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热污水表面侧排的近区特性
引用本文:范丽丽,沙海飞,杨海燕,逄勇.热污水表面侧排的近区特性[J].江苏大学学报(自然科学版),2007,28(2):151-155.
作者姓名:范丽丽  沙海飞  杨海燕  逄勇
作者单位:1. 河海大学,环境学院,江苏,南京,210098
2. 南京水利科学研究院,江苏,南京,210029
3. 南通水利勘测设计研究院,江苏,南通,226006
摘    要:为了正确预测热污水排放在受纳水域的掺混扩散规律,采用考虑浮力的雷诺应力紊流模型(RSM)对不同排放口长宽比的情况进行了三维紊流数值模拟,应用颗粒成像系统(PIV)和红外热像仪系统测得的热污水表面横向侧排试验流场和温度场作为验证.计算结果和试验结果吻合较好,表明所采用的三维紊流数学模型具有较高的精度.排放口长宽比对热污水表面侧排近区特性有较大的影响,并且扩散宽度和排放口的长宽比具有良好的相关关系.

关 键 词:热污水  雷诺应力模型  排放口长宽比  近区特性  数值模拟
文章编号:1671-7775(2007)02-0151-05
修稿时间:2006年4月21日

Near-field behavior of thermal wastewater from side-discharge
FAN Li-li,SHA Hai-fei,YANG Hai-yan,PANG Yong.Near-field behavior of thermal wastewater from side-discharge[J].Journal of Jiangsu University:Natural Science Edition,2007,28(2):151-155.
Authors:FAN Li-li  SHA Hai-fei  YANG Hai-yan  PANG Yong
Abstract:In order to study the mixing and diffusing patterns of thermal wastewater in receiving waters,the Reynolds Stress Model(RSM)considering buoyant effects was used to simulate the three-dimensional near-field behavior of thermal wastewater.Measured flow and temperature fields using particle image velocimetry(PIV)system and infrared thermal imaging system were used for model validation.The simulated results agree well with the experimental data,indicating that the three-dimensional buoyant model has satisfied precision.The results show that the length-width ratio of discharge outlet has significant effects on the near-field behavior of thermal wastewater,and has good correlation with the diffusion width of thermal wastewater.
Keywords:thermal wastewater  Reynolds Stress Model(RSM)  length-width ratio of discharge outlet  near-field behavior  numerical simulation
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