The MHD control of drag reduction in pipe flow is studied through DNS. 利用直接數值模擬研究了圓管湍流減阻的電磁力控制問(wèn)題。
And subsequently the theoretical calculation method for determining the proper location of drag reducer in ERD wells is set up. 進(jìn)而給出了優(yōu)化大位移井減阻工具合理安放位置理論計算方法。