风扇

A study on the effects of aspect ratio is presented for a transonic fan by numerical method.

摘 要：使用数值模拟方法，对比研究了三个采用不同大小动叶展弦比设计得到的高负荷跨音速风扇的性能。

The numerical results show that the aspect ratios have significant effect on the transonic fan performance.

计算结果表明，动叶展弦比大小对风扇性能影响显著。

Characteristics: Electrode antiseize function Computer automatically delay the unaspirated HF / touch igniting function W-automatic function Xiaoqiu From the Arc / pit filled arc current adjustable Overheating instructions, overload protection, a thermostatically controlled fan, the self-inspection failure Welder software upgrade Technical parameters: Equipped with closed-loop water-cooling system Welding current: 3 - 400 amperes Voltage: 10.1 - 22.0 V

特性： 电极防粘功能电脑自动延缓送气高频/接触引弧功能钨针自动削球功能起弧/填弧坑电流可调过热指示，过载保护，温控风扇，故障自检焊机软件升级技术参数：配备闭环式水冷却系统焊接电流： 3 -- 400安培工作电压： 10.1 -- 22.0 V

Patent, and then the blade-to-blade flow was computed by solving the two-dimensional steady Navier-Stokes equations, finally, overall performance and internal flowfield characterization were obtained and analyzed.2. As to radial matching between blade sections, preliminary investigations were developed from three aspects such as stall margin customizing technique, control technology of tip clearance flow, prediction model and control technology of corner separate.a On basis of reviewing on methods of achieving the goal of stall margin in design process of fan and axial-flow compressor, in conjunction of understandings on "Sweep/Dihedral", stall margin customizing technique was put forward; two-dimensional performance prediction method for stall margin customizing was developed, it can consider influences of radial stacking patterns of blade sections and axial distances between blade rows conveniently and rapidly.b A simple model for tip leakage mixing loss of unshrouded blades for compressible flow was presented.

二、叶片基元展向匹配方面，本研究从影响负荷最大化的叶身展向积迭注：原(来源：ABC论文35网www.abclunwen.com指掠弯是裕度定制的一部分，为方便论述，本文将此统一论述为裕度定制、叶尖间隙、叶片与端壁角区这三个最重要因素出发，探讨了各因素影响负荷最大化的机理，并由此给出了最大负荷设计过程中的技术措施和努力方向。1从掌控风扇/轴流压气机裕度方法回顾入手，探析了美国和俄罗斯裕度控制方法及相应特点，结合对&掠/弯&因素的认识提出了裕度定制技术：并开发了能够体现裕度定制思想的二维特性预估方法，可在二维层面下方便快捷地考虑以掠/弯为代表的叶片基元展向积迭以及叶片排间轴向间距带来的影响；2借鉴Denton关于不可压叶尖泄漏损失的理论分析，推导出适用于可压缩流动的叶尖泄漏掺混损失计算的基本关系式。

You can move it conveniently for its wirelessness.

四 无风扇的设计，使得感染物不因空气的强制流动而传播

The main products are as follows, three different step motors of YS series, the YY series electric capacity operates the asynchronous motor, YC (YC2) serial single-phase electric capacities start the asynchronous motor, the YU series resistance starts the asynchronous motor, asynchronous motor of electric capacity of a pair of value of YL series, three different step motors of Y series, three different step motors of Y2 series, YD series change the asynchronous motor of extremely many speeds, YH series are transfered to three different step motors of difference rate high, the YCJ series gear wheel moderates three different step motors, YEJ series electromagnetic to apply the brake three different step motor, YCT series electromagnetic to transfer speed three different step motor , YVP series frequency conversion transfer speed asynchronous motor , YSF series axle flow fan special-purpose three different step motor, Three different step motors of YZU series vibration source , the electronic device of YDF2 series valve uses three different step motors and YOX series limit distance type hydraulic coincidence device , ZLY spatters and makes such 28 series and more than 1500 specifications as the coil post tooth decelerator ,etc..

主要产品有：YS系列三相异步电动机、YY系列电容运转异步电动机、YC（YC2）系列单相电容起动异步电动机、YU系列电阻起动异步电动机、YL系列双值电容异步电动机、Y系列三相异步电动机、Y2系列三相异步电动机、YD系列变极多速异步电动机、YH系列高转差率三相异步电动机、YCJ系列齿轮减速三相异步电动机、YEJ系列电磁制动三相异步电动机、YCT系列电磁调速三相异步电动机、YVP系列变频调速异步电动机、YSF系列轴流风扇专用三相异步电动机、YZU系列振动源三相异步电动机、YDF2系列阀门电动装置用三相异步电动机和YOX系列限距型液力偶合器、ZLY渐开线圈柱齿减速器等28个系列1500多个规格。

A small fan blowing out of the wind is hot.

小风扇吹出来的风是热的。

It really can spread out like the fan of a peacock's tail.

这真的可以象展开风扇的孔雀的尾巴。

If you are a slots fan, do check out the incredible progressives, but also have a look at some of the Real Series.

如果你是一个插槽风扇，不签出令人难以置信的进步，但也有在真实系列的一些。

Fan appears top be on more of the time than with the M912X we tested. Slightly annoying but seems have a noticeable effect on reducing heat build up.

风扇常常以最大功率运作的时间比M912X更多当本文作者测试时，有点吵，但在解决热累积的问题效果还蛮明显的噪音，热量~你比较不排斥哪一个？

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。