The temperature field and thermal stress on the spiral casing structure of large\|sized hydropower station are analyzed by the finite element method in this paper. The method to define the coefficient of elastic resistance on rock is presented.

應(yīng)用有限元方法分析了某大型水電站地下廠房中蝸殼結(jié)構(gòu)的溫度場和溫度應(yīng)力，闡述了圍巖彈性抗力系數(shù)的確定方法在线。中文字幕，得出了混凝土截面的切向正應(yīng)力欧美肏屄网。

The results show that, both normal and tangential blowing are effective means of flow control, the influence of blowing on the cone-cylinder is strongest, followed by the influence of blowing on the elliptic forebody and on chine forebody.

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Effects of Coriolis force were analyzed with the three dimensional simulations and the following conclusions were drawn: The tangential component of Coriolis force induces cross stream secondary flow in the form of two-cell pattern,while the radial component of Coriolis force decelerates and accelerates the cent...

計算結(jié)果表明一级欧美黄片在线播放，切向哥氏力推動了通道截面內(nèi)的雙渦二次流aa精品视频在线观看，徑向哥氏力則使得近側(cè)壁流體加速和中心流體減速。換熱計算結(jié)果從定性趨勢上吻合公開文獻中的實驗現(xiàn)象先锋影音无码资源，反映了旋轉(zhuǎn)附加力的基本影響規(guī)律欧美A片久久。

During the process, following were considered:the effects of variable radius of cross section on the vertical bending deflection angle, noncoincidence of torsional center and gravity center, the effect of transverse shearing strain on energy of strain.

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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.

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Under maximal flux (Vi = 4.3 m/s),fluid field of 16 cross sections in the model were investigated, the tangential velocity empirical equation of each partition was got, and empirical equations of axial and radial velocity on the ring partition between baffle bar and cylinder wall were obtained.

在全氣速（Vi = 4.3 m/s）下測得了流場中各部分共計16個截面的流場分布美女野外后λ式动态图片搜索，分別擬合得到各區(qū)域外旋流中切向速度分布經(jīng)驗公式；擬合得到在導(dǎo)流體與筒壁間環(huán)形段軸向速度分布和徑向速度分布經(jīng)驗公式在线看日本黄色视频。

This paper gives the distribution of the Peynolds stresses, which shows that the flow near the wall at the exit is obviously nonisotropic and the maximal turbulence intensity is enough high to impact on the matching of the intake and the engine. The unsteady characteristics of the flow evince that the flow doesn't separate obviously.

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The performance curves of the experimental fan have been obtained and the flow field has been measured at the best efficiency point of each setting angle, in fixed plane downstream the rotor with a constant temperature hot-wire anemometer and a periodic multisampling and averaging technique by an on-line microcomputer.

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