摘要
本文建立了适体坐标系下的河流三维复氧数学模型。流场求解采用SIMPLEC算法,浓度场的计算采用"非耦合解"算法。用该模型对明槽复氧试验资料进行了计算对比,结果吻合良好。并对一"S"形河段的复氧进行了计算预测,定性上是合理的。
A three-dimensional numerical model is developed to simulate reaeration in rivers using a body-fitted coordinate system .The velocity and oxygen concentration are calculated separately in the model, which is called 'no pairing resolution'.The velocity is calculated by SIMPLEC algorithm in the body-fitted coordinate system .The present model is applied to the reaeration experiment in an open channel.The computed results agree with the previous experimental values .The model is also used to predict the reaeration in a 'S'-shaped channel, and the numerical results are reasonable.
出处
《水利与建筑工程学报》
2003年第4期24-27,共4页
Journal of Water Resources and Architectural Engineering
基金
后勤工程学院青年基金项目(42412154)
关键词
河流
复氧
数值模拟
紊流模型
浓度场
reaeration
turbulent model
numerical simulation
concentration field
