Unsteady flow field due to rotor-stator interaction in turbomachinery is studied in this paper. The integral kinetic equations with absolute and relative velocity are derived.

本文以葉輪機(jī)械內(nèi)部動(dòng)靜部件耦合的非定常流場為研究對象，在絕對坐標(biāo)系下建立了包含絕對速度與相對速度的統(tǒng)一運(yùn)動(dòng)方程組一女三男A片视频。

The unsteady flow s in a agitator are calculated numerically, and compared with the author′s experimental data.

研究了攪拌器內(nèi)非定常流場的分布男人看的网址，并與實(shí)驗(yàn)結(jié)果做了比較。

Power-law fluid is used to describe the Non-newtonian rheological property of the produced fluid in a polymer-driving well; the governing equations, boundary and initial equations of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially is established in bipolar coordinates system; formulas of instantaneous flow rate and stress distribution on the outwall of the inner cylinder of the unsteady flow of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially are established.

在理論上黄网站免费看黄色，用冪律流體模型描述了聚合物驅(qū)油井產(chǎn)出液的非Newton流變性黑人又粗又长大战白妞；建立了雙極坐標(biāo)系下冪律流體在內(nèi)管做軸向往復(fù)運(yùn)動(dòng)的偏心環(huán)空中非定常流的控制方程及邊界條件和初始條件方程；建立了雙極坐標(biāo)系下冪律流體在內(nèi)管做軸向往復(fù)運(yùn)動(dòng)的偏心環(huán)空中流動(dòng)時(shí)瞬時(shí)流量和流體在內(nèi)管壁上的壓力分布計(jì)算公式欧美女同性爱。

In this paper,the Newtonian fluid model was used to describe rheological property of the produced fluid,and motion equation of unsteady flow of Newtonian fluid in eccentric annulus with the inner cylinder reciprocating axially was transformed by means of the method of undetermined coefficients.

采用Newton流體模式描述油井產(chǎn)出液的流變性能看的狼友网站，利用待定系數(shù)法變換Newton流體在內(nèi)管做軸向往復(fù)運(yùn)動(dòng)的偏心環(huán)空中非定常流的運(yùn)動(dòng)方程，建立給定流量下Newton流體在內(nèi)管做軸向往復(fù)運(yùn)動(dòng)的偏心環(huán)空中非定常流的壓力梯度計(jì)算公式，并利用有限體積法對壓力梯度進(jìn)行數(shù)值計(jì)算91人妻在线综合。

Taking HPAM solutions as an example, the unsteady flow of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially is calculated; the distribution of velocity, flow rate and stability parameter is obtained; taking HEC solutions as another example, the flow of second order fluid in eccentric annuli with the inner cylinder moving axially is calculated too; the distribution of velocity and stress is obtained; the effect of eccentricity and axial movement on stress distribution on the outwall of the inner cylinder is analysed.

在理論上www黄片观看com，分別用二階流體和冪律流體模型描述聚合物驅(qū)油井產(chǎn)出液的非Newton流變性；分別建立了雙極坐標(biāo)系下二階流體和冪律流體在內(nèi)管做軸向往復(fù)運(yùn)動(dòng)的偏心環(huán)空中非定常流的控制方程及邊界條件和初始條件方程xx国产；建立了冪律流體在內(nèi)管做軸向往復(fù)運(yùn)動(dòng)的偏心環(huán)空中流動(dòng)的穩(wěn)定性參數(shù)和流體在內(nèi)管壁上的壓力分布計(jì)算公式久久黄色密月网站；建立了二階流體在內(nèi)管做軸向運(yùn)動(dòng)的偏心環(huán)空中流動(dòng)的流體在內(nèi)管壁上的壓力分布計(jì)算公式。

The theoretical and computational results show that an important reason resulting in eccentric wear of the inner cylinder and the pumping rod lies in the nonuniformity of the stress distribution on the outwall of the inner cylinder which yields excentralization effect of the pumping rod when swabbing fluid flows in eccentric annuli with the pumping rod moving axially in a well.

在實(shí)驗(yàn)上日韩精品久久久久，通過不同重量百分比濃度的HPAM水溶液在內(nèi)管做軸向往復(fù)運(yùn)動(dòng)的偏心環(huán)空中非定常流實(shí)驗(yàn)黄色网站视频一区，把由理論公式算得的時(shí)間平均流量與實(shí)驗(yàn)中測得的時(shí)間平均流量做了比較，驗(yàn)證了本文數(shù)值計(jì)算冪律流體在內(nèi)管做軸向往復(fù)運(yùn)動(dòng)的偏心環(huán)空中非定常流方法的正確性久久久久精品无码观看不卡；上述的理論與計(jì)算表明国产精品一级A级理论片在线观看，抽油機(jī)井桿管偏磨的一個(gè)重要原因是，在聚驅(qū)工況下久色黄色网站，抽汲液體在抽油桿做軸向運(yùn)動(dòng)的井筒中流動(dòng)時(shí)免费二级九九黄色，抽汲液體作用在抽油桿外壁上的壓力分布的不均勻性所引起的抽油桿在井筒中的偏心效應(yīng)。

The unsteady flow induced by two blunt bodies between two parallel walls is compared with the STARCD software result. The unsteady turbulent flow field within impeller and vaned diffuser in centrifugal fan is computed for the first time in China.

對Couette流動(dòng)和同軸旋轉(zhuǎn)圓柱面間流動(dòng)的計(jì)算驗(yàn)證了移動(dòng)網(wǎng)格方法和改進(jìn)后PISO算法的可靠性日韩欧美中文精品第一页；進(jìn)而對平行平板間兩相對運(yùn)動(dòng)鈍體繞流的非定常流場進(jìn)行了計(jì)算熟女啪啪视频，其結(jié)果與STAR-CD軟件結(jié)果一致。

In this paper, the effects of solidity of rotor-stator cascades on axial-flow compressor performance are investigated with steady and unsteady flow calculation.

采用定常流和非定常流計(jì)算方法研究了各種動(dòng)靜葉稠度組合對軸流壓縮機(jī)性能的影響隐私网占。

The above problems are studied in this thesis. First, the implicit NND scheme with mix flux splitting method proposed by Zhang Hanxin that is first order accurate in time and second order in space is modified. The modified scheme keeps the characteristics of fast convergence and is second order accurate both in time and space. It can be capable of simulating the unsteacly flow. Second, the topological method founded by Zhang Hanxin is improved to study the characteristics of vortex near the singular point on its axis and the cross streamlines on the longitudinal section passing the vortex axis. On the basis of topological results, a program which visualises numerical results is made out. It can help us analyse the characteristics of vortex motion.

本文對上述問題做了研究：第一毛毛片毛片性色VA久久久，在數(shù)值模擬方面，借助于張涵信提出的NND算法和混合通量法人人干人人模，我們將他建立的時(shí)間為一階久久国产一久久、空間為二階精度的快速隱式算法推廣為時(shí)間和空間均為二階精度的算法，這樣做保留了原格式收斂快的特點(diǎn)操B无码一级毛片，而且能適用于真實(shí)的非定常流態(tài)的計(jì)算欧美性爱在线；第二，將張涵信的拓?fù)浞治龇椒右酝茝V超碰人妻人人干，研究了渦軸附近及破裂點(diǎn)鄰域內(nèi)流場的空間特征国产精品一级乱色视频，并以這些拓?fù)浞治鼋Y(jié)果為指導(dǎo)，研制了一套顯示計(jì)算結(jié)果的軟件日本wwwwwwwwwwww，這一軟件能很好地幫助我們分析流場的計(jì)算結(jié)果和旋渦演變的特征黄网址资源站在线观看。

Phase-lagged cyclic boundary condition is implemented by a novel method in conjunction with the developed sliding interface technique to accurately simulate the arbitrary pitch ratio rotor/stator interaction without any modifications of the physics of the problem. It's for the first time to compose the computational area into one structured grids including both rotor/stator of centrifugal or axial turbomachinery with arbitrary pitch ratio. This method can eliminate the iteration of boundary conditions on the sliding interface and calculate the unsteady flow within rotor and stator simultaneously.

為了能夠在較小的計(jì)算區(qū)域內(nèi)不改變?nèi)~型而真實(shí)地反映出任意柵距比時(shí)的內(nèi)部非定常流場，并避免近似仍采用相位后滯周期性條件日本xx视频，結(jié)合本文發(fā)展的網(wǎng)格技術(shù)久久这里有精品，給出了一種新的實(shí)施方法，首次將動(dòng)久久久久国产精品永久首页、靜葉片數(shù)不等的離心式/軸流式葉輪機(jī)械轉(zhuǎn)子99riav.1、靜子計(jì)算區(qū)域組合在一套結(jié)構(gòu)化計(jì)算網(wǎng)格中亚洲欧美日韩精品一区二区三区熟女乱，動(dòng)/靜葉排間的滑移界面完全按內(nèi)場處理，避免了每一時(shí)層內(nèi)亚州第一在线a，滑移界面處邊界條件的迭代計(jì)算国产免费A片区；并保證了每一時(shí)層，滑移界面處流動(dòng)參數(shù)的守恒特性A片一极片。

unsteady aerodynamic force：非穩(wěn)態(tài)空氣動(dòng)力 非定常空気力

■ UNIX 操作系統(tǒng) UNIX | ■ unsteady aerodynamic force 非穩(wěn)態(tài)空氣動(dòng)力 非定橙蘸费侵蘼槎咕乓唬空気力 | ■ unsteady flow 非穩(wěn)態(tài)流 非定常流

unsteady liapunov function：非定常李亞普諾夫函數(shù)

unsteady flow 非定常流 | unsteady liapunov function 非定常李亞普諾夫函數(shù) | unsteady motion 非穩(wěn)定運(yùn)動(dòng)

u teady liapunov function：非定常李亞普諾夫函數(shù)

u teady flow 非定常流 | u teady liapunov function 非定常李亞普諾夫函數(shù) | u teady motion 非穩(wěn)定運(yùn)動(dòng)

stationary flow：穩(wěn)定流; 定常流; 穩(wěn)流

stationary combustion source 靜止火源; 靜止火箱; 靜止燃燒室 | stationary flow 穩(wěn)定流; 定常流; 穩(wěn)流 | stationary source 固定污染源; 靜止污染源

stationary flow：定常流

stationary field 恒定場 | stationary flow 定常流 | stationary motion 定常運(yùn)動(dòng)

stationary flow：平穩(wěn)流定常流

stationary distribution 平穩(wěn)分布 | stationary flow 平穩(wěn)流定常流 | stationary function 平穩(wěn)函數(shù)

UNSTEADY：非定常

并不需要噴嘴流道尺寸變化之詳細(xì)資料. 所造成之總質(zhì)量流率的誤差,例如:滑動(dòng)(slip)及氣泡體積因流場壓力改變混合室之出口壓力亦即噴嘴(Nozzle)的入口壓力. 般而言,噴嘴的入口效模擬與對應(yīng). 因此,開發(fā)一套二維甚至是三維的,非定常( unsteady)的,

unsteady flow：非定常流

unstable wave 不穩(wěn)定波 | unsteady flow 非定常流 | unsteady liapunov function 非定常李亞普諾夫函數(shù)

nonstationary flow：非定常流

nonstatic process 非靜態(tài)過程 | nonstationary flow 非定常流 | nonstationary motion 不穩(wěn)定運(yùn)動(dòng)

nonstationary flow：非定常流,非恒定流

nonstationary control 非定常制御 | nonstationary flow 非定常流,非恒定流 | nonstationary method 非平穩(wěn)方法