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|  | | 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。 | |
The velocity distribution at the outlet of the electric supercharger is determined by hot-wire anemometry under various rotation speeds in steady state.
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The calculation method, and the proposed pressure and velocity distribution of the flow field, have practical significance for the design and improvement of a hydrodynamic torque converter.
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All these correspond to the different patterns of flow velocity distribution.
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The characteristics of the flow, such as pressure drop, air velocity distribution, slug length and settled layer thickness, and the detailed changing characteristics of slug length and settled layer thickness with air velocity were obtained.
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Laminar boundary layer in an equilibrium dissociated gas for arbitrary external velocity distribution
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All these correspond to the different patterns of flow velocity distribution.
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Flow velocity distribution in the initial and steady state regions is derived for laminar flow.
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A calculation method for blood flow velocity distribution in smallep elocd vessels
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Although Doppler ultrasonography is still most widely used, no information on the flow rate and the flow velocity distribution in the basilar artery can be provided.
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MR flow measurement techniques appear promising when detailed information on the flow velocity distribution and flow rate is needed.
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The study of these strokes relies on the extraction of the different parameters that characterize a stroke velocity profile.
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The first effect refers to a transition from strongly non-Newtonian to Newtonian flow velocity profile while increasing in the absolute flow velocity.
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In the theoretical study of this phenomenon, all the investigators known to the present authors have taken into account only the increase in the fullness of the velocity profile in the boundary layer with suction.
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Since the development of this sort of disturbance depends only weakly on the form of the velocity profile in the boundary layer, a marked change of the viscosity had little effect on the critical Reynolds number.
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In form this profile is very similar to the averaged velocity profile of turbulent flow in a two-dimensional pipe.
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Probability distribution of velocity difference in the inertial interval of a turbulence spectrum
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The results are given of an experimental investigation of the distribution of velocity components in a flow of air in the vicinity of a hemispherical permeable blunting of a cylindrical body under conditions of low injection intensity.
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These condensations are the sources of waves which form a distribution of velocity fluctuations in the gas flow over a wide range of amplitudes, frequencies and directions.
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The calculation result shows that the distribution of velocity near burner exit is saddle-like; recirculation zones near nozzle and wall are useful for mixture primary air with coal and high temperature fume.
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The distribution of velocity and temperature in regenerative reheating furnace with same-side-switching combustion mode cannot satisfy the even and fast heating process.
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| | ~~ | | 文内研究了河流紊动结构,论述了确定脉动流速的基本因素,得到了表示纵竖向脉动流速沿竖直线分布的公式,并进而确定了紊流虚黏性系数的结构式。在这一基础上对无沙水流与挟沙水流的流速分布以及光滑管道中的流速分布,分别作了阐述,并给出了与实测数据符合的计算公式。 | | 文摘来源 | | The general equations of motion,mass conservation,continuity and energy are de- rived for the aerated turbulent water flow.The equations appear in the paper as Eqs.(6),(7),(8)and(12),where c denotes the air concentration and a_i the rise velo- city of air bubbles.Equation(6)differs significantly from the Reynolds equation by the appearance of the additional turbulent concentration stress The two-dimensional aerated steady uniform open channel flow is studied in detail, for which the stress equation(16)is f... | | 本文给出了掺气水流的运动、连续、质量平衡、动量及能量诸基本方程式.考虑了在运动方程式中出现的浓度紊动应力项的重要意义,应用普兰特紊流的混合长度理论,对二元明渠掺气均匀水流的流速分布公式进行了推导.在邻近渠底部分,紊动受底边界约束,混合长度与对底距离成正比,流速分布与通常均质紊流相似,为对数曲线.在邻近水面的部分,紊动自由,混合长度为常值,流速分布为直线的.二分布式均与已有的试验结果符合.文中还继续根据分布式给出了谢才系数依据水流倾角、雷诺数、断面平均掺气浓度及渠底掺气浓度而变的表示式. | | 文摘来源 | | The results of three sets of flume studies given in reference [1] were reanalyzed, indicating that the existence of sediment concentration gradient manifests its effects on the following respects: (1) Within the zone near the bed where a distinct sediment concentration gradient exists, the velocity distribution can be described by the following formula: in which both α' and β are functions of The parameter E is nothing else but an average Richardson number along the vertical. (2) In the main flow zone where... | | 本文根据三组水槽试验资料,初步探讨了近底高含沙量流层对流速分布、紊动特性等的影响,以及在此条件下的含沙量分布规律.近底高含沙量流层的存在,改变了时均流速的分布.在主流区实测范围內,流速分布继续遵循对数定律,但公式中的卡门常数减小,亦即流速分布趋于不均匀.在近底流区內具有明显的密度梯度,其流速分布可用式(13)来描述.挟沙水流中的含沙量梯度有使紊动減弱的作用.在高含沙量条件下,含沙量沿垂线分布具有公式(29)的形式. | | 文摘来源 | | | | << 更多相关文摘 |
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流速分布
velocity distribution
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