga, Russia). Aquaculture and Fisheries, 8 (6): 654–660.
Liu, C., and Chen, C., 2009. Biology and breeding techniques of Trachinotus ovatus. Shandong Fisheries, 26 (6): 32–33 (in Chinese with English abstract).
Liu, H., and Chen, Y., 2011. Taylor Kriging metamodeling for stochastic simulation interpolation. International Journal of Operations Research and Information Systems, 2 (1): 82–95.
Liu, H., and Liu, J., 2016. Hydrodynamics. China Architecture & Building Press, Beijing, 321pp (in Chinese).
Liu, Y., and Cheng, L., 1992. The hydraulic turbine equation and its similarity in the solid-liquid two-phase flow. Journal of Hydrodynamics, 7 (3): 343–349 (in Chinese with English abstract).
Moriyama, T., and Ohtani, H., 2009. Risk assessment tools incorporating human error probabilities in the Japanese small-sized establishment. Safety Science, 47 (10): 1379–1397.
Song, C., 2022. Numerical simulation and experiment on CFD in industrial aquaculture pond. Master thesis. Jiangsu University (in Chinese with English abstract).
Tsustumi, H., Srithongouthal, S., Inoue, A., Sato, A., and Hama, D., 2006. Seasonal fluctuations in the flux of particulate organic matter discharged from net pens for fish farming. Fisheries Science, 72: 119–127.
Wang, A., Ye, X., Xu, X., Yin, X., and Xu, Y, 2018. Settling flux and origin of particulate organic carbon in a macro-tidal semi-enclosed embayment: Luoyuan Bay, Southeast China coast. Estuarine, Coastal and Shelf Science, 206: 38–48.
Wang, X., Zhang, W., Huang, Y., and Li, S., 2004. Modeling and simulation of point-non-point source effluent trading in Taihu Lake area: Perspective of non-point sources control in China. Science of the Total Environment, 325 (1–3): 39–50.
Wang, Z., Bai, Y., He, X., Tao, B., Li, T., Chen, X., et al., 2021. Estimating particulate organic carbon flux in a highly dynamic estuary using satellite data and numerical modeling. Remote Sensing of Environment, 252: 112116.
Wei, X., 2001. Principle and Application of Similar Methods. Lanzhou University Press, Lanzhou, 199pp (in Chinese).
Weise, A. M., Cromey, C. J., Callier, M. D., Archambault, P., Chamberlain, J., and McKindsey, C., 2009. Shellfish-DEPO-MOD: Modelling the biodeposition from suspended shellfish aquaculture and assessing benthic effects. Aquaculture, 288 (3–4): 239–253.
Yang, J., 2005. Similarity Theory and Structural Model Tests. Wuhan University of Technology Press, Wuhan, 355pp (in Chinese).
Zeng, Y., Wang, H. B., Sun, M. B., Wang, C., and Liu, X., 2023. SST turbulence model improvements: Review. Acta Aeronautica et Astronautica Sinica, 44 (9): 98–129 (in Chinese with English abstract).
Zhang, X., Zhao, Y., Du, Y., Lan, Q., and Li, Y., 2022. GDP forecast of Pingdingshan based on background value optimization GM(1,1). Journal of Henan University of Urban Construction, 31 (3): 87–92 (in Chinese with English abstract).
Zheng, Q. Y., and Lu, Z. Q., 1980. Hydrodynamics. China Machine Press, Beijing, 414pp (in Chinese).
Zhou, M., 1997. Modelling principles of similar systems and feasibility analysis. Journal of Systems Science and Systems Engineering, 6 (4): 439–443.
Acknowledgements
The authors are grateful to financial support from the National Key Research and Development Program of China (No. 2018YFD0900704), and the National Natural Science Foundation of China (No. 31972796).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Liu, Y., Chen, Y. & Ge, C. Numerical Simulation of the Settling Flux of Biodeposition in a Bay with Cage Culture Through Similarity Theory and a Simplified Pollution Source. J. Ocean Univ. China 23, 247–254 (2024). https://doi.org/10.1007/s11802-023-5696-0
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11802-023-5696-0