finite-difference approach 中文意思是什麼

finite-difference approach 解釋
差分法
  • finite : adj. 有限的；【語法】限定的；【數學】有窮的，有盡的。n. 〈the finite〉 有限（性）； 〈集合詞〉有限物。adv. -ly ,-ness n.
  • difference : n. 1. 差異，差別。2. 不和，爭論。3. 【數學】差，差額。4. 【邏輯學】特殊性。vt. 〈罕用語〉區別，使有差別。
  • approach : vt 1 向…接近，走近；使接近。2 探討；看待，對待，處理。3 向…接洽[提議]。4 〈美國〉企圖收買。vi 臨...
  1. The transient mathematical equations are addressed for the coupled heat and moisture transfer by taking account of moisture accumulation procedure. an analytical method by means of the transfer function is proposed to predict the transient distributions of temperature and moisture content at different interfaces in walls. a numerical analysis approach based on an efficient finite - difference method is developed to deal with the procedure of coupled heat and moisture transfer in a multilayer wall with nonlinear boundary conditions considered

    建立了考慮濕積累過程的瞬態熱濕耦合模型，在方程中引入了濕積累項；發展了一種傳遞函數解析方法進行墻體內不同剖面處溫度和含濕量的動態預測；首次提出了一種基於有效有限差分法預測非線性邊界條件下多層多孔結構內的傳熱傳濕過程的數值分析方法，求解過程中考慮了瞬態邊界條件，從而避免了通常處理中由於邊界條件設定為常數而給計算帶來的誤差，對于多層結構每一層物性參數的非連續性，則採用了有效的有限差分逼近處理。
  2. The details of the construction and characteristics of the new finite - difference scheme are presented in this thesis, by using both the integration theorem and the taylor expansion theory. it is proved that the new approach has the second - order accuracy on the grids with axis - symmetric voronoi cells and at least has the first - order accuracy in general. according to this character of the scheme and the computational requirements of the finite - difference approach, a striping procedure is involved to decompose the velocity model into variable spatial size grids with a nearly constant tune step preserved

    本文從積分定理和taylor展開兩個角度，詳細分析了基於voronoicell的非規則網格有限差分演算法的構造過程及性質，並且在理論上證明了本文的差分方法的精度與網格形狀的關系：當voronoicell為關于節點的軸對稱圖形時，本文差分方法具有二階精度；在一般的網格上，則至少具有一階精度。
  3. First of all, the algorithm base on the boundary problem of helmholtz equation and finite - difference technique, calculate the field in “ cold ” cavity and disperse the helmholtz equation, as a result of the formula : ax = x. secondly, according to the eigenvalue of matrix theory and applied iterative methods, eigenmode adopt a numerical approach which allows the improved chebyshev polynomial iteration which based on the power method to extract the isolated eigenmode in the spectrum. finally, we resolve the problem of compatibility in software and insert the eigenmode module into the chipic which will have the function of eigenmode analysis

    具體的說: （ 1 ）首先以電磁理論中的亥姆霍茲方程的邊值問題理論和計算電磁學中的有限差分法為基礎，計算冷腔中的場分佈並離散亥姆霍茲方程，得到標準的本徵值問題: ax = x ; （ 2 ）然後根據矩陣理論中的eigenvalue問題和數值計算中的迭代方法，採用改進后的chebyshev多項式，在power迭代法的基礎上對ax = x進行多項式迭代，實現對頻譜中孤立本徵模的萃取; （ 3 ）最後將用fortran語言編制的eigenmode模塊加入到chipic軟體中，解決了eigenmode模塊與chipic主代碼的兼容問題，從而實現了chipic軟體的模式分析功能。
  4. Using finite difference approach to simulate the transient performance of the solar pond, and study the effect of each layer ' s thickness and heat extraction on the temperature distribution, and the evolvement of the temperature profile. 4

    應用有限差分法對太陽池內的瞬態行為進行模擬，研究各層厚度及取熱速率等因素對溫度場的影響，研究溫度場的演變情況等； 4
  5. Convergence study of the finite difference method : a new approach

    差分格式收斂性研究的一種新方法
  6. The model assimilates the latest results in the research and is solved by numerical approach which is called finite - difference equation 。 combined with experimental system, this model simulates the temperature of the water which comes from ground heat exchangers and the round temperature field

    結合實驗系統和傳熱模型，我們對製冷運行中地下換熱器的出水溫度及周圍溫度場分佈進行了模擬分析，並給出了鉆孔的平均傳熱系數的公式。
  7. Transient layer approach was used in finite element method to simulate the temperature difference between the loading liquid and the model internal wall surface, and the results of calculation and test are accordant

    採用過渡層模擬加載液體與模型內表面的溫差，進行有限元計算，計算結果與試驗結果相符。
  8. Study on a finite difference approach to the valuation of insurance liabilities

    求解壽險負債估價問題的有限差分法研究
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