Mixing behavior equations created by a buoyant jet in wavy crossflow environments
Mixing behavior equations created by a buoyant jet in wavy crossflow environments
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波浪横流环境中浮力射流的混合行为方程
DOI：
10.1063/5.0178992
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发表时间：
2024-02
影响因子：
4.6
通讯作者：
Shuqiao Fang;Yongping Chen;Weiyong Shi;Zhenshan Xu;Xin Zhou;Xuefeng Xu
中科院分区：
文献类型：
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作者：
Shuqiao Fang;Yongping Chen;Weiyong Shi;Zhenshan Xu;Xin Zhou;Xuefeng Xu
在海岸动力环境中，对水下污水排放在浮力射流中的混合行为的理解仍然不全面。本研究利用量纲分析与积分模式探讨波浪横流环境中浮力射流之混合行为。我们研究的物理机制的浮力射流的线性隆起，并建立三个半经验方程有关的垂直位置的横截面最小稀释，横截面最小稀释，和可见的扩散面积。这些方程量化了波浪和浮力对波浪横流环境中浮力污水排放混合行为的影响。量纲分析表明，所提出的混合行为方程与浮力特征长度尺度密切相关。我们验证了这些方程的可靠性与现有的非浮力射流在波浪横流环境。此外，本研究扩展了浮力射流方程的应用，通过比较它们与涉及浮力射流在波浪横流环境中的情况下的数据来评估它们的适用性。这项研究突出了波高和浮力对污水排放的初始稀释的积极影响。未来的研究可以实现我们的半经验方程的近区和远区耦合模拟的废水和热排放。
The understanding of mixing behaviors of submerged effluent discharge in buoyant jet flows within coastal dynamic environments remains incomprehensive. This study explores the mixing behaviors of buoyant jets in wavy crossflow environments by utilizing dimensional analysis and an integral model. We examine physical mechanisms underlying the linear uplift of buoyant jets and establish three semi-empirical equations pertaining to the vertical location of the cross-sectional minimum dilution, cross-sectional minimum dilution, and visible diffusion area. These equations quantify the influence of waves and buoyancy on the mixing behaviors of buoyant effluent discharge in wavy crossflow environments. The dimensional analysis demonstrates that the proposed mixing behavior equations are closely related to the buoyant characteristic length scale. We validate the reliability of these equations with that of existing ones for non-buoyant jets in wavy crossflow environments. Furthermore, this study extends the application of buoyant jet equations, evaluating their suitability by comparing them with data from cases involving buoyant jets in wavy crossflow environments. This study highlights the positive effect of wave height and buoyancy on the initial dilution of effluent discharge. Future studies can implement our semi-empirical equations on the near and far zone coupling simulations of wastewater and thermal discharges.