法諾數 的英文怎麼說

中文拼音 [nuòshǔ]
法諾數 英文
fano number
  • : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
  • : Ⅰ動詞(答應; 允許) promise Ⅱ感嘆詞(答應的聲音) yesⅢ名詞(姓氏) a surname
  • : 數副詞(屢次) frequently; repeatedly
  • 法諾 : faneau
  1. We describe the meaning of chaos > future idea of chaotic theory and influence on forecast ; introduce the character of chaotic time series, and point out the problem and shortage of the methods already existed computing character value which are fractal dimension and the largest lyapunov exponent and improve on it ; present the forecast principle of forecast method based on chaotic attractor, and point out the shortage of local field forecast method based on chaotic attractor and bring forward improved on methodo at the same time, we put forward a banausic algorithm and compare two models using practical example

    論述了混飩的含義與混淪理論的未來觀及其對預測的影響;介紹了。混飩時間序列的特徵,指出了己有的計算分形維及最大李雅譜夫指這兩個特徵量的方存在的問題與不足,並對此進行了改進;給出了基於混飩吸引子的預測方的預測原理,指出了常用的基於混燉吸引子預測的局域的不足並給出了改進方,同時,給出了其實用演算,並用實例進行了比較。
  2. Controlling a unified chaotic system by collocating the lyapunov exponents

    用李雅譜夫指配置控制統一混沌系統
  3. The effects of reynolds number, back surface of nozzle, aft - dome configuration and degree of submergence on aft - end internal flow were studied by both cold gas simulation and numerical simulation. it is showed that the separated flow is sensitive to the change of reynolds number and aft - end cavity configuration

    最後,利用冷流模擬與值模擬相結合的方,研究了雷、噴管背壁形狀、后封頭形狀和潛入深度對燃燒室尾部流場的影響,結果表明流動的分離對雷和背壁區幾何邊界的變化很敏感。
  4. The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade

    葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題,本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上,建立了三維、可壓縮紊流的物理模型,得到了通用的求解辦;利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型,計算了冷卻空氣通過這幾種通道時的流動與換熱情況,得到了各種不同情況下計算區域的溫度場、壓力場、速度場;在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響,並整理得到了各種通道形式下,努謝爾和阻力因子與雷的函關系;本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果,通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較,表明了這種新型鮚構的優勢,對于葉片內部通道冷卻結構的設計可以起到指導的作用。
  5. On basis of this solution, the influence of flow to the vibrating pipe is analyzed and the method of obtaining resonant frequency and resonant time are given

    之後,根據此解,對來流雷的影響進行了分析,並給出了求解、分析共振頻率及共振時刻的方
  6. The calculated result is reasonable and meets the engineering requirement for precision, and it also shows that the method is versatile for different water depths and renolds numbers

    計算結果表明,該方對不同水深、雷適應能力強,計算結果合理,滿足工程應用精度的要求。
  7. The method to determine von karman ' s constant with the integral equations was reviewed. the variation of von karman ' s constant in the overlap region was also analysed. a new conclusion was driven, that von karman ' s constant is a function of reynolds number or karman number in the overlap region

    介紹了利用積分方程確定圓管湍流中馮?卡門常的方,並詳細分析了重疊區域中馮?卡門常的變化情況,提出了馮?卡門常在重疊區域中是雷或卡門的新結論。
  8. By use of grid - shaping skill and multi - grid solver, the flow - induced vibration of the fluid - conveying pipe in water is studied. the vibration mechanism of the fluid - conveying pipe in water is analyzed, the lift and drag acting on pipe in water are calculated. the results obtained are analyzed and compared to the experimental data referred to

    首先對水下輸液管道繞流渦激振動的機理進行了分析,然後,利用網格生成技術及多重網格求得了輸液管道在不同來流條件(雷)下的橫向升力系及縱向阻力系,最後對計算結果進行了分析,並將其與已有的間接實驗結果進行了對比。
  9. To investigate the aerodynamic design ideas and concrete methods of high performance low pressure turbine ( lpt ) at low reynolds number condition, a new lpt of high load, large chord and proper velocity distribution was designed

    摘要為了探索高空低雷情況下高性能低壓渦輪部件的氣動設計思路和設計方,通過採用高負荷、大弦長的葉片設計和選擇恰當的葉片表面速度分佈形式設計了一臺新低壓渦輪。
  10. 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學模型已有研究成果的基礎上,著重在值計算方的選擇和定解條件的給定對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,建立了三維低雷re流動的學模型,並在圓管流動、臺階突擴矩形管道流動中得到驗證和應用。
  11. The present results indicate good agreement between the towed plate and the velocity profile methods for all of the surfaces tested

    目前的結果表明良好之間的協議拖走板塊和流速剖面圖方為所有的表面進行測試。試驗對旋轉盤進行了高得多的單位雷
  12. In this paper, the working fluid is air. experimental study of the nine different structure parameters of 3 - d ift with staggered arrangement fins in the reynolds number range of 250 to 30000 is performed to investigate the characteristics of heat transfer and flow friction behavior. analyses and reduces the experimental data by the least square method, obtains the nusselt and fanning friction fitting criterion equations

    本文以空氣為工質,在re 250 30000范圍內對九根具有不同肋形結構尺寸的肋叉排三維內肋管的換熱及流動特性進行了研究,並運用最小二乘分析和處理實驗據,獲得努謝爾特,范寧摩擦系與雷,肋幾何參的準則方程式。
  13. ( 1 ) taking the new br 700 gas turbine which is developed by rolls - royce deutshland as research object, the numerical simulation has been applied to the new structure of rotating disk system with pre - swirl nozzles on the rotating disk with ? turbulence model and with a new hybrid grid

    ( 1 )本文以rrd公司新研製的機種br700為研究對象,採用-湍流模型對帶有預旋的新型旋轉盤腔內的流動進行了值計算。在旋轉盤的計算中提出了一種新的網格剖分方,計算的旋轉雷達到1 . 0 10 ~ 8 。
  14. Based on former work, a finite difference viscous code that uses a high convergence, high accuracy, high resolution lu - sgs - ge implicit scheme and an improved fourth ( fifth ) - order high resolution muscl tvd scheme to integrate the full 3d navier - stokes equations and the low - reynolds number two - equation turbulence model is extended to simulate the flow field inside centrifugal impeller mechanism

    並且在現有工作基礎之上,將基於有限差分方的高收斂率、高精度、高解析度的lu - sgs - ge隱式格式和四(五)階muscltvd格式求解全三維navier - stokes方程和低雷雙方程湍流模型的計算程序推廣到離心葉輪機械內部流場的值求解。
  15. The standard k - e turbulence model was employed in the core region of the cavity. two low reynolds number turbulence models, single equation model and launder and sharma low - reynolds number k - e model, were used in the near wall regions

    在紊流核心區採用標準k -模型,近壁區分別採用單方程模型和launder ? sharma低雷k -模型,採用simple演算,求解並獲得了盤腔中的速度和壓力場、全域的溫度場以及流固界面上的換熱系和努謝爾分佈。
  16. To compare with great deal of experimental data, the results show the improved method could be used as a generalized design methodology of film cooling for turbine blade. predictions of span - wise averaged effectiveness are made with a two - dimensional boundary layer code using the low reynolds number k - two - equation turbulent model

    研究並發展了用低雷k -紊流模型為基礎的氣膜冷卻計算方,將前人針對平板提出的摻混模型推廣應用於渦輪葉片型面,得到了與實驗據符合良好的結果。
  17. Now that you have promised that you would go exercising every day, it is now the time to put your moneyswheresyour mouth is. let ' s go

    既然你已經承要每天去鍛煉,現在是說,採取行動支持你說的時候了。走吧
  18. Now that you have promised that you would go exercising every day, it is now the time to put your money where your mouth is. let ' s go

    既然你已經承要每天去鍛煉,現在是說,採取行動支持你說的時候了。走吧
  19. Spectral method and spectral element method are both used in the present dns. the flow is developed from an initial velocity field whose mean and root mean square values are fitted to the experimental data. the reynolds number of the flow is 2250 based on the mean velocity and the radius of the pipe

    本文在空間離散上採用譜方和譜元的結合,通過在圓管層流速度剖面上疊加隨機擾動作為初始場的方,計算了管長為,平均雷為2250的光滑圓管內的湍流流動,建立了圓管內較低雷下速度場和壓力場的據庫。
  20. In the future, some issues need to be investigated further, which include : enforcement of the stability, raising reynolds number of the flow field being simulated, treatment of curve boundaries as well as further development of application

    以後有待深入研究的問題是增強方的穩定性、提高模擬流場的雷、曲線邊界的處理和實用化的進一步發展。
分享友人