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轴线速度
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  axial velocity
     Under the confining pressure, axial velocity of water jet velocity decreases exponentially with time because of the existence of attenuation coefficient ' , and attenuation coefficient is caused by the resistance of environmental medium between nozzle and material under confining pressure.
     围压环境条件下,由于衰减系数ξ的存在,使得射流在围压环境条件下的轴线速度呈指数衰减,而衰减系数ξ是由围压下环境介质对射流的阻力引起的。
短句来源
     In this paper the velocity distribution in the cross section and the axial velocity variation of vertical jet flow in statical and uniform enviroment were studied by means of experiment.
     本文根据实测的实验资料,论述了静止均匀环境中淹没铅直射流的横断面流速分布及其轴线速度的变化规律。
短句来源
     The results show that along the axial direction there is a peak value before the decrease of particle axial velocity and the axial relative concentration declines sharply at first and then declines slowly.
     结果表明,颗粒轴线速度衰减存在一个峰值而轴线相对浓度在起始段急剧衰减然后趋于平缓;
短句来源
  “轴线速度”译为未确定词的双语例句
     THE STUDY OF VELOCITY DECAY ON AXIS OF COAXIAL CROSS JETS WITH DUAL PDA
     应用Dual PDA研究同轴交叉射流轴线速度衰减
短句来源
     As the results research display that,the fators affected the impinging efficiency include the inlet-velocity,impinging angle,nozzle spacing(S/D), impinging height(H/D),etc.
     对单股冲击射流,重点分析了射流入口速度v、无量纲冲击高度(H/D)对轴线速度的影响以及射流入口速度v、无量纲冲击高度(H/D)、入射角度θ对壁面冲击压力的影响,得到冲击高度H/D≌4~8时冲击效果较好;
短句来源
     Performance test results showed that newly developed floss silk machines CS02 has some special features,such as roller's line speed 23.4 meters per second(m/s),line speed of the feeder toothed-wheel shaft 0.016 8 m/s,and a production capacity of 7~7.5 kg/h kilograms per hour,which is 2.26~2.34 times of the same type of machines in China;
     这种新型干丝绵机的性能测试结果表明 :丝绵机锡林针滚线速度 2 3 4m/s,进料齿轮轴线速度 0 0 16 8m/s,单台生产率 7~ 7 5kg/h ,是国内同类机型台时产量的 2 2 6~ 2 34倍 ;
短句来源
     Axial Velocity of Coaxial Cross Jets
     同轴交叉射流的轴线速度
短句来源
     6. The existence of a log-law in the centreline velocity profile and the variation of the turbulence intensity in the centreline were discussed in detail.
     6.进一步探讨了轴线速度分布中对数定律的存在和轴线上相对湍流强度的变化情况。
短句来源
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  相似匹配句对
     Axial Velocity of Coaxial Cross Jets
     同轴交叉射流的轴线速度
短句来源
     MATCHING SPEED
     匹配的速度
短句来源
     The speed of gravity
     引力的速度
短句来源
     STUDY ON THE CHARACTERISTICS OF VELOCITY DISTRIBUTION ALONG THE CENTERLINE OF A MULTIJET OXYGEN LANCE
     多孔氧枪喷头轴线速度分布特征的研究
短句来源
     Axis Space Sequence——On overall planning and monoblock for the teaching building of Quan Zhou No.11 Middle School
     轴线·空间·序列
短句来源
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  axial velocity
In this case a logarithmic singularity of the axial velocity arises inevitably on the vortex filament.
      
It is shown that structural defects with a topological index of 0 are stable and that the existence of these defects is associated with the axial velocity ua of nematic liquid-crystal flow in the domains.
      
The values of the critical exponent γ are found for the electric field, curvature radius, and the axial velocity at the point tip, and the correlation between them demonstrated.
      
PIV velocity measurements realized in the meridian plans and the plans perpendicular to the jet axis show that rotation distorts the typical top-hat axial velocity profile.
      
The transition of the axial velocity profile from jet-like into wake-like is also observed.
      
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In this paper the velocity distribution in the cross section and the axial velocity variation of vertical jet flow in statical and uniform enviroment were studied by means of experiment. The relations among the length of the core region, the diffusion angle and the froude number and the submerged depth were also studied. Our results were compared with experimental and numerical results, and it shows that our results are reasonable.

本文根据实测的实验资料,论述了静止均匀环境中淹没铅直射流的横断面流速分布及其轴线速度的变化规律。对射流核长度、射流扩散角与出口弗劳德数、淹没水深之间的关系进行了探讨。并将上述成果与国内外的实验、数值计算的成果进行了对比。

In this paper, the Particle-Source-In-Cell model is used to calculate the axisymetric particle-laden jets and the flow in the pipe leading to the nozzle by finite difference method. Eularian method is used to describe the motion of gas while Largrange method is used to describe that of particles. The particle interaction and rotating are negelected. The irregular model for colltion of particles on the wall of the pipe is used. Part of results of the calculation is compared with that of experiments and fits well....

In this paper, the Particle-Source-In-Cell model is used to calculate the axisymetric particle-laden jets and the flow in the pipe leading to the nozzle by finite difference method. Eularian method is used to describe the motion of gas while Largrange method is used to describe that of particles. The particle interaction and rotating are negelected. The irregular model for colltion of particles on the wall of the pipe is used. Part of results of the calculation is compared with that of experiments and fits well. The results of the caculation show that velocity of larger diameter declines slower than that of smaller diameter particle, but the particle of larger diameter diffuses faster than the small one. It alsoe shows that the velocity of heavy density particle has less effect on particle diffusion. The method of the caculation used in this paper could also predict other gas particle two phase flow fields.

本文根据PSI-Cell模型,用差分法计算、分析了喷嘴内的气固两相流动和喷嘴外的自由射流。不计颗粒间的相互作用,粒子自旋、粒子和固壁间的碰撞模型为非规则模型,并将部分计算结果与实验作了比较,吻合良好。计算结果表明在气—固两相射流中,粒径大的粒子其轴线速度比粒径小的衰减得慢,但扩散比后者快,密度大的粒子比密度小的粒子其轴线速度衰减得慢,而密度的变化却对粒子的扩散快慢影响不大。

Discusses the similarity in solutions of air jet, buoyant plume and buoyant jet, and inducts and analyses the available experiment data. Indicates that the velocity and temperature distribution on the jet axis can be described with normalized dimensionless parameters, and derives accordingly the unified formulas.

论述了空气射流、浮力尾流和浮力射流的相同、相异性及解法特点,归纳分析了现有实验资料。研究表明,空气射流、浮力尾流和浮力射流的轴线流速和剩余温度沿程变化规律可用组合的无量纲参数归一化。得到了表征空气射流、浮力尾流和浮力射流轴线速度及温度分布规律的统一公式。

 
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