轴流
- 与 轴流 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Cable reel motor torque constant tension which has the characteristics When the load increases in the motor output shaft speed will automatically come down, volume Rao assured when cable tension unchanged. Rao nature of this excellent performance closely integrated with the Volume; Cage used motor hysteresis coupling increases in size, functionality, easy installation, the constant tension similar characteristics, we can under the conditions required output torque. They can pull the cable external circumstances, hysteresis coupling protect cables; using torque motor controller to increase frequency hysteresis couplings Surge part because of the cable reel SCR converter using a new technology operation, smoothing adjustments to the motor terminal voltage, thereby ensuring that the output torque of the motor unchanged. so that the cable can smooth the road with the truck
其中力矩电机电缆卷筒具有恒张力的特点,当负载增加时电机的输出轴转速能自动随之降低,保证电缆卷饶时张力不变,这个优越的性能与卷饶性紧密结合;采用笼型电机加磁滞式联轴器具有体积小,功能全,安装维护方便,近似恒张力等特点,既可以根据工况需要输出力矩,又可以在电缆受外力拉住的情况下,通过磁滞式联轴器保护电缆;而采用力矩控制器加变频电机加磁滞式联轴节的电缆卷筒因其调压部分采用可控硅变流新技术,可以平滑地对电机的端电压进行调节,从而保证了力矩随负载的变化而改变,使电缆能平稳的跟大车的行进。
-
In this paper, a modified multi-zone coupling method is presented for simulating the integrated flowfield of annual combustors, the SIMPLE-ENC algorithm is presented to achieve higher accuracy, and the wall function method in arbitrary curvilinear coordinates for treating near wall region is given here.
针对燃烧室多连通域的特点,本文采用分区法生成网格,并且提出了一种即时传递信息的改进多区域耦合法求解燃烧室整体流场,该法已成功地应用于涡扇和涡轴发动机环形燃烧室整体流场计算;本文提出了计算流场的SIMPLE-ENC算法,显著提高了流场计算的收敛速度;本文详细描述了壁面函数在空间任意曲壁上的应用方法。
-
Firstly, triaxial compression creep tests with mica-quartzose schist which is a kind of soft metamorphic rock with lots of schistosity surfaces were carried out on the rock servo-controlling rheology testing machine under the condition of the axial stress vertical to the direction of the schistosity surface.
首先,对片理发育的软弱变质岩—云母石英片岩,在轴向力与片理垂直的条件下,采用岩石全自动流变伺服仪进行了三轴压缩蠕变试验,对轴向蠕变和径向蠕变进行了对比分析,提出径向蠕变比轴向蠕变敏感,以径向蠕变长期强度作为长期强度更合理。
-
It simulation results proves that when the inner pipes in the concentric annulus pipes stand still, the turbulent flow nucleus area approaches inner pipes; and when inner pipes circumvolve, the turbulent flow nucleus area approaches outer pipes. The shearing velocity near the inner pipes is the biggest, and the shearing velocity increases with the velocity of the inner pipes increasing.
模拟结果表明:在同心环空管道中当内管静止时,紊流核心区即轴向速度最大值区域靠近内管壁;当内管旋转时,紊流核心区即轴向速度最大值区域靠近外管壁;靠近内管壁处的切向速度最大,且随着内管转速的增加切向速度增大。
-
Performance prediction of the pump when transporting water and salt solution is also studied.Results are compared and analyzed with experimental data.6.The salt-out flow field is measured on three dimensions by Particle Image Velocimemter via radial and axial two test models.After image processing, velocity distribution of crystal particles in the pump is obtained.Particle flow field is visualized to reveal the particle motion law intuitionally.
此外对泵送清水和盐溶液时的性能也进行了预测,并将结果与外特性试验数据对比。6、运用PIV在径向和轴向两种测量模式下对泵内不同外部条件下盐析两相流场进行了准三维测量,经图像后处理,获得了盐析晶体颗粒在叶轮内、无叶腔中及轴面上的速度矢量分布,实现了颗粒流场的可视化,更为直观地揭示了泵内盐析颗粒的运动规律。
-
82 Times as high as the flow rate at the inlet; the velocity profile in the lower region is relatively uniform, and changes at the exit from a parabolic shape towards a plug flow as Re increases; The strong circulating flow in the upper region is very favourable to evaporization of heated fluid because it not only forces all the heated fluid to flow through the liquid surface and, therefore, to evaporate effectively, but also causes a large part of fluid to recirculate to the liquid surface and, therefore, to get a second opportunity of evaporization. In addition, the uniform velocity profile in the lower region is also favourable to crystallizing process.
轴向进料蒸发室进口管侧上方有强烈的循环流存在,循环流流量为进口流量的1.48~1.82倍;循环流下部流速分布较均匀,出口区流速在低Re时为抛物线分布,高Re时接近活塞流;强烈循环流的存在不仅迫使加热流体全部流经液面及其附近进行充分蒸发,而且之后还使相当部分流体再次循环回到液面及附近进行二次蒸发,对蒸发操作十分有利;蒸发室下部流速的均匀分布亦有利于蒸发结晶过程。
-
Methods 160 reverse flow axial flaps were used to repair the defects of eyelid, nose,chin,lip,neck,vagina,and penis,including retroauricular flap based on superficial temporal artery,auricular composite flap based on supraorbital vessels,neck-submandibular flaps based on contralateral side mental artery,nape-scapulo-dorsal flap based on transverse cervical artery,and medial ...
方法随机选择160例近22年来应用较广的5种动脉跨区供血反流轴型皮瓣,即:颞浅血管为蒂的乳突区皮瓣、眶上血管为蒂的岛状耳廓复合组织瓣、颏下动脉蒂的对侧颏颈皮瓣、颈横动脉供血的项肩背皮瓣、会阴动脉供血的股内侧皮瓣,考查其完全成活率、部分成活率、完全坏死率、动脉缺血发生率、动脉缺血致皮瓣坏死率、静脉淤血发生率、静脉淤血致皮瓣坏死率等指标,并与我院同期内应用的常规顺流轴型皮瓣随机样本120例进行比较。
-
Up till now, the main pump types used in CPB are roller pump and centrifugal pump, but these two kinds of pump both have their own disadvantages. When roller pump is used, the blood cells will be destroyed severely and when the pipeline is kinked, air will be transported into body or the conduit will be broken. The function of centrifugal pump is better than that of roller pump, but now, this kind of pumps are all designed for adults, and when the flow rate is low, the function of protecting the blood is not significant.
目前,滚轴泵和离心泵是心肺转流中的常用泵型,但是滚轴泵对血液有形成分的破坏较严重,而且有引起泵管的崩脱和大量气体泵入体内的危险性;离心泵虽然在性能上优于滚轴泵,但目前的离心泵大都是为成人设计的,而且在低流量时在血液破坏方面的优点不明显,此外它们还有一个共同的缺点就是预充量均大,因此两者都不适合在幼婴儿体外循环中应用。
-
This paper describes and compares 4 streamtube models (single-disk single-streamtube, double-disk single-streamtube, single-disk multi-streamtube and double-disk multi-streamtube models) based on the momentum theory for the hydrodynamic performance prediction of the vertical-axis variable-pitch turbine that may be employed to tap tidal stream energy resources, especially for the prediction of the overall turbine power coefficient.
以潮流发电水轮机的设计为研究背景,分析和总结了基于动量定理方法的四种流管模型(单盘面-单流管模型、双盘面-单流管模型、单盘面-多流管模型和双盘面-多流管模型)在竖轴变攻角水轮机的水动力性能计算中的应用,特别是能量利用率预报方面的应用。
-
The research result cannot satisfy the need of engineering design.In this paper, according to practical liquid differential equation ,allowing for moving rule and characteristic of moving field of vertical vortex , simplifying N-S equation, I have studied the discipline of condition, velocity and pressure of vertical vortex and analyzed some theory solutions such as plain vortex solution and solution in axial direction.
本文从实际流体运动微分方程出发,结合立轴旋涡运动规律和流场特征,采用对称恒定性假设,简化N—S方程,研究了立轴旋涡的水流流态、速度与压力的分布规律,分析了若干理论解,如平面螺旋流解、轴向流解等。
- 推荐网络例句
-
But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
-
Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
-
Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。