邊界層理論 的英文怎麼說

中文拼音 [biānjiècénglǐlún]
邊界層理論 英文
boundary later theory
  • 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...
  • 層 : i 量詞1 （用於重疊、積累的東西 如樓層、階層、地層） storey; tier; stratum 2 （用於可以分項分步的...
  • 理 : Ⅰ名詞1 （物質組織的條紋） texture; grain （in wood skin etc ） 2 （道理;事理） reason; logic; tru...
  • 論 : 論名詞（記錄孔子及其門徒的言行的「論語」） the analects of confucius
  • 邊界 : boundary; frontier; border; borderline; edge range line; periphery
  • 理論 : theory
  1. By introducing proper stretchy variable and constructing boundary layer function, it concludes n - order approximate solution, and using theory of differential inequality, uniformly validity of asymptotic expansion is proved

    通過引進適當的伸長變量，構造邊界層函數，得到了解的n階近似值，並利用微分不等式理論證明了解的漸近展開式的一致有效性。
  2. In chapter four, according to the analysis on the boundary theory and velocity field of main fluid zone of two - phase fluid pumps, the parameter equations of vane ' s modular curve of centrifugal pump are given, which contact the boundary " layer and eular theory of two - phase fluid pump by the fixing angel of vane as variable and leading into the velocity coefficient a. the results show that, in designing process of vane ' s modular curve of centrifugal pump, the determination of the total shape and parameters relates the flow properties of two - phase fluid and output ability of pump, or the design of the modular curve of centrifugal pump is the kernel of hydraulic design

    第四章依據固液兩相流泵的邊界層理論及對主流區速度場的分析，給出了離心泵葉片型線的參數方程；它是以葉片安裝角為參變數，以引入的速度系數k _ v作為中間因子，將兩相流泵的邊界層理論和歐拉理論聯系起來? ?它說明了這樣一個事實，在離心泵葉片型線的設計過程中，它的整個形態或參數的確定都關繫到兩相流體的流動特性和泵的輸出能力，或者說，離心泵型線的設計是其水力設計的核心。
  3. Around 40 ; the neutral curve obtained by the growth rates of the temperature fluctuation has a ringlike curve separated from the main branch of nachtsheim s calculation by velocity fluctuation at the lower grashof number side ; and its phase velocity is close to the maximum mean velocity where the critical layer of the eigenmode locates. the thermal fluctuation decays rapidly as the nondimensional frequency above 0. 4, so that it means that the coupling effect between instability wave generated by buoyancy fluctuation and velocity waves by invicid instability seems weak enough for their critical layers in the range of the nondimensional frequency

    詳細研究了自然對流邊界層中最早失穩的浮力振型的功率譜波長波速與臨界層位置等基本特徵和它為主導其他振型尚未失穩時按線性理論得到的3種相互獨立振型的振幅分佈。系統地測量了它所對應的溫度和速度漲落的振幅增長規律和中性曲線，實驗結果表明，溫度漲落的中性曲線在低格拉斯霍夫grashof數
  4. Chapter2 is aim at estabilishing a suit of effective methods for wind effect analysises, including the mechanical model, the analytical approach, the experimental technique and the application of experimental results to real tall buildings, which are not only applicable for all the types of high - rise buildings without the limitations in the previous theories, but also conductive to further investigation of the wind - resistant capabilities and dynamic behaviours

    在前人研究的基礎上本文進一步完善了高層建築的抗風理論。第三章系統地討論了大氣邊界層的風洞模擬問題。對大氣邊界層內風的一些特性以及大氣邊界層模擬中的相似準則進行了闡述，對模擬的設備和方法進行了說明。
  5. The project of the experimental and theoretic research on friction reduction by microbubbles for high - speed ships, supported by the national natural science foundation of china ( no. 19772050 ), aims to study the key technology of air - jetting devices and its relevant problems, theoretically predict the law of bubble diffusing in the boundary layer and calculate the friction of the hull

    國家自然科學基金項目「高速氣泡船減阻試驗及理論研究」的目的在於研究高速氣泡船噴氣裝置的關鍵技術及其相關問題，並從理論上預測噴氣氣泡在船底邊界層的擴散規律和計算船體摩擦阻力，為將這一技術應用到實船上提供基礎。
  6. Due to its complexity of the problem, the theories and experiment results obtained are discrepant, and some of them are even contrary one another. started from the influence by movement rules of small cavities and solid particles, the mechanisms of combined effect of cavitation and sand abrasion are study in this thesis from the aspect of the turbulent coherent structure near the wall. first, a dynamic equation is established for a single spherical bubble and single spherical sand under the non - turbulent coherent structure near the wall, and then a dynamic equation established under the turbulent coherent structure near the wall

    首先從理論上推導出在典型湍流邊界層模式的非擬序結構下空泡與固體顆粒的近壁區運動方程，然後推導出湍流近壁擬序結構作用下的空泡與固體顆粒的近壁區運動方程，再將兩種不同條件下的的運動方程進行比較，指出湍流近壁區的擬序結構對空蝕與磨損的發生具有決定性的意義，即正是由於擬序猝發作用的存在，才使得空泡、沙粒對壁面的空蝕與磨損作用得以發生。
  7. According to the feature of oils, the evaporation of crude oils is not controlled by the boundary layer and the prediction equation based on the water evaporation equation is not correct theoretically

    結合原油組分特點，認為過去將原油蒸發當邊界層控制來處理，以及以純水蒸發速率方程為基礎通過修正而建立起的原油蒸發速率方程是缺乏理論根據的。
  8. In this paper, based on my experiments, the mechanism of pneumatic defrosting of air cooler was studied through the application of thermodynamics, heat and mass transfer, classical theory of nucleation, boundary - layer theory, the theory on gas dynamics

    本文在對氣動除霜進行了實驗研究的基礎之上，應用工程熱力學、傳熱傳質學、晶體成核理論、邊界層理論、氣體動力學等有關知識，從系統的觀點出發，探討了氣動除霜的機理。
  9. Thirdly, the conclusions of the two aspect applications are given as follows : the exploration of the application of the evaporation duct prediction to the flux relationship research and evaporation duct predicting shows that based on this predicting method and with microwave refractometer, as sensor, ( 1 ) the dimensionless gradient function of temperature, humidity and refractivity in the flux relationships can be determined with higher precision, ( 2 ) the limitations of conventional observations on the predicting accuracy for evaporation duct can be avoided and the precise prediction for evaporation duct can be obtained with the accurate measurement of refractivity profile within a few meters. the radar performance under given evaporation

    三、對兩個應用問題的討論表明：基於本文發展的蒸發波導預測理論，使用微波折射率儀為傳感器： （ 1 ）開展通量關系研究時，可以用於邊界層溫度、濕度和折射率無量綱梯度函數的精確測定和得到蒸發波導環境預測所需的偽折射率參數化函數關系； （ 2 ）預測蒸蒸發波導環境特性和傳播特性及其應用研究發波導環境時可以避免使用傳統氣海界面要素測量中存在的局限，並用折射率音d面不太高的精確測量結果精確預測蒸發波導環境。
  10. In chapter five, as one of the applications of boundary layer theory on two - phase fluid pump, the calculation process and example analysis in vane design are given and the stability and convergence of algorithms and programs and rules showed in calculation are required

    第五章作為固液兩相流泵的邊界層理論的應用之一，本章給出了它在葉輪設計中應用的計算過程及實例分析。通過實例分析及數值計算，本章得出關于演算法和程序的穩定、收斂性結論以及速度系數在計算中所表現出的規律性。
  11. Cfd analysis and thick boundary layer theoretical calculation on axisymmetric revolution body

    分析及厚邊界層理論計算
  12. Parameters influencing aerodynamic flows and transition and influence of boundary layers on outer potential flow are presented, along with associated stall and drag mechanisms

    而邊界層理論受限於各種流體種類的假設，像是可壓縮性、紊流、維度和熱傳。
  13. In the basis of the references on a centrifugal pump of two - phase fluids from domestic and oversea, its theory of boundary layer is presented and set up and the modular curve equation of vane is received in this paper

    本文在綜合國內外關于固液兩相流離心泵及與之相關文獻的基礎上，首次提出並建立了固液兩相流泵的邊界層理論，給出了葉片型線方程。
  14. Based on the theory of boundary layer and analysis of the velocity field of main flow, the thesis also derives the vane shape equation. in the equation, （ angle of pump vane ） is variable parameter, （ velocity coefficient ） is introduced as medium factor, which connects the theory of boundary layer with the eular theory. it provides a valuable reference for the designation of vane of pump

    基於離心泵葉片邊界層理論和對主流區速度場的分析，給出了離心泵葉片型線參數方程，它以葉片角為變參數，引入速度系數作為中間因子，將邊界層理論和歐拉理論聯系起來，並在離心泵葉輪的設計過程中統一起來，能夠在設計中就根據實際的需要防止或控制過流表面的邊界層的分離。
  15. 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。
  16. New results about the existence of the positive solutions to a singular integral equation are obtained in the form of ( the equation is abbreviated ), t ( 0, 1 ), in the boundary layer theory

    摘要對邊界層理論新結果中出現的一類奇異積分方程（方程式略） ， t （ 0 ， 1 ）進行討論，並得出了上述方程在（ 1 / 2 ， 0 ）上正解存在性的新結果。
  17. The singular ordinary differential equations first arise in the fields of gas dynamics, newtonian fluid mechanics, nuclear physics, the theory of boundary layer, nonlinear optics and so on. it is also one of important areas in the study

    具有奇性的常微分方程問題，最早是在研究核物理、氣體動力學、流體力學、邊界層理論及非線性光學問題中提出的，是微分方程研究中一個十分重要的領域。
  18. Singular boundary value problems for nonlinear ordinary differential equations, which arise in a variety of areas such as mechanics, boundary layer theory, diffusion and reaction equations, biology, ect, become an im - potant topic in ordinary equations fields

    非線性常微分方程奇異邊值問題來源於力學，邊界層理論，反應擴散過程，生物學等應用學科中，是微分方程理論中一個重要的研究課題
  19. The singular ordinary differential equations arise in the fields of gas dynamics, newtonian fluid mechanics, nuclear physics, the theory of boundary layer, nonlinear optics and so on. therefore, it has been considered extensively

    而奇異微分方程是微分方程領域中一個重要的研究課題，由於它不斷出現在各種應用學科中，例如：核物理、氣體動力學、流體力學、邊界層理論、非線性光學等，所以得到了廣泛而深入的研究
  20. Dr. zhu yucai first presented the theory of boundary layer of centrifugal pump and derived the vane shape equation. based on the theory and analysis of references abroad and home on centrifugal pump, the thesis creates a mathematic model of turbulent boundary layer of centrifugal pump

    朱玉才博士首次提出了離心泵邊界層理論並給出了葉片型線方程，本文就是基於朱玉才博士研究工作的基礎上，通過大量分析國內外有關文獻，建立離心泵葉輪湍流邊界層的數學模型。
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