Calculating Method for rotary blade loss of axial fan is given. Calculations on the lossing and routine lossing models are carried out by the use of 20 groups of fan test data.
给出了一种计算轴流通风机动叶损失的方法,并用20组风机试验数据对该损失模型和常规损失模型分别进行了计算。
This is the same 'razor/razor blade' business model successfully employed in the videogame console business, where the hardware is sold at a loss and profits are made on sales of content.
这与游戏主机行业成功采用的‘剃须刀/剃须刀片’商业模式别无二致,硬件亏本出售,通过内容的销售谋利。
Then the Outside Diameter of the blade is again measured very exactly, to determine Diameter Loss.
再次精确测量刀片的外径长度,以测定外径的降低。
It has been found that wake loss of the blade has a great impact on the performance and stability of Turbomachinery, and also has been recognized as one of main noise sources of Turbomachinery.
尾迹损失对叶轮机械的工作效率和运行稳定性有很大影响,也是叶轮机械主要的噪声源之一。
Compared with conventional blade, the passage vortex structure is more stable in cascade with aft-loaded blade which secondary loss is small.
与常规叶片相比,二次流损失较小的后部加载叮型所构成的叶栅内的通道涡在结构上较为稳定。
Finally, an important combination parameter was put forward to reflect the overall influence of blade loading and tip clearance distribution on the tip leakage mixing loss.
最后提出一个重要的组合参数,反映了叶片尖部载荷和叶尖间隙的流向分布对叶尖泄漏掺混损失的综合影响。
Finally, the total loss distribution along the blade span of the axial flow compressor is estimated according to an improved end wall loss model and a shock loss model.
再应用改进了的端壁损失和激波损失模型,最终算出轴流压气机设计点损失沿叶高的分布规律。
It is proved that the profile loss can be decreased with the use of advanced blade through the comparison of loss coefficient of blade surface overall pressure.
通过叶片表面总压损失系数,证实了先进叶型在流动中可以降低叶型损失。
T he total loss in the compound leaned nozzle blade compared to the original designed straight diffluent blade is decreased by 32.3%?
优化设计弯曲叶片总损失比原设计直叶分流叶栅总损失下降幅度为32.3%。
The relative position between the diffusion blade and the volute tongue has influence on the distribution of diffuser flow field and the position is regulated suitably to reduce the hydraulic loss.
扩压叶片与隔舌相对位置对扩散段流场的分布有影响,适当调整可以减小水力损失。
And the results showed that the performance of the diffuser with splitter blade was improved. The pressure recovery coefficient was (increased) and the aerodynamic loss coefficient was decreased.
同时比较了大小叶片设计方案与全为大叶片方案的性能,发现采用大小叶片可提高静压恢复系数,降低空气动力损失。
Wet steam flows within steam turbine leads to two major problems, loss in turbine stage efficiency and blade erosion.
蒸汽透平中的湿蒸汽流动降低了级运行效率,同时也造成了叶片可靠性下降。
The boundary layer thickness of the forward skewed rotor decreases in the top of blade due to reduction of the secondary flow loss. This fact conforms with experimental investigation.
得出了叶片周向前弯后, 叶顶部分的附面层减薄,二次流损失减小的结论,与实验结果吻合;
Thus, the aerodynamic performance of stage is im-proved obviously, the profile loss decreases through using the "after loading" blade.
优化的“后部加载”叶型明显提高了气动性能,降低了叶型能量损失。
It has been experimentally investigated the effects of drop-shaped pin fins on heat transfer and pressure loss for the blade trailing of turbomachinery.
对滴形扰流柱对透平机械尾部换热及阻力的影响进行了实验研究,讨论了柱体形状及排列方式的影响。
The most affected was secondary flow losses for the energy loss distribution along the blade height, other losses along the distribution was average.
对于能量损失沿叶高分布影响最大的是二次流损失,其他损失沿叶高分布相对比较平均。
Compared with the solidity, the influence of tip loss on five-blade is bigger than three-blade for this model.
对本文模型而言,与实度相比较,叶尖损失对五叶片风轮的影响要大于三叶片风轮。
Dynamic optimized structure of blade and improved surface quality were studied to prevent the loss corner faults effectively.
通过叶片结构动态优化、叶片表面质量改进有效地预防了叶片掉角故障。
This blade can be used to produce counter pressure gradient at cascade passage end, reduce secondary flow loss, increase the efficiency of IP casing consequently, and improve the heat rate of units.
本文讨论了透平叶栅中的二次流产生的机理,并深入探讨了一种减少二次流损失的有效方法---叶片斜置和复合斜置技术,分析研究它对叶栅气动性能和级特性的影响。
There are flow separations at the front blade of bulge tip clearance. The high speed area of groove tip clearance increases the secondary flow loss dramatically.
凸型间隙在叶片前缘引起了流动分离,凹型间隙存在一高速区,增加了二次流损失。
Although the electrodes are installed along the whole blade height, the plasma merely reduces the losses in the region above 10% blade height, and the loss reduction is almost the same in this zone.
虽然电极沿整个叶高方向布置,但等离子体仅对约10%叶高以上的损失影响较为明显,同一电压下该范围内各叶高处的损失减小量也基本相同。
The influence of axial distance between two blade rows on the loss and the whole flow flied is analysed. Both calcula…
通过分析双叶排的轴向间距对损失及整个流场结构的影响,解释了静叶排加入对旋转失速发生所起的抑制作用。
Their loss performance, exit flow angle, exit flow velocity as well as the flow velocity distribution on the blade-profile surfaces obtained in both cases are analyzed comparatively.
本文对试验的损失特性、出气角特性、速度特性、叶型表面速度分布特性等作了对比分析。
Their loss performance, exit flow Angle, exit flow velocity as well as the flow velocity distribution on the blade-profile surfaces obtained in both cases are analyzed comparatively. It is proven t...
本文对试验的损失特性、出气角特性、速度特性、叶型表面速度分布特性等作了对比分析。
Their loss performance, exit flow Angle, exit flow velocity as well as the flow velocity distribution on the blade-profile surfaces obtained in both cases are analyzed comparatively. It is proven t...
本文对试验的损失特性、出气角特性、速度特性、叶型表面速度分布特性等作了对比分析。
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