有限差分法 的英文怎麼說

中文拼音 [yǒuxiànchāfēnfǎ]
有限差分法 英文
analysis by finite differences
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 法 : 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...
  • 有限 : limited; restricted; finite; a little; not much
  1. We will say that a finite-difference method is convergent if this condition is satisfied.

    若滿足了這個條件，我們就說有限差分法是收斂的。
  2. Finite differential approach to do schr dinger equation

    用有限差分法解薛定諤方程
  3. A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time

    本文將一種高效率的數值計算方法? ?多重網格法引入三維靜電場分佈的計算，多重網格法利用限制和延拓可迅速求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法程序，驗算了靜電同心球模型的三維場分佈.通過與目前在場計算中常用的有限差分法進行比較，可以看出多重網格法的計算效率和計算精度優于有限差分法.本文表明利用多重網格法計算三維場大大提高了場分佈的計算效率，縮短了計算時間，因此為后續計算打下了良好的基礎
  4. On the assumption that a cabin and a horn antenna were under the bottom of an airplane, fdtd method was applied to analyze the antenna patterns which are generally affected by the body of the airplane

    摘要假定飛機腹部加裝了某一形狀的炮艙和矩形喇叭天線，用時域有限差分法（ fdtd ）分析了這樣的外形對天線輻射特性的影響。
  5. The spectrum evolution of the femtosecond laser pulse in a three - level organic molecular medium ( 4, 4 ' - bis ( dimethylamino ) stilbene ) is studied theoretically by solving the maxwell - bloch equations using an iterative predictor - corrector finite - difference time - domain method

    摘要通過採用預估校正的時域有限差分法求解麥克斯韋布洛赫方程，我們研究了飛秒激光脈沖在三能級有機分子（ 4 ， 4 ' -二甲氨基二苯乙烯分子）介質中傳播時脈沖的頻譜演化情況。
  6. The subregion with pure dielectric layers is analyzed by mol and the fast fourier transform ( fft ) is introduced to reduce the computing time, while the subregion with conductors is analyzed by fdfd to take advantage fully the superiorities of these two methods

    通過在純介質區域使用直線法，導體所在區域使用有限差分法分別進行求解，充分發揮兩種方法各自的優越性。由於在純介質區域中使用了直線法求解，因此該演算法具有計算時間與介質層厚度無關的突出優越性。
  7. In this paper, researches based on one - - dimen - sional photonic cystal and its app1ications are developed. in theory, the finite - - difference time - - domain ( fdtd ) method is re - searched

    在理論工作中，研究了時域有限差分法理論，利用時域有限差分法建立了研究一維光子晶體能帶結構的模型。
  8. ( 3 ) temperature field and residual capacity of reinforced concrete member after fire studied by the numbers, various boundary conditions of heat exchange equation and the solutions of them given an account, the formulae of the residual capacity of the members after fire established, the program of temperature field programmed on the basic of finite difference algorithm, a case given to demonstrate

    （ 3 ）對火災后構件溫度場的分佈和剩餘承載力的計算進行了系統地分析和研究。討論了熱傳導方程的各種邊界條件及相應的解法，建立了不同構件的剩餘承載力計算公式，並結合工程實例用有限差分法編制了相應的溫度場計算程序，與實例吻合良好。
  9. In this paper the fourier finite - difference technique is used for migration of phased - array ground - penetrating radar real pgpr data in 2d media

    本文利用傅里葉有限差分法對相控陣探地雷達樣機採集的實測數據進行偏移歸位。
  10. The research of this dissertation is focused on how to solve the 3 - dimensional compressible navier - stokes equations by the implicit finite difference algorithm and to simulate numerically the unsteady subsonic and transonic viscous flows around rigid and elastic wings. on the base of them the aeroelastic characterictics of an elastic wing have been studied

    本文的主要工作是用隱式有限差分法求解三維非定常紊流n - s方程組，數值模擬剛性機翼及彈性機翼的亞、跨、超音速定常及非定常粘性繞流，並在此基礎上研究了彈性機翼的氣動彈性問題。
  11. In this paper this problem is calculated by using finite volume method that prouduce though finite difference method and finite element method, and obtained the velocity and pressure distribution, through the compare between numerical result and model experiment result, there is very good inosculation

    本文利用有限差分法和有限元法所派生出的有限體積法對其進行數值計算，求解出計算區域的速度及壓力分佈，數值計算結果與模型試驗結果吻合較好。
  12. Introduction and analysis of fdtd programs on internet

    網際網路上時域有限差分法程序分析
  13. The topic of this paper originates from the national nature science fund " fdtd analysis and design of microwave active integrated circuits ". an analysis of microwave active circuits using fdtd method with the emphasis on the several methods with which to simulate the active devices in the microwave circuits is studied in details in this paper. and some practical electromagnetic problems are analyzed with these methods

    本論文題目來源於自然科學基金「微波有源集成電路的fdtd模擬與設計」 ，研究了時域有限差分法對微波有源電路的分析，主要研究了微波電路中各種微波器件進行fdtd模擬時的幾種處理方法，並採用這幾種方法分析了幾個實際的電磁問題。
  14. Generally, the skew bridge ' s calculation theories can be divided into three types : the category 1 is the plank theories method, such as the finite difference method, the finite element method and the finite strip method, etc ; the category 2 is the beam theories, such as the grid beam theories, the general grid theories, the rigid cross - beam method, the elastically - supported continuous beam method and the bar system analytical method, etc ; the category 3 is the practical method, such as the g - m revising method, the grid - beam simple method and ghali form coefficient method, etc

    目前關于斜梁橋的計算理論和方法概括起來，大致可以分為三類：第一類為板理論方法，如有限差分法、變分法、有限單元法、有限條法等；第二類為梁理論法，如格構梁理論、一般格構理論、剛性橫梁法、彈性支承連續法、桿件結構的分析方法；第三類為實用計演算法，荷載橫向分佈的計算方法如g ? m修正法、格構梁的簡易法、 ghali表格系數法等。
  15. According to the result of analysis and the fabricating technique of our lab, we designed the parameters of oversized rib waveguide and devices on the polymer / silicon material and simulated the behaviour of the devices by using the bpm method simulation soft named " beamprop "

    同時我們利用熱傳導學中的傳導方程和有限差分法對熱電極作用下不同材料結構中的熱場分佈情況作出了分析。利用實驗室現有的beamprop軟體對器件工作情況進行了詳細的模擬，優化了各項設計參數。
  16. Finite difference method on double parameter elastic foundation board

    雙參數彈性地基上矩形板的有限差分法
  17. In chapter 2, the first and the second section give explicit explanations of how to use split - step fourier transformation ( ssft ) algorithm and finite - difference methods to solve nonlinear equation. a code table, in which a list of normalized transmission formula is included, is given to facilitate programming

    第二章，前兩節詳細介紹了如何用分步傅里葉變換演算法和有限差分法實際求解非線性方程，並給出了求解光束、脈沖及脈沖光束的歸一化方程編碼表，供編程參考。
  18. The - two - equation turbulence model and the control - volume integration method and simplest algorithm were employed to simulate the three dimensional, isothermal, incompressible, rectangular two - impinging - jet on a flat plate

    本文採用-紊流模式，使用控制體積積分之有限差分法及simplest計算程序，進行三維、恆溫、不可壓縮、矩形雙噴射撞擊流場之數值模擬。
  19. A simplified set of equations for analysis of the filling. finite difference methods are used for the pressure calculation. advancement of flow f ront uses a control volume approachand dynamic simulation of the moldfilling process is achieved. other is wetting out process which is the most critical stage in rtm. this stage is a typical porous media flow problem

    從粘性流體力學的質量和動量方程出發，建立了描述充模流動過程的數學模型，利用有限差分法求解壓力方程，並利用控制體積法跟蹤流體前沿；第二部分是充模流動的主體部分，屬于典型的多孔介質的流動問題。
  20. On these bases, the author combined the method of analytic function, finite difference and numerical approximate in the optimizing design of valve train cam profile, and developed a special software with the exclusive purpose in the valve train cam profile design

    在此基礎上，採用解析函數與有限差分法及數值逼近相結合的方法對配氣凸輪型線進行了優化設計，開發出了用於配氣凸輪型線設計的專用軟體。
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