不同流变性质的表面活性剂湍流减阻的直接数值模拟研究  

DIRECT NUMERICAL SIMULATION ON THE DRAG-REDUCING FLOW BY SURFACTANT ADDITIVES AT VARIOUS RHEOLOGICAL PROPERTIES

作　　者：宇波[1] 王艺[1] 侯磊[1] 张劲军[1] 

机构地区：[1]中国石油大学(北京)城市油气输配技术北京市重点实验室,北京102249

出　　处：《工程热物理学报》2007年第3期469-471,共3页Journal of Engineering Thermophysics

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

摘　　要：采用直接数值模拟方法研究了不同流变性质的表面活性剂湍流减阻流动的规律。数值计算方法为有限差分法,时间项采用Adams-Bashforth格式,空间项采用二阶有界格式。讨论了粘弹性能与减阻率的关系。Direct numerical simulations were performed on the drag-reducing flow by surfactant additives at various rheological properties. The numerical method was a finite difference scheme. The unsteady term was discretised by Adams-Bashforth scheme and the spatial terms were discretised by a second-order bounded scheme. The relationship between the viscoelastic energy and the drag-reduction rate was discussed.

关 键 词：表面活性剂 直接数值模拟 减阻 流变参数 

分 类 号：TK01[动力工程及工程热物理]