耦合管 的英文怎麼說
中文拼音 [ǒugěguǎn]
耦合管
英文
coupling tube-
Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping
本文的主要內容如下： 1 ）對翅片管蒸發器結構特點進行分析，選取適當的微元控制體，就干、濕和霜工況下對每個微元分別進行傳熱傳質分析，基於經驗關系式確定霜的有關參數，對于霜工況下的霜生長建立模型，經適當假設，運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型，為系統模擬奠定基礎； 2 ）對蒸發在大擾動下的開、停機過程，運用動態集中參數模型進行分析和計算，為更好地描述製冷系統運行的全過程奠定基礎，同時也為製冷系統實現自動控制提供一定的理論基礎； 3 ）對蒸發器正常運行過程，運用動態分佈參數和參數間定量耦合的觀點來分析和計算，為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性； 4 ）編寫翅片管蒸發器動態特性模擬計算程序，可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場，實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。Vortex - induced vibrations of a submarine pipeline and the concomitant scour around the pipeline with close proximity to an erodible seabed are a complex dynamic interaction between current, pipeline and seabed
摘要海底管道渦激振動和管道周圍海床沖刷是海流管道海床之間復雜的動力耦合問題。It shows that the modal shape and mode frequency are highly coupled with the viv response of a marine riser with low mass ratio
該模型的計算結果表明，立管的模態振型、模態頻率與渦激振動響應高度耦合，並且對于低質量比的情況尤為明顯。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。Blank detail specification : ambient rated photocouplers with phototransistor output ; german version en 120004 : 1992
空白詳細規范.與光電晶體管輸出匹配的環境級光電耦合Specification for harmonized system of quality assessment for electronic components - blank detail specification - ambient rated photocouplers with phototransistor output
電子元器件質量評定協調體系規范.空白詳細規范.規定環境下有光電晶體管輸出的光電耦合器Semiconductor devices. harmonized system of quality assessment for electronic components. ambient rated photocouplers with phototransistor output. blank detail specification
半導體器件.電子器件質量評估協調體系.帶光電晶體管輸出的特定環境溫度光電耦合器.空白詳細規范The point of common coupling ( pcc ) is a bus which connects the customer and utility. the research of harmonics and its components at pcc is a valid way to distinguish the responsibility between customer and utility and to manage the harmonic producer
公共耦合節點（ pcc ）是聯繫系統和用戶之間的那條母線，研究公共耦合節點處的諧波含量及其中的諧波成分是明確用戶和系統責任所在以及管理產生諧波用戶的一個行之有效的方法。So the chanmical properties and the effect of the timbering form, foundation modulus and stiffen coefficient of the pipelines under static loads were studied, which provided the research basic for the chanmical properties of the pipelines under dynamical loads. the mutual effect of the pipelines and the soil under the dynamical loads is belonging to a coupling system
管道與土體在動力下的相互作用是一個耦合系統問題，本文從荷載、土體、管-土整體三個方面深入探討了動力荷載下管-土耦合系統的基本特徵：隨機性、動態變化性、耦合性、非線性等。Calculation for a coupling coefficient of two modulation cavities in a relativistic klystron oscillator
相對論速調管振蕩器中兩個調制腔耦合系數的計算The coupling from the pulse jet in the nozzle to the unsteady flow in the tube was discussed. and the relations between the parameters of gas charge and discharge, structure, working, flowing in tube and ideal cooling efficiency were established. the theory foundation of the influence of pulse jet on the flowing in the tube and characteristic would be built
探討了脈動射流與管內非定常流動的耦合問題，建立了脈動射流有關參數如進、排氣參數、結構參數、運行參數等和振蕩管內流動參數及理想製冷效率之間的普遍聯系，為研究脈動射流參數對振蕩管內流動及其性能的影響打下了理論基礎。Design and simulate of the single stage common emitter amplifier
單級阻容耦合晶體管放大器電路設計與模擬Ships and marine technology - fittings for use with gasketed mechanical couplings used in piping applications - performance specification
船舶與海上技術.管道設施中使用的帶密封襯墊的機械耦合配件.性能規范Experimental research on matching of compressor and cold head in stirling - pulse tube cryocooler
斯特林型脈沖管製冷機中壓縮機與冷指耦合實驗研究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。Numerical simulation for soil hydrothermal coupling temperature field around underground pipelines
埋地管道周圍土壤水熱耦合溫度場的數值模擬Based on it, a new kind of helix slow - wave structure named elliptical helix slow - wave structure used in helix traveling wave tubes has been detailedly investigated. by studying the rf characteristics of this slow - wave structure, it ’ s found that higher operation frequency and interaction impedance will be obtained by increasing the eccentricity of helix or decreasing it of the shield. meanwhile, great potential of improving system bandwidth has also been found if the eccentricity of helix or shield or the two are properly choosed
本文對近幾十年大功率行波管的研究進展進行了簡單討論，並在此基礎上研究了一種可應用於螺旋線行波管的新型的螺旋線慢波結構，即橢圓螺旋線慢波結構，通過對該螺旋線高頻特性進行詳細分析，我們初步認為，選擇適當的螺旋線和屏蔽筒離心率，可以提高系統工作頻率，增加系統耦合阻抗，並且具有改善系統帶寬的潛力。Balanced valve coupler
平衡式電子管耦合電路A novel parallel - serial type cttfc ( combined two - transistor forward converter ) with coupled inductor is present in this paper, and the performance of three parallel - serial type cttfcs is studied and compared. the performance of cttfc with coupled inductor is similar to the other two cttfcs while coupling coefficient is less than one and the converter working ccm ( continuous current mode ), and input - to - output voltage gain increase one times while coupling coefficient is one
本文提出了一種耦合電感並?串型雙管正激組合變換器，並對三種並?串型組合變換器的特性作了比較：耦合系數小於1且耦合線圈電流連續時，三種並?串型組合變換器特性相類似：耦合系數為1時，組合變換器輸入輸出電壓增益增大一倍。F19 coupler s. s. tube
19不銹鋼耦合管分享友人