數值數值解 的英文怎麼說
中文拼音 [shǔzhíshǔzhíjiě]
數值數值解
英文
numerical solution-
For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field
因此,對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此,本文從測井地質的角度,針對當前裂縫性儲層測井地質解釋與評價的現狀,在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上,利用分形分維方法和技術,通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ ( fa )與m指數的理論推導,根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜,則其分維值d _ ( fa )越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵,提出了改進的基於盒維數的測井曲線網格覆蓋法,編程計算了裂縫性儲層段常規測井曲線(如聲波和電阻率曲線)上分形分維值及其m指數值,進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究,效果十分理想: 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪,採用儲層分維值分類技術統計分析這些參數變化的規律,並結合qx油田l區塊儲層類型經驗判別圖版,從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。Structure of admissible lattice and stabilizer of module of affine lie algebra
帶三角分解李代數的賦值模The numerical method for the inverse problem of second - dimensional advection - dispersion - reaction equations is discussed in the article
摘要討論了一類二維對流反應擴散方程反問題的數值解法。The equation must be solved numerically or graphically.
這一方程只能用數值或圖解法來解。Crack tip damage and crazing in polymers under loading
聚合物驅油藏數值試井解釋方法研究Links to topics that explain how to enter array, boolean, numeric, string, and object data
指向特定主題的鏈接,這些主題解釋如何輸入數組、布爾值、數值、字元串和對象數據。3 ) the dynamic responses are studied primarily when the normal incident waves from the lateral boundary are rayleigh surface waves. the results of the dynamic response and the spatial waveforms are given. through comparing the numerical solutions with the analytical solutions of one - phase media, the validity of the corresponding program is proved
初步分析了基於單相介質理論的rayleigh面波從側邊界垂直入射時的動力響應問題,給出了動力響應結果和rayleigh面波的空間波形,通過比較單相介質數值解與解析解兩種方法的分析結果來檢驗程序的正確性。Cannot be interpreted as character or numeric data
不能被解釋為字元或數值數據。The boundary conditions considered may be assumed to be on simple supports with torsional springs at both ends, which is an appropriate assumption to the real constraints
利用邊界條件得到系統的頻率方程,通過數值方法解出系統的前兩階固有頻率隨軸向速度變化的情況,並導出了系統的前兩階復模態函數。General pkm has no analytic positive solutions, which mirrors in the analysis of kinematic and dynamic. jacobian matrix can not be gained ; when solving the problem with the digital algorithm of gauss - elimination, the coefficient matrix of linear equations group is high degree illness
一般並聯機構沒有解析正解,反映在運動和動力學分析過程中為無法求得雅可比矩陣;當採用高斯消去法的數值解法解雅可比矩陣的方程組或求逆時會發現系數矩陣是高度病態的。The numerical solution would be a good approximation of the original solution restricted in the computational domain
將該計算結果作為原問題在有界計算區域上的數值近似解。The finite element method ( fe '. i ) is adopted to analyze the effects of the numbers of coil turns, current intensity and current frequency upon the rate of joule heat generation in details. the thermo - radiation analytical countermeasures of various types are adopted to carry out the numerical analysis of the effects of the crucible with different shapes and sizes and the blind holes with different depths opened in the tops of crucibles as well as coil positions upon the thermal field distribution whereby solving the main problem of field the thermo - field design of the induction - heating sic crystal growth system. a new combination idea of the thermo - field design obtained by means of the united design of the thermo - insulator and blind holes has been presented
採用有限元分析方法對線圈匝數、電流強度、電流頻率等對焦耳熱產生速率的影響進行了詳細的分析討論;採用不同的熱輻射分析策略,對不同坩堝形狀、坩堝頂部開設不同深度的盲孔以及線圈的位置等對熱場分佈的影響進行了數值分析,解決了感應加熱碳化硅晶體生長系統熱場設計的主要問題,提出了通過絕熱層與盲孔的聯合設計獲得所需熱場設計的思路,給出了根據軸向溫度梯度的波動對線圈位置實行動態調節以控制熱場的理論依據。The research work focuses on the following four main investigations : 1. theory of fluid system design for adjustable linear oil damper by use of dynamic mathematical models and dynamic - parameter - compensat ing method, the first research of this item has established the generalized optimiz - - ation mathematical model of the fluid system of an adjustable linear oil damper ; by use of the mechanical generalized optimization theory and platform, the first research has also made a multi - objective and overall - performance optimal design to the fluid system which gives the damper both the best damping performances and the best economic capacities ; by modeling the whole damper and analyzing it by numerical method, the second research of this item has solved the problem of the damper ' s dynamical damping characteristics calculation, simulation and analysis
主要涉及以下四個方面的內容: 1 、可調式線性油壓減振器阻尼系統的設計理論採用動態數學模型和動態參數補償的方法對可調式線性油壓減振器的阻尼系統進行了廣義優化設計建模;運用機械廣義優化設計理論和平臺對可調式線性油壓減振器的阻尼系統進行了多目標、全性能的優化,實現了其技術性能和經濟性能的綜合優化設計;通過對整個油壓減振器進行建模與數值分析,解決了工程上對多級擬合線性油壓減振器的阻尼性能進行求解、對其動態特性進行分析的難點。Nonlinear operator theorem is now a focus in nonlinear theorem. the study of the ergodic theory for semitopologocal semigroups of nonlinear operators began in the middle of 1970 ' s. it got great development because it was widely used in many problems, such as the numerical solution of differentiable equation, the existence theory of positive solution, contral theory and optimization
非線性運算元理論是非線性理論中的熱門話題,它的研究始於上世紀七十年代中期,由於它被廣泛的應用於微分方程的數值解、正解的存在性理論、控制論以及最優化等問題中,因而得到了很大的發展。In the wrscs, the self - consistent model is used to describe the complex configurations of the particulate composite and the temperature field is solved by weighted residual collocation method with some proper simplifications. this method provides a more efficient way of setting up the algebraic equations corresponding to the governing differential equations. the prediction formula for the effective thermal conductivity of the composite is obtained
權殘自洽方法可以用於描述不同形狀夾雜的復合材料的微觀結構,通過對不同幾何形狀角點做適當的圓弧化處理,採用加權殘值數值計算方法的配點法將求解微分控制方程變為求解線性方程組,進而得到任意形狀夾雜內部的溫度場,建立含不規則形狀夾雜的復合材料有效熱導率的預測公式。In order to improve the accuracy and efficiency of numerical prediction, a semi - adaptive and layer - patch refinement method based on the idea of adaptive mesh refinement ( amr ) is proposed and applied to the numerical simulation of wind flow around buildings based on the pressure correction iterative algorithm
為提高數值模擬解的精度,將適應性網格局部加密( amr )的思想應用到採用壓力校正迭代演算法的建築風場模擬中,並提出了一種半自適應的層塊網格加密方法。In this thesis, the combination of photoelastic and numerical methods is used to study the two - dimensional elastic contact problems
本文利用光彈性-數值組合解法對平面彈性接觸問題進行了研究。The comparisons of analytical solutions of the model with numerical simulations of the nnlse show that the model is of excellent accuracy in the case of strong nonlocality and is still valid even if the characteristic length of the material response function approaches about three times of the total spatial extent occupied by the two beams
數值解與解析解的比較結果顯示:在強非局域條件下我們所獲得的nnlse的簡化方程是十分精確合理的;當介質響應函數的特徵寬度約為光束所佔空間尺度的3倍時,我們推導的簡化方程依然適用。The characteristic of this model is : a new interface edge singular element model is derived based on the numerical fundamental solutions obtained from the finite element eigensolutions method
該模型的獨特之處在於:基於有限元特徵法得到的奇異性場數值特徵解建立了一種新型界面端奇異單元。The linearity mode of pcss can be modeled in pspice using a time - varying resistance, the non - linearity mode only can be realized using numerical analysis
線性工作模式下的光導開關可以用pspice中的非線性電阻模型實現;非線性工作模式的物理機制尚未有公認結論,根據現階段研究成果,須通過數值方法解方程組實現電路的模擬。分享友人