It is shown that laser anemometry, as a non-intrusive anemometer, is more suitable and convenient than traditional instruments in application to rotational flow fields, especially to the flow within centrifugal impellers which have only small width of flow passage.

研究表明，激光測速儀作為一種先進的非接觸式測速儀器在旋轉(zhuǎn)流場特別是流道高度很小的離心旋轉(zhuǎn)流場的研究中較之傳統(tǒng)儀器更合適99超碰在线播放、更方便日韩特黄一区二区。

The calculation and analysis results were instructive to the optimization design of rotational flow self-priming pump.

計算及分析結(jié)果對旋流自吸泵性能優(yōu)化設(shè)計具有一定的參考價值。

To all project practicality, the introduction is given to the operational characteristics, the methods for calculation and the researching actuality of the tail tunnels with sloping ceiling underground hydropower stations the Three Gorges. This paper has discussed in detail the characteristic method being the same with the compressive flow and the Priessmann solution being the same with the free-surface-pressure flow. And how to deal with boundary conditions has been expatiated. Also hydraulic transient process of tremendous load fluctuation in the tail tunnels with sloping ceiling has been numerical simulated and the Fortran program for numerical simulation has been given. The paper gain the maximal press for tail end of the shell, the maximal rising rate of rotational speed of generating set, the maximal vacuum degree for inlet of the tail tunnels and so on under 11 kinds conditions of tremendous load fluctuation. These conditions include the design conditions, the check conditions and the superposition conditions. Finally, the computing results have been analyzed and summarized. The end chapter is the general comment of the whole-length content and the describing of the intending view of researching.

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The numerical results show that the secondary flow is enhanced in the cross section vertical to the mainstream for the revised burner, the gas tangential velocity component increases, and the rotational flow is intensified.

結(jié)果表明：改進后的燃燒器明顯地增加了垂直于主流方向截面上的二次流国产一级迷奸黄片视频大全，氣體的切向分速度增大，旋流程度增強欧美高清国产在线有码，能夠有效地改善煤氣和空氣的混合效果3P视频国产。

The method is applicable for measuring vorticity of a strong rotational flow.

該方法適用于具有強旋轉(zhuǎn)流動渦量的測量。

The eddy flow around waterspout of a tub and the cyclone in the bottom of a typhoon are convergent flow-in rotational flow .

水槽排水孔形成的旋渦和臺風(fēng)底層的氣旋都是Coriolis力作用下的輻合流入層旋流中文自拍日韩在线视频观看网站，臺風(fēng)頂部是輻散流出層氣旋一区视频免费观看。

It examine rotational speed through tachogenerator it sends processor to carry on corresponding adjustment make rotational speed strengthen by stability; Have corresponding excessive pessure, pass flow, owe pigeonholing and protected, strengthen systematic dependability.

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The relative leakage flow coefficient decreases with the increase of the rotational speed, and the leakage flow rate of the labyrinth seal at the high rotational speed of more than 6 000r/min decreases by 5.1%.

采用標(biāo)準k-ε紊流模型和三維RANS方程求解方法高清无码小视频，數(shù)值研究了密封間隙、壓比中文字幕日韩精品人妻在线视频、轉(zhuǎn)速對典型迷宮密封泄漏特性的影響規(guī)律A片黄片视频在线免费观看。

By analyzing the results of simulation and experiment, a series of new phenomena were found. There is an inner boundary within the rotational flow field of cyclone. The velocity head is zero on the inner boundary.

通過對仿真結(jié)果的分析，并結(jié)合試驗數(shù)據(jù)日韩在线专区，揭示出一系列新的現(xiàn)象亚洲av无码无线在线观看，主要歸納為：旋風(fēng)分離器內(nèi)的旋轉(zhuǎn)流場中存在一內(nèi)邊界，其速度頭為零国产熟视频在线。

The electrical properties of single-walled carbon nanotube films in rotational flow of electrolyte solution have been studied.

最后對單壁碳納米管膜在轉(zhuǎn)動的電解質(zhì)溶液中的電學(xué)性質(zhì)進行了研究成年无码Av动漫网站黄。