查询词典 kinetic energy

Fourthly, in baffled and unbaffled reactor, the improved ALE (Arbitrary Lagrange-Euler) method is applied to compute and simulate the 3D-flow field of air-water mixture, the velocity and kinetic energy distributions are analyzed and the processes of flow development are simulated, the results are validated with flow visualization experiment.

然后，采用改进的ALE(Arbitrary Lagrange-Euler)方法，对有、无挡板的反应器的气液混合物三维流场进行数值计算和模拟，分析了反应器内的速度和动能分布，模拟了流场的发展过程，并用流场显示实验进行了验证。

The numerical results show that:(1) the throughflow wake is considerably influenced by the tip clearance. The low-kinetic-energy fluid accumulated in the shroud/pressure side of the unshrouded impeller, but in the shroud/suction region for 0.0 tip clearance;(2) there possibly exists an optimum size of the tip-clearance which is not the zero tip clearance to make the flow loss minimized.

研究结果表明，(1)NASA低速大尺度离心压缩机半开式叶轮的低速尾迹区在压力面与轮盖的角区，而相应的闭式叶轮的低速尾迹区聚集在轮盖的中心位置；(2)数值实验表明，叶顶间隙并非越小越好，可能存在一个最优间隙，使得叶轮流动损失最小。

The results of this study indicate that changing the angle of the intake port has a profound effect on the flow field during the intake stroke of the engine cycle. For the case with the intake-exhaust valves canted at zero degree (the so-called vertical valves), the tumble ratio, swirl ratio, turbulent intensity, and turbulent kinetic energy in the direction perpendicular to the bisecting plane of the cylinder are at their highest levels than those obtained for the other cases. This effect is most pronounced after the compression stroke of the cycle. As a result of this study, it is observed that the behavior of the overall flow field from the intake to the completion of compression stroke has a major impact on the effectiveness of the mixing of fuel-air prior to the ignition of the engine cycle.

结果显示，改变进排气阀的倾斜角度对进气期间的流场变化有很明显的影响，其中以垂直阀(进排气阀倾斜0度)所得的 Y轴向(Y方向系垂直於将汽缸对分为二平面的方向)滚流强度、涡漩比、紊流强度、紊流动能等流场强度为最强；若以流体经活塞压缩后的流场特性进行探讨，所得结果显示压缩冲程对汽缸内流场的效应是不容忽视的；因此由进气到压缩过程结束的整体流场现象，才是影响引擎点火前的油气混合程度与燃烧品质的关键。

The quasi-perpendicular collisionless shock consists of foot, ramp and a series of overshoots and undershoots, after travelling back upstream for a short distance, the reflected protons gyrate back into the downstream where an temperature anisotropy is formed due to an anisotropy of velocity distribution, then excite Alfvén ion cyclotron waves and mirror waves that dissipate the kinetic energy into heat; At quasi-parallel collisionless shocks, the reflected protons can travel far upstream, and lead to the generation of ion beam instabilities which excite large-amplitude right-hand polarized ultralow-frequency resonant waves whose frequencies are are about〓 These waves are convected back downstream by solar wind and gradually merge to form the downstream state, in the meantime new waves are generated continuously in the upstream, this process where ULF waves are generated and merge into downstream state is cyclical.

准垂直无碰撞激波系由根部、斜坡区以及一系列的低冲和过插组成，被激波反射的质子向激波上游运动很短的距离就在回旋作用下再次向下游运动，和激波发生相互作用以后进入激波的下游，在激波的下游引起质子速度分布的各向异性，进而引起激波下游温度的各向异性，激发起Alfvén离子回旋波和镜波，将激波上游的动能耗散成激波下游的热能；在准平行无碰撞激波(θ〓＝10°)情况下，这部分质子能向激波上游运动很大一段距离，并在激波的上游激发起束流不稳定性，引起大振幅的低频波动。

Direct storage to spring brake kinetic energy of electric cars and efficient use of the program, up to 90%.

以弹簧直接储存电动车刹车动能的能量利用方案效率高，可达到90%以上。

This results in braking force, and the power recovered from the kinetic energy is fed back to the battery.

这在制动力的结果，收回的权力从动能反馈给电池。

Based on its exact kinematic analysis and by applying the power equation of kinetic energy theorem,its balance analysis is given,and the exact analytical expression for computing crank axle torque is obtained.

在对摆杆型游梁式抽油机进行详细运动分析的基础上，应用动能定理的功率方程对其进行了平衡分析，得到了曲柄输出轴扭矩的解析表达式。

Based on the principle of phase equilibrium of fluid, a new model for calculation of pressure distribution in gas condensate well was established in consideration of the effects between temperature and pressure and the effect lead by the change of kinetic energy. The deviation factor is also considered as a function of temperature and pressure in the model.

在流体相平衡理论基础上，综合考虑压力、温度的相互影响及动能变化的影响，同时將流体偏差係数考虑为压力和温度的函数，建立了新的凝析气井井筒压力分佈计算模型。

In order to analyze the contribution of thermal inhomogeneity to the horizontal advection, the turbulent advections for turbulent kinetic energy are calculated.

计算结果表明，加热开始不久，由于不同下垫面的的温差较大，水平输送也较大；而当一段时间后，温差变小，水平输送也变小了。

There are self-protection spray series, 37mm antiriot series, 38mm antiriot series, 48mm antiriot series, 64mm antiriot series, tear gas grenades, cxplode tear grenades, giddy or flash grenades, kinetic energy grenades, color smoke grenades, anti-riot equipments special for finance system and so on.

包括：系列自卫喷射器；37mm系列防暴弹；38mm系列防暴弹；48mm系列防暴弹；64mm系列防暴弹；燃烧型催泪弹；爆炸型弹药；声光型弹药；动能型弹药；彩色烟幕弹药；金融系统专用防暴器材等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。