表层排放温水在陡岸型深水中温度层化的测量与模拟Measurement and simulation of temperature stratification of surface-discharged warm water in steep shore deepwater
安贺东,韦兵,朱健,喻国良
摘要(Abstract):
为了研究水体温度分层现象与规律,针对表层排放温水在陡岸型深水中的温度分层现象进行了测量和模拟。首先建立一个表层排放温水在陡岸型深水环境中对流扩散的试验模型,利用温度同步测量系统测量了模型中水体温度场随时间的变化。然后,利用TELEMAC-3D软件建立了一个相应的三维流场与温度场数值模型。根据试验数据对模型进行率定,并开展与试验对应的模拟。结果表明,温度分层后水体从上至下可分为表层同温层、密度跃层和下部滞温层。数值模拟结果与试验结果吻合,所建立的数值模型可作为研究水体温度分层现象和规律的工具。通过分析模拟结果中水体温度分层与理查德森数(Ri)的关系,验证得到判断温度场分层与混合的理查德森数(Ri)临界值为0.25。
关键词(KeyWords): 表层排放温水;陡岸型深水;温度层化;水流;理查德森数
基金项目(Foundation): 国家科技重大专项项目(2017ZX07206)
作者(Author): 安贺东,韦兵,朱健,喻国良
DOI: 10.13928/j.cnki.wrahe.2018.04.015
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