無旋流模型 的英文怎麼說

中文拼音 [wúxuánliúmóxíng]
無旋流模型 英文
irrotational flow model
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 旋 : 旋Ⅰ動詞1 （旋轉） whirl 2 （用車床切削或用刀子轉著圈地削） turn sth on a lathe; lathe; pare Ⅱ名詞...
  • 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...
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 模型 : 1 （仿製實物） model; pattern 2 （制砂型的工具） mould; pattern3 （模子） model set; mould patter...
  1. This paper introduces the operation principle, structures and main characters of three - product dense medium cyclone, and the effect of its structural parameters on the results of coal separation, makes out the superiorities of the coal separation technology by way of 3nwx three - product dense medium cyclone with non - pressured feeding, at the last, points out that the further research should is to establish mathematical model for optimizing the structural parameters of three - product dense medium cyclone

    摘要介紹了三產品重介質旋流器的工作原理、結構、主要特點以及結構參數對選煤效果的影響，說明了3nwx型無壓給料三產品旋流器選煤技術的優越性，並指出今後應建立優化旋流器結構參數的數學模型。
  2. A mathematic model of the motor is builded and emulated through matlab. the low - speed and constant - torque, high - speed and constant - power state is analyzed and researched, also the software approach of simulation to the driver has been done, a digital signal processor tms320lf2407 is developed successfully to control the perm square - wave bldcm driving airscrew of solar powered unmanned engine. it is useful to the further study

    在matlab下建立了電機的數學模型，通過計算機模擬，驗證了數學模型的正確性，同時在理論上對低速恆轉矩高速恆功率運行進行了分析與研究，提出了一種用模糊控制的方法實現恆功率控制，並對驅動器進行了系統模擬，成功的研製了以數字信號處理控制器tms320lf2407為控制核心的驅動器，控制無刷直流電動機驅動太陽能無人飛機的螺旋槳，為後面繼續研究工作提供了參考。
  3. 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。
  4. But for real microfiltration, the distribution of shear stress on the membrane of the module with outside helical flow would have benefit to make smaller number of particles deposit on the membrane. ( 2 ) by means of orthogonal test and regression method, four new models, trans - membrane pressure model, flux model, trans - module pressure drop model, and efficiency model, were established, which roundly describe the performance of outside helical mf by depicting the flux, energy loss, and handling capacity simultaneously

    （ 2 ）採用正交回歸實驗，在無顆粒沉積的理想情況下，建立基於層流數值解的膜器跨膜壓力損失模型、過濾通量模型、過膜器的壓力損失模型和膜器過濾效率模型，首次從通量、能量損失及膜器對料液的處理能力等三個方面，更全面地對外旋流方式下的微濾過程進行了描述。
  5. In brushless excitation system, rotating rectifier is likely to occur several faults. but there is not clear linearity relation between the cause of fault and corresponding symptom. and it is difficult to describe their relation with mathematics model

    在無刷勵磁系統中旋轉整流器可能出現各種故障，但故障原因和相應的癥狀之間往往沒有明確的線性關系，也就很難距歷g洲精確的數學模型來描述。
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