Considering the nonlinear and Elastic-Plastic and anisotropy trait of soil, the method of numerical analysis can reflect the relation between abreaction of pore press and framework distortion of soil and can simulate the fact of field and complex boundary condition and so on. So the method of numerical analysis has been abroad used in the area of theory research.

數(shù)值分析方法可以考慮到土體的非線性久久精品国产福利国产秒、彈塑性和各向異性等特點(diǎn)国内一级特黄视频，能準(zhǔn)確地反映出孔壓消散與土骨架變形之間的關(guān)系，而且可以較好地模擬現(xiàn)場(chǎng)實(shí)際情況以及復(fù)雜的邊界條件等人妻综合一区视频，因此在理論研究領(lǐng)域得到了比較廣泛的應(yīng)用91亚洲网址。

To investigate the thermal protection effects of a heat sinking vest with phase-change material in high-temperature and high-humidity environment and the feasibility of numerical computation of heat transfer to the vest, based on the analysis of heat and mass transfer characteristic about the accouterments, a thermodynamic model was set up with the enthalpy method. The uniform energy equation was constructed for the whole domain, and the implicit difference equation was used in every node, the distribution of enthalpy was solved by numerical method.

為了研究相變材料降溫服在高溫高濕條件下的熱防護(hù)性能和相變材料數(shù)值計(jì)算方法應(yīng)用于降溫服傳熱計(jì)算的可行性，在分析服裝傳熱傳質(zhì)特點(diǎn)及計(jì)算方法的基礎(chǔ)上中文无码精品久久高潮喷水，利用焓值分析法對(duì)服裝中的相變材料建立傳熱模型亚洲一区二区在线曰日韩在线，在整個(gè)區(qū)域建立統(tǒng)一的能量方程，在區(qū)域結(jié)點(diǎn)進(jìn)行離散爱爱无码免费视频，并進(jìn)行隱式求解www色色色色色色com，得到焓的分布。

Furthermore data assimilation experiments are conducted with MM5 Adjoint-model Assimilation System made by adjoint codes. With a case of heavy rainfall taking place from 00h July 23 to 00h July 24,2002, several numerical simulation experiments of different schemes are performed. The results are as follows. MM5 Adjoint-model Assimilation System not only can improve the initial field effectively and promote the coordination with the model but also can enhance the forecast on the precipitation and other elements. The assimilation of CDW has an improvement on quality of upper wind. The effect of direct numerical simulation with utilizing the CDW to amend the initial field gains the advantage over the one not.

結(jié)果表明色私拍97，MM5伴隨模式同化系統(tǒng)能有效改善初始場(chǎng)與模式的協(xié)調(diào)能力黄色网站免费在线观看国产精品，提高模式對(duì)于降水場(chǎng)和其它要素場(chǎng)的預(yù)報(bào)；使用云導(dǎo)風(fēng)資料修正初始場(chǎng)后直接模擬的效果比未使用時(shí)直接模擬的效果要好色视频网站在现观看，對(duì)部分區(qū)域的強(qiáng)降水預(yù)報(bào)精度有一定程度的改善免费看A片不卡；使用伴隨模式同化系統(tǒng)后，加入云導(dǎo)風(fēng)資料的同化試驗(yàn)對(duì)其它要素的改善與直接同化常規(guī)資料的效果相比免费观看国产嫖妓视频，改善優(yōu)勢(shì)不明顯99国产性爱，但從各要素的誤差來(lái)看，對(duì)于風(fēng)場(chǎng)的改善最好麻豆91在线。

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory. The key techniques used in numerical simulation of the three-dimensional extrusion from dies such as decision of boundary conditions, creation of initial velocity field, selection of penalty factor, high Weissenberg number problem , regeneration of the free surface were studied in detail.

中文題名聚合物異型材口模擠出三維流動(dòng)研究副題名外文題名 Study on three-dimensional flow of polymer melts during the process of profile extrusion from dies 論文作者涂志剛導(dǎo)師柳和生包忠詡教授學(xué)科專業(yè)材料加工工程研究領(lǐng)域\研究方向?qū)W位級(jí)別博士學(xué)位授予單位南昌大學(xué)學(xué)位授予日期2001 論文頁(yè)碼總數(shù)148頁(yè)關(guān)鍵詞擠出成型聚合物材料擠出口模聚合物異型材館藏號(hào)BSLW /2003 /TQ320 /9 本文建立了求解擠出口模內(nèi)冪律流體流動(dòng)速度場(chǎng)的通用三維罰有限元模型福利小视频网站；對(duì)于非線性粘彈性的Phan Thien-Tanner流體，為了降低模擬計(jì)算對(duì)計(jì)算機(jī)硬件的要求国产综合在线，并使模擬計(jì)算更加穩(wěn)定狂野欧美乱精品A片，采用了一種去耦算法，包括罰有限元方法能够看黄的网站、擬體力方法和動(dòng)量方程的橢圓類方程轉(zhuǎn)化方法欧美apian，并建立了求解速度場(chǎng)和粘彈性應(yīng)力場(chǎng)的總體有限元方程；對(duì)于PTT流體的擠出脹大問(wèn)題，提出了擠出脹大熔體口模內(nèi)外分離模擬法加勒比中文网，這樣可以顯著降低數(shù)值模擬對(duì)計(jì)算機(jī)硬件的要求欧美1级。

A comprehensive review and expectation about researching status in quo and development trends of viscous flow numerical simulation technique are given in this paper and grids generation methods, numerical computation methods, turbulent model and moving boundary simulation methods are the emphasis study in the paper. On the basic of above job a mathematical model of simulation turbulent flow with free surface is established and triumphantly applied to numerical computation on 2D spillway and 3D spillway with frusta of brake.

本文針對(duì)粘流場(chǎng)數(shù)值模擬技術(shù)的研究現(xiàn)狀和發(fā)展動(dòng)態(tài)作了比較全面的回顧與展望，重點(diǎn)研究了網(wǎng)格生成技術(shù)超碰97无码中文字幕、數(shù)值求解技術(shù)18以下禁止岁观看网站、湍流模型技術(shù)和動(dòng)邊界模擬技術(shù)，在此基礎(chǔ)上建立了模擬自由面湍流場(chǎng)的數(shù)學(xué)模型十八岁在线观看的黄片，并成功地應(yīng)用到二維溢流壩和帶閘墩的三維溢流壩過(guò)壩水流的數(shù)值計(jì)算可以免费看的av网站。

The development trend of the numerical control knife rest is: With the development of numerical control lathe, numerical control knife rest begin to change one hundred sheets , electric liquid is it urge and urge direction develop while being servo to make up fast.

數(shù)控刀架的發(fā)展趨勢(shì)是：隨著數(shù)控車床的發(fā)展，數(shù)控刀架開(kāi)始向快速換刀黄色片欧美性爱、電液組合驅(qū)動(dòng)和伺服驅(qū)動(dòng)方向發(fā)展久久e6精品视频。

The article definitions the severals and numerical resources industries to turn the related concept first, introduce the present condition of the local and numerical resources construction, and carried on the introduction and simple analysis to the development of the local and numerical resources business enterprise.

文章首先界定了幾個(gè)與數(shù)字資源產(chǎn)業(yè)化相關(guān)的概念自慰网站污污，介紹了國(guó)內(nèi)數(shù)字資源建設(shè)的現(xiàn)狀三级性爱视频免费在线观看，并對(duì)國(guó)內(nèi)數(shù)字資源企業(yè)的發(fā)展進(jìn)行了介紹和簡(jiǎn)單的分析。接下來(lái)對(duì)國(guó)內(nèi)數(shù)字資源企業(yè)的產(chǎn)生背景做了全面的分析性欧美久久，并對(duì)它們的發(fā)展現(xiàn)狀做了比較好看黄色视频。然后對(duì)目前國(guó)內(nèi)數(shù)字資源產(chǎn)業(yè)的發(fā)展環(huán)境做了分析。

The company has the advanced plate work processing equipment, the static electricity spraying equipment 2 sets, including high accuracy numerical control punch press, numerical control knee bend machine, numerical control plate cutter, static electricity spraying equipment, other each kind of equipment.

公司擁有先進(jìn)的鈑金加工設(shè)備东京热黄色网站，靜電噴涂設(shè)備2套色网站五月天，包括高精度數(shù)控沖床，數(shù)控折彎?rùn)C(jī)天天插天天拍一拍，數(shù)控剪板機(jī)国内自拍第一页91视频，靜電噴涂設(shè)備，其他各種設(shè)備男人扒开女人的腿桶到爽视频。

During the four years study on the project, we develop a dynamical forecast model that describing the subtropical ridge surface. A new theory on the role of the land-sea thermal difference on the formation of the Subtropical High is advanced. It is concluded that in the summer subtropics over each continent and its adjacent ocean LO, SE, CO, and a double-dominant heating from west to east compose a LOSECOD heating quadruplet. The influence of the Eurasia continent on SH varies according to the seasonal variation. From the ideal numerical simulation it is shown the important role of the Eaiuan continent and the huge topography on the mechanism of formation and mantanence of the SH during the summer. It is verified by the numerical simulation that the extension of the subtropical continent into the tropics greatly enhances the " East Asian monsoon". Through the Rossby energy dissipation theory it is verified that the deep latent convective heating induces the onset of the South China Sea monsoon over the Bay of Bengal. The relationship and mechanism between the precipitaiton over the East Asia and the Subtropicla high is illustrated by the data. It is also found the close phase lock between the east-west shift of the SH and the disturbence of the east wind belt over the tropical troposphere. The interaction between the structure and activity feature of the SH and the Meiyu over the Yangtze-Huaihe river valley is revealed from the data. The numerical simulation verified the impact of the different SH pattern on the path of the typhoon.

本項(xiàng)目的研究發(fā)展了描述副熱帶高壓脊面變化的動(dòng)力模型日本特级黄大片一区二区三区，提出了夏季副熱帶地區(qū)四葉型非絕熱加熱分布型及相應(yīng)環(huán)流拼圖的創(chuàng)新理論；明確了大陸尺度的海陸熱力差異在副熱帶高壓形成中的作用黑人操屄；指出歐亞地形對(duì)副熱帶高壓和氣候的影響隨季節(jié)變化而變化人妻系列精品影片无码专区，通過(guò)數(shù)值試驗(yàn)證明春季青藏高原的感熱加熱對(duì)亞洲夏季風(fēng)的爆發(fā)地點(diǎn)起了&錨定&的作用，進(jìn)一步證實(shí)了副熱帶高壓斷裂和亞洲夏季風(fēng)的最早爆發(fā)地點(diǎn)發(fā)生在孟加拉灣東岸欧美成年人电影；利用Rossby波能量頻散理論證明了孟加拉灣深對(duì)流潛熱釋放誘導(dǎo)南海季風(fēng)爆發(fā)的機(jī)制www.999国产；揭示了東亞季風(fēng)降水的季節(jié)內(nèi)變化與西太副高的關(guān)系及機(jī)理；揭示了西太副高與東西風(fēng)帶中擾動(dòng)之間的相互作用過(guò)程欧美妇人性交A片，指出西太副高的東西活動(dòng)與熱帶對(duì)流層上空東風(fēng)帶擾動(dòng)和中緯度西風(fēng)帶擾動(dòng)的移動(dòng)和鎖相密切相關(guān)爱操AV；研究了夏季淮河流域梅雨期間副高結(jié)構(gòu)和活動(dòng)特征及其與江淮暴雨的相互作用；驗(yàn)證了不同副熱帶高壓形態(tài)對(duì)臺(tái)風(fēng)路徑的不同影響欧美性爱一级在线观看；通過(guò)數(shù)值試驗(yàn)證明了歐亞大陸和青藏高原等大地形對(duì)副熱帶高壓形成和維持的重要作用在线视频福利。

It is available to carry out numerical simulation and fluid dynamic analysis further. Based on Frozen-Rotor Approach and Rotor-Stator Approach, the numerical simulation was carried out in the centrifugal pump and the numerical results showed that the flow in the impeller and volute of centrifugal pump is periodically unsteady. Due to the interaction between impeller and volute the flow is characterized by pressure fluctuations and it is the strongest at impeller outlet and at the vicinity of the tongue. The unsteady pressure fluctuations are also one of the most important reasons to induce vibration and noise. Secondly, the flow field of the volute is characteristic of the vortex flow, and the vortex flow presents very complicated developing process which is creating, increasing and dissipating every now and then. All these lead to very large flow loss in the volute.

采用Frozen-Rotor凍結(jié)轉(zhuǎn)子模式和Rotor-Stator滑移界面模式系統(tǒng)開(kāi)展了不同工況下離心泵內(nèi)葉輪與蝸殼耦合的定常和非定常流動(dòng)研究，結(jié)果表明由于葉輪與蝸殼的干擾蝸殼進(jìn)口周向流動(dòng)的不均勻性是非常強(qiáng)烈的欧美性高潮xxxx，特別是葉輪與蝸舌間的相互干擾最為強(qiáng)烈国产一级性生活免费视频，一直影響到葉輪進(jìn)口和蝸殼擴(kuò)散管出口的流場(chǎng)黄色黄片；在蝸殼內(nèi)整個(gè)流動(dòng)是以旋渦形式向出口推進(jìn)的，并隨著包角的變化旋渦表現(xiàn)出十分復(fù)雜的產(chǎn)生啦啦啦www观看在线下载、發(fā)展和耗散的演化過(guò)程人人欧美乱码专区视频免费，導(dǎo)致蝸殼內(nèi)較大的流動(dòng)損失。