| 杨中华,槐文信.流动环境中平面负浮力排放的数值模拟[J].水利学报,2003,34(7): |
| 流动环境中平面负浮力排放的数值模拟 |
| Numerical simulation on near-ield behavior of plane negative buoyant jets in flowing environment |
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| DOI： |
| 中文关键词: 负浮力射流 流动环境 平面倾斜射流 数值模拟 内部结构 |
| 英文关键词: negative buoyant jet flowing environment plane inclined jet numerical simulation demarcation of flow regime |
| 基金项目: |
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| 摘要点击次数: 2282 |
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| 中文摘要: |
| 建立流动环境中平面负浮力倾斜射流的二维k-ε湍流模型，采用D M Shahrahani和J D Ditmars(1976)的试验资料进行检验，并且对平面负浮力倾斜射流流动特性进行了数值预报。给出了射流的分区及分区的界限，同时亦给出了涡心断面的物理量的分布及典型断面上湍动能平衡图。 |
| 英文摘要: |
| The k-ε turbulence model is applied to establish the mathematical model of plane negative buoyant inclined jet in flowing environment.The validity of the model is verified by experimental data. The model is applied to predict the flow characteristics. According to the calculation, the flow field can be divided into three regions:jet region, recirculation and horizontal spreading region.The demarcation of these regions is given and the variation lawof velocity, density and kinetic energy along the eddy center section is demonstrated. |
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