Results of this thesis provide guiding significance to waterpower design of impeller of the low specific speed centrifugal pump.

對(duì)低比轉(zhuǎn)速離心泵葉輪的水力設(shè)計(jì)具有一定的指導(dǎo)意義久久有线视频。

The results of the speed of flow field and pressure distribution in the impeller are obtained. Some important flow phenomena are found.

并對(duì)數(shù)值計(jì)算結(jié)果進(jìn)行了深入的分析研究国产欧美同性另类色视频，為葉輪的水力設(shè)計(jì)提供了有價(jià)值的信息。

In the paper, river and the downstream area of dike are regarded as a whole system, and hydraulic model of coupling 1-D river and gradual dike-break is established, therein the Preissmann implicit difference scheme is applied to Main River, and the FVM is applied to the breach and polder. On the basis of FVM and unstructured grids, TVD ?

本文將河道與堤壩下游區(qū)域視為一個(gè)整體日日干夜夜操一区二区三区，對(duì)于單一河道采用Preissmann四點(diǎn)隱式差分格式計(jì)算中文字幕在现观看，對(duì)于潰口及圩區(qū)采用有限體積法，建立了一維河道與堤壩漸潰耦聯(lián)的水力模型，也是一維十八禁www、二維耦合的水流模型人人操av综合网。

The internal relations between average velocity of water flow and load weight is discussed when stuff canister moves incipiently.

以筒裝料管道水力輸送中料筒起動(dòng)階段為研究對(duì)象，研究料筒起動(dòng)時(shí)承擔(dān)輸運(yùn)任務(wù)的水流的平均流速與料筒荷重間的內(nèi)在聯(lián)系五月丁香婷中文。

The article studies mostly the incipient motion process in tube-contained raw material hydraulic transportation. The internal relations between average velocity of water flow and load weight is discussed when stuff canister moves incipiently.

以筒裝料管道水力輸送中料筒起動(dòng)階段為研究對(duì)象爱青岛黄色网站推荐，研究料筒起動(dòng)時(shí)承擔(dān)輸運(yùn)任務(wù)的水流的平均流速與料筒荷重間的內(nèi)在聯(lián)系。

Finally, calculate on the actual situations of Sanbanxi Project on the basis of above theoretic outcome of researches and achieve a result accordant with the data of model test; and, taking this project as the object, make a study on the influence of water level variations at the infall of tunnel exit on hydraulic parameters of closure gap and conducts sensitivity analysis.

最后日本欧美国产中文字幕，利用上述研究的理論成果人人干人人弄人人插，對(duì)三板溪工程的實(shí)際情況進(jìn)行計(jì)算，取得了與模型實(shí)驗(yàn)數(shù)據(jù)較吻合的結(jié)果色五月先锋无码中文字幕；并以此工程為對(duì)象99精品久久费精品国产精品，研究隧洞出口匯流處的水位變化對(duì)龍口水力參數(shù)的影響程度，進(jìn)行敏感性分析456亚洲人成高清在线观看。

After understanding hydrocyclone's structure and its separating factor of performance by improving on its interior flow field's angle embarking in the concept design phase, we have made full useful of a new conceptual method about TRIZ(Theory of Inventive Problem Solving) and TOC, that is to say, we have made the innovative design of compound hydrocyclones and vibration isolation of electrical machinery combining TRIZ tools with the TOC logical thinking tool,, and devised one kind of new entrance structure, turnstile shape and overflow structure for de-oiling compound hydrocyclones.

在全面理解水力旋流器的結(jié)構(gòu)和影響其分離性能的因素后一级作爱免费视频，從改善旋流器內(nèi)部結(jié)構(gòu)流場(chǎng)的角度出發(fā)，利用TRIZ和TOC相結(jié)合的設(shè)計(jì)方法人人爽人人操97，應(yīng)用到復(fù)合式旋流器創(chuàng)新設(shè)計(jì)和電機(jī)的隔振中精品国产麻衣在线观看AV，從而設(shè)計(jì)出一種更為高效的入口結(jié)構(gòu)、旋轉(zhuǎn)柵形狀及溢流管結(jié)構(gòu)的復(fù)合式油水分離旋流器黄A色片。

The determination of formation fracture pressure and the geometry of hydraulic fracture is critical for designing rational fracturing program, providing optimal operation pressure, avoiding interzonal crossflow caused by excessive fracture height, and better stimulating the reservoirs.

確定地層破裂壓力和水力壓裂裂縫延伸幾何形態(tài)自拍视频精品，對(duì)于設(shè)計(jì)合理的壓裂方案、提供合理的壓裂施工壓力十八岁以下禁止观看的黄、避免壓裂裂縫高度過(guò)高導(dǎo)致地層間的層間竄漏国产无码a.、更好地達(dá)到改善儲(chǔ)層的目的至關(guān)重要。

The mathematical model of the first class control inverse problem with specified pressure is established, which is improper.

對(duì)系統(tǒng)的其它管道與水力元件則采用沿空間方向的特征線法進(jìn)行求解自拍视频日韩在线视频观看网站免费。

Second, transient flow for vertical well and fractural well in porous media with arealanisotropy has been researched in this paper. The analytic solution for vertical well andsemi-analytic solution for vertical fractural well is developed by using image inversion,superposition principle, Laplace transformation, Fourier transformation, as well as theirinverse transforms, and storage and skin are taken into account. For vertical fractural well,influence of pressure and productivity is studied when the orientation of artificial fractureisn't in accordance with the direction of major permeability, it is fundamental to evaluatepotential and analyze well test data.

文中研究了平面各向異性儲(chǔ)層不定常滲流問(wèn)題18禁三级黄色网站，建立了平面各向異性儲(chǔ)層交叉直線邊界中一口直井滲流的數(shù)學(xué)模型，利用鏡像反演日本三级黄在线观看、Laplace變換日本青草久久99热精品一区、Fouier變換及其反變換推導(dǎo)了不同邊界條件下直井的Laplace空間解析解，考慮井儲(chǔ)和表皮的影響欧美特级AAAA，分析了曲線特征及影響因素的敏感性曲線亚洲色图欧洲色图激情文学；并運(yùn)用影響橢圓及Duhamel疊加原理，推導(dǎo)了平面各向異性儲(chǔ)層中垂直裂縫井的壓力分布方程又粗又大又色视频网站，考慮了水力裂縫與主滲透率軸成一定角度對(duì)壓力及產(chǎn)能的影響九九国产黄色视频上传在线观看，為垂直裂縫井的產(chǎn)能評(píng)價(jià)及試井分析提供依據(jù)。