水流扰动对藻类生长影响的数值模拟

Journal of Residuals Science & Technology Pub Date : 2017-01-01 DOI:10.12783/ISSN.1544-8053/14/1/13

Senlin Zhu, Guolu Yang, Jing Lu

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引用次数: 4

摘要

水动力条件对浮游藻类的生长有显著影响。然而，目前的数值模拟很少考虑这一因素。本研究综述了水流扰动对藻类生长速率的影响，并进行了相应的室内实验，以找出藻类生长速率公式中流速因子的最佳形式。将速度因子的一般形式，具有明确的物理意义，整合到水动力与水质模型- ce - quality -W2 (W2)模型中。采用改进的W2模型对明尼苏达河下游(LMR)水质状况进行了模拟。结果表明，LMR中藻类生长的最佳速度约为0.15 m/s，修正后的模型能较好地模拟藻类生长过程。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Numerical Simulation of Flow Disturbance on Algae Growth

Hydrodynamic conditions have significant impact on planktonic algae growth. However, current numerical simulations rarely considered this factor. The impact of flow disturbance on algae growth rate was reviewed in this study, and laboratory experiments were conducted accordingly to find out the optimal form of velocity factor to be used in the formula of algae growth rate. A general form of velocity factor, which has clear physical meaning, was integrated into a hydrodynamic and water quality model—CE-QUAL-W2 (W2) model. The modified W2 model was applied to simulate water quality conditions in the Lower Minnesota River (LMR). Results showed that the optimal velocity for algae growth is about 0.15 m/s in the LMR, and the modified model can satisfactorily simulate algae growth process.

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来源期刊

Journal of Residuals Science & Technology 环境科学-工程：环境

自引率

0.00%

发文量

审稿时长

>36 weeks

期刊介绍： The international Journal of Residuals Science & Technology (JRST) is a blind-refereed quarterly devoted to conscientious analysis and commentary regarding significant environmental sciences-oriented research and technical management of residuals in the environment. The journal provides a forum for scientific investigations addressing contamination within environmental media of air, water, soil, and biota and also offers studies exploring source, fate, transport, and ecological effects of environmental contamination.