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- Effect of Drag Reducing Grooved Surface on High-Order Moments in Turbulent Boundary Layer 减阻沟槽表面对湍流边界层高阶矩特性的影响
- Drag reducing grooved surface 减阻沟槽面
- The raised portion of a grooved surface,as on a phonograph record. 槽脊平滑表面凸起的部分，如留声机唱片上的槽脊。
- The raised portion of a grooved surface, as on a phonograph record. 槽脊:平滑表面凸起的部分,如留声机唱片上的槽脊。
- In this paper,the dynamic process of microjet from shocked aluminum with grooved surface is simulated with two-dimension SPH code. 用二维SPH程序模拟了冲击加载下金属铝表面的沟槽状缺陷产生微射流的过程,得到了喷射物的总质量、最大速度和质量速度曲线。
- The latest achievements in study related to DRA's drag reducing mechanism and DRA production at abroad are described in the paper. 概述了国外减阻剂在减阻机理和生产工艺等方面的最新研究成果。研究结果表明,本体聚合可以大大提高减阻聚合物的分子量;
- Drag reducing performances of Cetyltrimethyl Ammonium Chloride (CTAC) drag reducing fluid in two-dimensional channel under different experimental situations were measured. 摘要通过对不同工况下氯化十六烷基三甲基季铵盐(CTAC)减阻流体在二维流道中减阻性能的测定，分析了温度、质量分数、配比变化对流体减阻性能的影响。
- In this paper, we had briefly introduced the classes and reducing mechanisms of drag reducers. The syntheses,applications and developments of drag reducers were also described. 该文简要介绍了减阻剂的分类,减阻原因和目前国内外减阻剂的研制、应用及发展情况。
- Experimental study on Reynolds shear stress in turbulent boundary layers over smooth and drag reduction grooved surface 平板及减阻沟槽表面雷诺切应力的实验研究
- Application test of FLOXS drag reducer in partial section of Gela Oil Product Pipeline has been carried out. 在格拉成品油管道上对局部管段进行了FLOXS减阻剂的应用试验。
- And subsequently the theoretical calculation method for determining the proper location of drag reducer in ERD wells is set up. 进而给出了优化大位移井减阻工具合理安放位置理论计算方法。
- polymeric drag reducing additive 聚合物减阻加添剂
- Further more, the smooth circular groove surface is given based on the sweep theory of the freeform surface and the roll's topological configuration. 在此基础上,根据自由曲面扫描生成原理和环孔轧辊实体间的拓扑结构,生成了光顺的环状孔型工作面。
- Progress in Drag Reducing Surfactant Research 减阻表面活性剂的研究进展
- DSH cement additive with low frictional re-sistance developed is prepared from drag reducer, filtration-reducing agent, stabilizing agent and accelerating agent. DSH低摩阻水泥外加剂由减阻剂、降滤失剂、稳定剂及促凝剂复配而成。
- drag reducing polymer suspension 减阻聚合物悬浮液
- Dave wore drag to the fancy dress party. 戴夫穿着女子服装去参加化装舞会。
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- The surface of the liquid gradually crusted over. 液体表面渐渐地结了一层皮。
