粘弹性减阻流动的雷诺应力模型研究

工程热物理学报 , 2009, 30(4): 611-614.

粘弹性减阻流动的雷诺应力模型研究

王艺 ^1, , 宇波 ^2, , 张劲军 ^3, , 魏进家 ^4, , 张红娜 ^5, , 李凤臣 ^6, , 川口靖夫 ^7, , 窦丹 ^8,

1.中国石油大学石油天然气工程学院,城市油气输配技术北京市重点实验室,北京,102249

2.中国石油大学石油天然气工程学院,城市油气输配技术北京市重点实验室,北京,102249

3.中国石油大学石油天然气工程学院,城市油气输配技术北京市重点实验室,北京,102249

4.西安交通大学能源与动力工程学院,陕西,西安,710049

5.哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001

6.哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001

7.东京理科大学机械工程系,日本,千叶县,2788510

8.中国石油天然气勘探开发公司,北京,100034

基金项目: 教育部科学技术研究重点项目(106034) 高等学校博士学科点专项科研基金(20050425006) 国家自然科学基金(50876114;No.50506017;10602043)

关键词：雷诺应力模型 , 湍流模型 , 减阻 , 粘弹性

STUDY ON THE REYNOLDS STRESS MODELE FOR DRAG REDUCING VISCOELASTIC FLOWS

针对由Giesekus本构方程描述的粘弹性槽道减阻流动,建立了低Re数雷诺应力模型.通过与DNS数据的比较,该模型对平均速度、平均变形、减阻率和应力的预测较准确,而对时均速度剖面和脉动速度强度的预测精度有待提高.另外,对雷诺应力再分配项(压强变形率相关项)的模化有待改进.

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