管形流 的英文怎麼說

中文拼音 [guǎnxíngliú]
管形流 英文
stream tube
  • 管 : Ⅰ名詞1 （管子） pipe; tube 2 （吹奏的樂器） wind musical instrument 3 （形狀似管的電器件） valve;...
  • 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...
  1. Cyclosis ( cytoplasmic streaming ) the streaming of cytoplasm in a circular motion around the cell observed in some plants, particularly young sieve tube elements

    胞質環流（胞質運動） ：在一些植物細胞特別是在幼篩管分子中觀察到的細胞質圍繞細胞的環形流動的現象。
  2. This paper study practice of small and medium - sized enterprises ' bpr, using weifang charming hometextile co., 1td as research objiect, using author ' participant practice of bpr as background, combine process manage management, project management, iso9000 quality control system and other modern times manage theories. on the basis of analysis of environment, form stratagem programming scheme, this paper search key process analyse process, form new process. at the same time, with institution reform, human resource mechanism desigm, come into being frondose, executable scheme. and validated in the practise

    論文首先對企業內外部環境進行詳細分析、形成企業戰略規劃方案；根據戰略規劃發展的需要，確定關鍵流程? ?產品開發流程和生產管理流程；對關鍵流程進行分析診斷，確定其存在的問題；形成新的工作流程，輔之以機構重組、人力資源及激勵機制設計，形成具體的、具有可執行性的方案，並在實踐中得到一定的驗證。
  3. The difference between the results, using the fud and copmd schemes respectively for the two - dimensional case, are given

    比較了二維矩形突擴管道流動分別用fud 、 copmd格式計算結果的差異。
  4. Lighting chains ; ballasts for tabular fluorescent lamps

    管形螢光燈鎮流器；
  5. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  6. The following results are obtained : ( 1 ) the flow in rotating helical pipes are affected by dean number, curvature, torsion ( or germano number ), the ratio of the coriolis force to the centrifugal force f number ( or rossby number ) and the geometry of the cross section

    研究結果表明： （ 1 ）旋轉螺旋管道流動特性受dean數、曲率、撓率（或germano數） 、科氏力與離心力之比f數（或rossby數）以及截面的形狀五種因素的影響。
  7. In this dissertation, the pulse jet style, the influence on the shock wave, the flow in the tube and the cooling effect was deeply studied theoretically and experimentally. the influence of the pulse jet style on the forming of shock wave and the shock wave intensity was explored. the initial disconnection style in oscillating tube vented and the initial disconnection breakdown was proposed by different pulse jet style

    本文對脈動射流的型式及其對激波、管內流動及冷效應的影響進行了較系統的理論和實驗研究，主要包括:探討了脈動射流的型式對形成管內激波形成及激波強度的影響，給出了不同脈動射流的型式下振蕩管開口端初始間斷的類型，對初始間斷進行了分解，導出了包含進氣、排氣參數及工質物性參數的管內入射激波馬赫數mj的表達式，給出了管內激波形成的三種原因及其所對應的脈動射流型式和具體的工作狀態。
  8. Employing perturbation method and numerical simulation, we study the flow in rotating helical pipes including different rotations, different cross sections ( circular, elliptical, annular and square cross section ), and different geometrical structures

    採用攝動方法和數值計算方法，研究了處于多種旋轉狀態下、多種截面形狀（圓截面、橢圓截面、環形截面、矩形截面） 、不同幾何結構旋轉螺旋管道流動。
  9. Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed

    本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上，以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面（圓截面、橢圓截面、環形截面、矩形截面）旋轉曲線管道內充分發展流動的流動結構和傳熱特性（包括耦合對流傳熱特性）以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析，詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。
  10. Body ? streamlined flow path minimizes pressure drop. butt weld, venturi or flanged ends provide piping alternatives

    閥體?流線形流道，最大限度減少壓降。對焊、縮喉管或法蘭連接埠幾種可供選擇的連接方式。
  11. By physical and chemical testing and comprehensive analysis, it is suggest that deposited sands and rubber relics lead to local clogging of the pipe, so vortex around the clog lead to erosion abrasion

    通過理化試驗和綜合分析后認為，海水中沉積的泥砂和管內橡膠殘片集結成一體，對傳熱管形成局部阻塞，水流在阻塞物周圍產生渦流，發生沖蝕磨損，造成鈦管泄漏失效。
  12. The effects of the different tripping size were not alike, 20 % tripping annulus was the best size for a pipe flow to obtain fully developed turbulence in the experiment. 8

    不同尺寸的擋環對流動中心處相對湍流強度的影響不同，實驗結果表明， 20擋環是形成充分發展圓管湍流的最佳尺寸。
  13. This research is to eject some compressed air into the dredging pipe to get tri - phase flow in the pipeline, and research the change about the pipe resistance, at the same time, obtain the more effect adding gas method and realize reduction friction and prolong the dredging distance

    本文研究的目的是在一定的漿體流速和漿體濃度下向輸送管道中加入一定量的氣體，在管道中形成三相流，進而探討加氣后管道流動的變化規律，同時確定出比較有效的加氣方案，從而實現減少阻力延長排距的目的。
  14. The flows of pipes in the different conditions with the significant stimulations are solved. the results obtained are analyzed and compared to experimental results referred to

    求解了不同形狀管道，不同來流條件下，非微小激勵情況下的管內流的流場。
  15. Lamp controlgear - part 11 : particular requirements for electronic invertors and convertors for high - frequency operation of cold start tubular discharge lamps neon tubes

    燈的控制裝置第11部分：高頻冷啟動管形放電燈霓紅燈用電子換流器和變頻器的特殊要求
  16. The company mainly produces high - tension and low - tension electric equipment, thyristors electrical machinery soft starter, automatic regulating silicon piles etc. it developed the technology with own patent adopting sun shape heat tube radiators with steam and water separated, and developed the integrated power module unit including thyristors and rectifiers with the technology. the products organization is novel, and it conducts heat rapidly and has solved the difficult problems of heat dissipation in generator excitation and exchange power

    公司主要生產高低壓成套電器低壓動態無功補償裝置晶閘管電機軟啟動自動調壓硅堆等產品。研製開發出了「日」字形汽水分離式熱管散熱，並利用該技術開發了晶閘管整流管一體化功率組件，結構新穎，傳熱迅速，為發電機勵磁交流調功等領域解決了器件散熱難題，產品的各項性能均處于國內外領先水平。
  17. On the other hand, this flow is a typical non - linear model and there exists complicated secondary flow on the cross - section, also, a bifurcation will appear on some conditions. this study is signality in theory and has a broad application future

    另一方面，旋轉曲線管道系統是流體力學非線性的典型模型，在截面上存在形態復雜的二次流動，在某些條件下出現分叉解，深入研究旋轉管道流動，具有重要的理論意義。
  18. Thermal protectors for ballasts for tubular fluorescent lamps

    管形熒光燈鎮流器熱保護裝置；
  19. Ballasts for tubular fluorescent lamps - performance requirements

    管形熒光燈鎮流器.性能要求
  20. In the numerical solution algorithm, the method of characteristics, analytic method and galerkin finite element method ( galerkin - fem ) can be chosen to solve the advective equation, diffusion equations, reaction ( source / sink ) equations, propagation equations and pressure poisson equation, respectively. the developed new algorithm has been verified using analytical solution of circular conduit flow in a reynolds number range of 100 < re < 1 000 and experimental data of the laminar flow over a backward - step facing step. the flow properties are well characterized by this three - dimensional numerical model

    本論文在評述三維粘性流動數學模型已有研究成果的基礎上，著重在數值計算方法的選擇和定解條件的給定對數學模型計算結果的影響進行了研究，並首次提出了求解三維純對流方程的高精度的擬協調單元法，建立了三維低雷諾數re流動的數學模型，並在圓管流動、臺階突擴矩形管道流動中得到驗證和應用。
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