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(chǎng)和溫度應(yīng)力欧美成人网1314WWW，闡述了圍巖彈性抗力系數(shù)的確定方法免费一看一毛片，得出了混凝土截面的切向正應(yīng)力。

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.

實(shí)驗(yàn)表明色色爱爱视频，法向吹氣和噴管切向吹氣都是有效的控制手段1024你懂的金沙人妻片，吹氣對(duì)其中圓錐截面模型的影響最大欧美福利1区，橢圓截面模型次之，對(duì)帶棱截面模型影響最小欧美日韩α片在线观看。

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(jì)算結(jié)果表明人人插人人妻，切向哥氏力推動(dòng)了通道截面內(nèi)的雙渦二次流，徑向哥氏力則使得近側(cè)壁流體加速和中心流體減速在线观看激情无码毛片。換熱計(jì)算結(jié)果從定性趨勢(shì)上吻合公開文獻(xiàn)中的實(shí)驗(yàn)現(xiàn)象国产1级在线视频网站免费，反映了旋轉(zhuǎn)附加力的基本影響規(guī)律。

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.

推導(dǎo)中除考慮曲率變化欧美处破精品视频免费看、截面形心和剪切中心分離免费国产免费av、梁的橫向剪切變形影響等因素外，還考慮了曲率沿橫向變化對(duì)豎向撓轉(zhuǎn)角的影響欧美精品免费网页。

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(jìn)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色在线视频导航，氣體的切向分速度增大，旋流程度增強(qiáng)102av视频在线，能夠有效地改善煤氣和空氣的混合效果。

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(cè)得了流場(chǎng)中各部分共計(jì)16個(gè)截面的流場(chǎng)分布玖玖网在线，分別擬合得到各區(qū)域外旋流中切向速度分布經(jīng)驗(yàn)公式热热热热热热热热热热热热色色色色色色；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(yàn)公式。

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.

出口截面上雷諾應(yīng)力分布表明：該進(jìn)氣道出口流場(chǎng)主流方向的紊流強(qiáng)度較大草哟哟在线，最大值已達(dá)8%以上国产美女免费自拍视频网站，這給進(jìn)／發(fā)匹配造成影響；正雷諾應(yīng)力和剪切應(yīng)力沿徑向和周向的分布特點(diǎn)則說明進(jìn)氣道出口核心流區(qū)域流動(dòng)基本是各向同性的这里只有精品美女老师，然而在近壁區(qū)卻表現(xiàn)為明顯的各向異性又大又黄又粗高潮免费。

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.

對(duì)軸流式通風(fēng)機(jī)在不同安裝角時(shí)的流場(chǎng)變化進(jìn)行了實(shí)驗(yàn)研究，得到了通風(fēng)機(jī)的總性能曲線中文字幕第22页；并用固定在轉(zhuǎn)子前seyoyo在线观看、后測(cè)量平面的熱線，測(cè)量了最高效率點(diǎn)處不同安裝角時(shí)葉片通道進(jìn)午夜免费电影网、出口軸向和切向速度的分布国产一级性爱免费视频，從而能夠清楚地了解到，通風(fēng)機(jī)在安裝角變化時(shí)亚洲另娄视频，葉片通道進(jìn)404黄色网站点击进入、出口截面流動(dòng)結(jié)構(gòu)的變化。

shearing stress：切應(yīng)力

考慮截面的 右半部分 第2章 應(yīng)力狀態(tài)分析章 2-2 應(yīng)力的概念 正應(yīng)力與切應(yīng)力 1) 應(yīng)力(stress)的概念 2) 正應(yīng)力(normal stress)與切應(yīng)力(shearing stress) 3) 應(yīng)力符號(hào)的規(guī)定 正面:與坐標(biāo)正方向相同的應(yīng)力分量為正,