邊界外流動 的英文怎麼說

中文拼音 [biānjièwàiliúdòng]
邊界外流動 英文
flow outside boundary
  • 邊 : 邊Ⅰ名詞1 （幾何圖形上夾成角的直線或圍成多邊形的線段） side; section 2 （邊緣） edge; margin; oute...
  • 界 : 名詞1 （相交的地方; 劃分的界限） boundary 2 （一定的范圍） scope; extent 3 （按職業、工作或性別等...
  • 外 : Ⅰ名詞1 （外面） outside; external side 2 （外國） foreign country 3 （以外） besides; beyond; in ...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 邊界 : boundary; frontier; border; borderline; edge range line; periphery
  • 流動 : 1. （液體或氣體移動） flow; run; circulate 2. （經常變換位置） going from place to place; on the move; mobile
  1. As the world economy goes to reginonalization, collectivization, the district economy is be coming more and more important in the world economy. the members of all the district economy organization make the inner - reginal trade, the movement of elements, the speed of economy increasing constantly because of the advantages of arens, resources and mutual supplements of economy structures, meantime, the members, who is not in the exclusivism andtrade protectionism, so china must make strong economic relationship between the countries ane areas nearby in order to develop the economy stably and taking eonomic cooperation and join the system of inter - reginal economy cooperation

    隨著世界經濟呈現出區域化、集團化的趨勢，區域經濟圈在世界經濟中所佔的地位也在逐步提高，各區域經濟組織成員由於地緣、資源優勢、經濟結構互補等原因，使得區域內部的貿易、要素流動、經濟增長速度不斷增加，同時，對于區域經濟組織外的非成員則不可避免地造成排外主義及貿易保護主義。所以，對中國而言，為促進經濟的持續穩定增長，就必須加強與周邊國家及地區之間的經濟往來，同時要進行全方位、多層次的區域性經濟合作，進而參與到國際區域經濟合作的體系中。
  2. In recent years, plentiful and substantial fruits achieved by the lb method in simulations of hydraulics, multiphase flows, flows in porous media and heat transfer as well as magnetohydrodynamics, have revealed a broad perspective of application of this method, it will become a powerful competitor to the conventional approaches. in order to absorb the recent achievement in theory and application of the lb method, explore new ways in hydraulic computation to promote the development of practice, some work is car ried out in this thesis, as following : advances in the theory research and application, deductive process of the d2q9 model and some other commonly used models of the lb method are summarized. based on the hydrodynamic and general boundary conditions, a new joint boundary condition is presented, it integrates advantage of the two conditions above and obtains very good results in dealing with all kinds of boundaries of flow fields

    為了消化和吸收近年來lb方法在理論和應用方面的新成果，探索在水力計算方面的新途徑以促進lb方法實用化的發展，本文進行了下列研究工作：綜述了lb方法在理論研究和實際應用方面的新進展，以及d2q9模型的推導過程和其他一些常用的模型；在水動力邊界條件和通用邊界條件的基礎上提出了一種新的聯合邊界條件方法，它綜合了上述兩種邊界條件的優點，在流場的各種邊界處理中取得了非常好的效果，經過模塊化的處理以後這種邊界條件具有更好的實用性；針對均勻網格的lb方法計算效率較低的不足，提出了雙重網格的latticeboltzmann方法，通過二維poiseulle流動、后臺階流動和渠道方槽流動三個算例的模擬，證明這種方法能夠明顯地提高流場模擬的計算效率；此外，根據復雜區域流場的特徵提出了latticeboltzmann方法的分塊-耦合演算法，利用lb方法的計算特性實現塊與塊之間的數據交換，充分利用計算資源提高計算效率，通過對「 t 」型、 「十」型和「 x 」型分岔管道流場的模擬，展示了這種演算法的特徵和優點，以及它所具有的應用前景。
  3. The interaction between international trade and foreign direct investment ( fdi ) is one of the important issues capturing the attention from economists worldwide. there are many literatures on the issue up to present, which evidently show two drawbacks, one is that the emphasis of the most analyses is placed on the home countries of fdi, and the other is that even the emphasis is on the host countries, more research is on the relationship between fdi and the economic development but fdi inflows and foreign trade

    國際貿易與國際直接投資（ fdi ）之間的互動關系，歷來是國際經濟學界關注的一個重要問題，迄止目前，關于這個問題的研究文獻可謂汗牛充棟，但綜觀各種文獻，可以發現兩個明顯的不足：一個是研究問題的角度，主要放在fdi流出國一邊，而從流入國一邊出發來考察這個問題的研究，則較少；另一個是，即使從fdi流入國的角度考察，也多側重於研究fdi流入與經濟發展之間的關系，而考察fdi流入與外貿關系的研究，則較少。
  4. Beyond the boundary layer, the motion is highly irregular.

    超出邊界層以外，流體的流動非常沒有規律。
  5. In this condition heat convection inside and outside of tube are coupled. coefficient of convective heat transfer inside and outside of tube gotten through such way compare with coefficient of convective heat transfer inside and outside of tube gotten through by electricity. for comparability between this two condition, the average heat flux on the tube must be equal for this two condition

    這種情況下管內外對流換熱是藕合的，得到的管內外對流換熱系數分別與電加熱管道壁面的邊界條件下管內和管外流動的對流換熱系數相對比，為了使他們具有可比性，我們規定在這兩種邊界條件下通過管子的平均熱流密度相等。
  6. In order to predict hydrodynamic characteristics a computational system is developed including determination of the pressure distribution on a wing section by use of the conformal mapping method and panel method respectively and of the flow in boundary layer according to the thin shear layer approximation ( tsl ) for navier - stokes equation approach. the wing sections of naca4412 and naca0012 are applied to test the computational system. the numerical inspection shows that the panel method with better precision and the momentum and the displacement thickness of boundary layer can be used to complete this calculation

    本文分別用守屋的保角變換法和基於源匯渦分佈的面元法，建立了計算槳葉表面壓力分佈的數學模型；應用納維-斯托克方程的薄層近似理論模式和有限差分數值方法，建立了計算機翼表面邊界層內部流動的數學模型；應用槳葉表面邊界層內部粘性流動和外部勢流流動在邊界上的匹配演算法，建立了槳葉表面二相流流動的計算方法和相應的計算機程序。
  7. Artificial periodic disturbances are introduced to the outer field of turbulent boundary layer in an closed - circuit open water channel. statistical method is employed for analyzing the velocity - fluctuation - time - series. the effect of the disturbance to turbulent structure in boundary layer is studied

    在開口式循環水槽底部湍流邊界層外區中引入周期性擾動，對湍流場的速度脈動時間序列信號進行了統計分析，研究了湍流邊界層中周期性人工擾動對湍流結構的影響，結果表明高頻擾動的湍流中she - leveque簡稱sl湍流層次相似律成立。
  8. However, when the applied bias voltage is located within negative slope regions of u - i curve, the superlattice will undergo a very fast dynamic process, changing from one stable state to another stable state. the superlattice exhibits temporal current oscillations in the negative differential conductivity region at fixed d. c

    當外加電壓使電流處于正微分電導區變動時，超晶格的高低電場疇之間的疇邊界不發生移動，只是相應的電場強度作些調整；當外加電壓使電流處于負阻區域時，超晶格將經歷一個穩態到另外一個穩態的動力學轉變。
  9. Meanwhile, numerical computation of aerodynamics is widely applied with the progress of computer, large quantities of relative paper has been presented. but at present, the relative literature about turbulence characteristics of plural vehicles running in row and passing maneuvers is very limited. pointing to the above difficulty, in this paper, numerical computation of turbulent - velocity field is studied while a sedan exceeding a tractor - trailer truck

    本論文在對某國產轎車單車外流場的模擬地面邊界層、車輪轉動和側向風載荷研究基礎上，以及兩輛轎車並列行駛、同向超車的穩態研究的基礎上，選取了兩種笛卡爾網格方案和四面體混合網格方案，開展某國產轎車超過某大型運輸車的數值模擬研究。
  10. This dissertation has on the research and design of a micro turbine engine as background and it is for the purpose of comprehending viscous flow behaviors in micro scaled conditions and that in the mini - turbine cascades. a mini wind tunnel is designed and set up which also can be used in other micro flow experiments. on the basis of this mini wind tunnel, three mini flow experiments, including micro jet experiment, micro boundary layer experiment and mini - turbine cascades experiment, have been carried out

    本文以某型微型渦輪噴氣發動機研製為背景，以認識微尺度下粘性流體流動狀態及其機理和微渦輪葉柵通道內部流動特性為目的，設計並搭建了除本實驗外還可供其他流體力學實驗使用的微型風洞，並在該微型風洞基礎上進行了微尺度射流實驗、微尺度壁面邊界層實驗和微尺度渦輪葉柵實驗。
  11. By means of wide investigation, instruments development, a series of model experiments and relative theory analysis, following results are obtained in river model time scale distortion ratio, model roughening, inflow and outflow controlling methods and equipment, new water level and velocity measuring technique, model automatic measuring and controlling system : ( 1 ) with the aid of configuration software, a large scale river model automatic measuring and controlling system is developed, realizing river model automatically controlling and basic hydraulic parameters automatically measuring

    本文通過廣泛調研、儀器研製、系列模型試驗和相關的理論分析，在河工模型時間變態率控制、模型加糙、出入流檢測方法和設備、水位流速測量新技術、模型自動測控系統等方面取得了下列成果： （ 1 ）應用工控組態軟體技術，開發了一套大型河工模型自動測控系統，實現了模型內外邊界的自動控制和基本水力參數的自動量測。
  12. The method of generating elements and nodes automatically by reading coordinate data on surface of bus body is introduced and realized to discrete the topology space of three - dimensional turbulent flow field around buses

    客車周圍流場三維湍流數值模擬的空間離散化研究實現了由車身外表面離散點坐標數據文件自動剖分生成單元、節點和邊界條件的方法。
  13. The reason that ec can improve the competitive ability of firms lies in the fact that, the cost of firms can relatively contracted, and the firms have the competitive advantages of enlarging without boundary. the relatively contracting of firms cost means, the effect of diminishing of managerial costs can simultaneously occurred in the fields of production costs, marginal costs, and transaction costs, with the results that the barriers of competition was founded because of the higher transaction costs of provision regarding to the businessmen of productions and services, which are caused by the reduction of production costs rendered by higher productivity, and of managerial costs rendered by the effect of substitution of soft manufactory technology. the relative enlarging of the optimal bound of firms means, that the firms can share managerial costs through the effect of scale of management by the employment of ec, that the scale of firms is enlarged while the managerial costs are cut as a result of the distributing of managerial costs to every liners and proceeds of the firms, which means that the same managerial costs can be used by larger - scaled firms

    電子商務之所以能提高企業競爭力，是因為企業成本相對收縮和企業的無邊界擴張競爭優勢，所謂企業成本相對收縮即邊際成本遞減，這種邊際成本遞減效應可以同時出現在生產成本、管理成本和交易成本三個領域中，電子商務通過提高勞動生產率來降低生產成本，柔性製造技術的替代效應降低了庫存管理成本，與此同時，電子商務減少企業與消費者之間的環節，縮短路徑距離而降低企業內外的交易成本，提高了企業產品和服務分銷商改變供貨方式的交易成本，使之形成企業競爭的壁壘；所謂企業最優邊界的相對擴張，是指由於規模管理效應即電子商務運用信息技術使企業以低信息成本共享管理成本，使企業總體管理成本分攤到各個管理環節和流程中，企業規模擴大而邊際管理成本逐漸下降，相同的管理成本可用於管理更大規模的企業，即隨著電子商務在企業中的應用，企業的最優邊界相對擴張了。
  14. Then, only a given curve satisfied by the conditions of import and outlet of vane wheel as its modular curve will neglect the middle varying processes of in vane wheel, which reflect microscope properties in some degree - flow properties in boundary layer. leading into the velocity - coefficient unifies the boundary layer and eular theory in the design process of vane, which extends the area of selection of vane ' s curves and provides a valuable object function for the optimization design of vane

    那麼，僅憑一條預先給定的滿足葉輪出入口條件的曲線去來作為葉輪的型線，它必將忽略了這種除了葉輪出入口之外的中間變化過程，而這種中間變化在某種程度來說又反映出微觀特性? ?邊界層流動特性；速度系數的引入，它使邊界層理論和歐拉理論在泵的葉輪設計過程中得到統一；它使選擇葉片曲線的域圍拓寬；它也為葉輪的優化設計提供了一個很有參考價值的目標函數。
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