泥浆 mud(1472)   mud     Effects of Bed Load Motion on Turbulence Structure of Water Flow and Bingham Mud Flow     推移质运动对清水和宾汉体泥浆湍流结构的影响 短句来源     USING BP ARTIFICIAL NEURAL NETWORK FOR INTERPRETING MUD LOGGING GAS DATA     BP网络用于解释泥浆气测数据 短句来源     Mud invasion causes decrement of both count rates,and the near one varies faster than the far one,but the gamma count rate will be changeless when the depth of invasion reaches 12 cm.     泥浆侵入使远近探测器的伽马计数减小,且近探测器变化快,侵入深度达到12 cm后伽马计数率几乎不发生变化。 短句来源     Logging Application of Mud Invasion Characteristics.     泥浆侵入特性的测井应用 短句来源     Mud on Transshipment Management of Qiantang River     论钱塘江泥浆转运管理 短句来源 更多          “泥浆”译为未确定词的双语例句     Turbulent structure of Bingham fluid in open channel Flow     宾汉体泥浆湍流的结构特征 短句来源     Experience Correction for KCl-mud Effect on Spectrum Logging     KCl泥浆对能谱测井影响的经验校正 短句来源     Influence of drilling fluid on well logging responses.     钻井泥浆对测井的影响 短句来源     LOGGING EVALUATION MECHANISM OF RESERVOIR POLLUTION LEVEL BY DRILLING FLUID     钻井泥浆污染储层程度的测井评价方法研究 短句来源     The variation law of flow resistance related to the Reynolds number and sediment concentration as well as the relationship between resistance coefficient and comprehensive sediment factor are deduced.     根据实测管道压力、流量、含沙量等资料进行高含沙水流阻力分析,取得了受雷诺数、含沙量影响的管道泥浆阻力系数变化规律,给出了阻力系数与综合泥浆因子间相关关系。 短句来源 更多        查询“泥浆”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   mud The mud diapirs found in the Baiyun sag indicate that there may be overpressure in the deep-water area. 例句来源       947 billion tons of sediment have been deposited in the river coast to form the Changjiang subaqueous delta and the Zhejiang-Fujian along-shelf mud wedge. 例句来源       The concept of additional mud cake formed by the effect of cushion at the bottom of borehole during pouring concrete is introduced to explain the mechanism of end effect on skin friction of the bored pile. 例句来源       The solid particles of the mud are deposited on the borehole walls, forming a clay crust, and the liquid phase percolates into the permeable bed. 例句来源       In this article we will consider percolation of the drilling mud through the crust. 例句来源       更多                    Based on the analysis of the primary factors affecting the flocculation of cohesive sediment, formulas of limiting settling velocity and equivalent diameter of floc are obtained from the point of view of dynamic equilibrium. A formula of Bingham yield stress of slurry is derived by analysing the relationship between flocculation and rheologic properties of slurry. It is shown that the formulas are consistent with the experimental data.             本文在分析影响絮凝主要因素的基础上,从动态平衡观点出发,获得了絮团极限当量直径和极限沉速公式.此外,还分析了絮凝与泥浆流变特性之间的关系,从而获得了宾汉屈服应力公式.这些公式与实验资料相比,相当吻合. 文摘来源          The head loss along pipeline in hydrotransport was studied through a sets of well arranged experiment.For pseudo-one-phase flow with fully mixed sediment particles, provided a revised Reynold number Re1 including both yield stress τB and rigidity η is adopted, the relationship between Re1 and friction factor λ is the same as that of clear water.For two-phase flow in which all particles are fully suspended by water or mixture of water and fine particles, the head loss is the same as that of pseudo-one-phase ...             本文通过一系列专门安排的试验,研究了管道水力输送中阻力损失的规律. 对于泥沙颗粒均匀分布的伪一相体,如果采用包含浑水流变特性的广义雷诺数Re_1与阻力系数λ建立关系,那么,伪一相体的λ～Re_1关系与清水的阻力关系相同. 对清水或细颗粒泥浆输送粗颗粒的两相流,只要粗颗粒泥沙全部处于悬浮状态(包括均匀悬浮和不均匀悬浮),其阻力规律与伪一相体的阻力关系一致. 粗颗粒泥沙作推移运动时,由于颗粒间以及颗粒与管壁之间的相互碰撞.引起附加阻力损失.本文找出了出现附加阻力的临界条件. 从以上概念出发.可以从理论上推导得出在两种不同条件下,两种典型的阻力曲线(即J～V曲线),并与实测资料取得了一致.由此可以推得水头损失与管径的1～1.5次方成反比(取决于粘性、流速等).从理论上解决了实验结果的比尺大问题. 人们所关心的高含沙水流的减阻作用只有在如下特定条件下发生,即:在存在推移质的两相流中,加入一定量的细颗粒泥沙,会使推移质数量减少,从而引起阻力的减小. 文摘来源          The effect of fine particles on the vertical concentration distribution and transport rate of coarse particles is studied by means of a series of flume experiments. Clay slurry behaves as Bingham fluid. Its yield stress and rigidity rapidly increase with the fine paritcle concentration SF. The increase of viscosity makes coarse particles settle much slower. As a result, the vertical concentration distribution of coarse particles becomes more uniform,but it still obeys the law of diffusion theory with a smal...             本文通过水槽试验,研究了细颗粒(粘土类细颗粒)含量对粗颗粒含沙量分布及挟沙能力的的影响。粘土类泥浆具有宾汉流体的特性,其宾汉切应力及刚度系数随细颗粒含沙量S_F的增大而急剧增大。粘性增大使得粗颗粒在其中的沉速大幅度减小,水流中粗颗粒含沙量沿垂线分布趋于均匀,但仍符合扩散理论,即在双对数纸上呈一直线。根据颗粒在宾汉体中下沉的C_D-Re_1关系可以推求粗颗粒在泥浆中的沉速W。而由实测粗颗粒含沙量的垂线分布也可以反算沉速,两者是一致的。S_F极高时流动呈层流流态,粗颗粒含沙量沿垂线均匀分布。粘土泥浆中粗颗粒沉速的减小也有助于粗颗粒的输送。细颗粒含沙量愈大,同样水流强度条件下粗颗粒的输沙率愈高。如果水流强度参数中的沉速采用C_D-Re_1关系推求,则不同细颗粒含沙量泥浆输送粗颗粒的挟沙能力关系可以统一起来。细颗粒含沙量极高的挟沙能力有待进一步研究。 文摘来源   << 更多相关文摘         相关查询: 钻井泥浆 泥浆护壁 泥浆工艺 聚合物泥浆 耐火泥浆 泥浆录井 泥浆添加剂 泥浆粘度 泥浆振动筛 泥浆钻井 泥浆电解质 粘土泥浆  对查询结果不满意

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