求體積法 的英文怎麼說

中文拼音 [qiútǐjīfǎ]
求體積法 英文
cubature of a quadric
  • 求 : Ⅰ動詞1 （請求; 要求） ask; beg; request; entreat; beseech : 求人幫忙 ask sb a favour; ask a favou...
  • 體 : 體構詞成分。
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  • 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...
  1. It adopts reynolds time - average n - s equation and k - ? turbulence model to calculate the inner 3 - d viscid turbulence flow of centrifugal pump. in the unstructured grid, the governing equations are discretized with finite volume method based on finite element method. then the pressure correction method is used to carry out numerical calculation

    而後採用基於雷諾時均n - s方程與標準-湍流模型來求解離心泵葉輪內三維粘性紊流，在非結構化網格中，採用基於有限元的有限體積法對方程進行離散，用壓力校正法進行數值求解。
  2. 4. a 2 - d and 3 - d euler equations and n - s equations are solved using the cell - centered finite volume method and four - step runge - kutta scheme on the cartesian grids with standard convergence acceleration techniques such as local time stepping, enthalpy and implicit residual smoothing

    使用jameson中心有限體積法和runge - kutta時間推進方法，求解了關於二維、三維復雜流場的euler 、 navier - stokes方程，採用了當地時間步長、隱式殘值光順等多種加速收斂方法。
  3. A high - resolution finite volume method 2d shallow water equations

    求解二維淺水方程的一種高解析度有限體積法
  4. 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。
  5. The grade composite, road performance and its mechanism are systemically studied. 1 ) the aggregate grade of ogfc is studied through the volume method base on the analysis of the aggregate grades. then the grade is verified and the relation between the grade and pore rate is studied statistically, the typical grades of ogfc are developed ; 2 ) the reasonable pore rate of ogfc is studied on the basis of the balance of mechanics and function performance ; 3 ) the mineral fiber is added to the ogfc mixes to increase asphalt content, thus the anti - water performance of ogfc mixes are improved ; 4 ) high viscous asphalt fit for the preparation of ogfc is prepared through composite modification by sbs and rubber powder ; 5 ) the mechanics mechanism of ogfc is studied in the paper, it shows : asphalt paste, as well as the coarse aggregate skeleton, is essential to the mechanics of ogfc

    在分析各國ogfc級配的基礎上，運用礦料體積法進行ogfc級配設計，用正交實驗對礦料級配進行了優化設計，運用數理統計方法分析礦料級配和孔隙率之間的關系，並回歸出礦料關鍵篩孔通過率與ogfc骨架空隙結構關系的數學方程，進而提出了ogfc的合理級配；通過對不同孔隙率典型級配混合料的性能研究，綜合力學和功能性能，得出了ogfc的合理孔隙率范圍：針對高速公路面層對ogfc力學性能方面的要求，本文從瀝青膠結材料、纖維穩定劑兩方面對ogfc的性能進行改善：通過sbs和橡膠粉復合改性的方法開發出了適合ogfc的高粘度改性瀝青，摻加聚合物纖維，提高ogfc的最佳瀝青用量，進而改善了混合料的高溫性能和抗水損害性能，優化設計出能滿足高速公路路用性能，車轍動穩定度達5000次/ mm以上，動融劈裂強度比90 ，透水系數31ml / s ，並具有防滑降噪功能的開級配瀝青磨耗層（ ogfc ）混合料。
  6. In the discrete process the mostly used method, the control volume method, is used. in the study of gas - particle flows numerical simulation, the gemchip arithmetic is often adopted. but it cannot be used directly in the investigation of clean room because of the low volume occupancy ( its volume fraction orde r is 10 - 10 below )

    採用控制體積法對氣粒多相流的控制方程進行離散，在gemchip演算法基礎上，由於室內懸浮顆粒的體積分數數量級在10 ~ （ - 10 ）以下，無法直接求解，在研究中通過直接求解顆粒數密度，不直接求解顆粒的體積分數對離散方程進行了求解。
  7. 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。
  8. A discretization equation is derived by using a finite volume method in three - dimensional cylindrical polar coordinate system. algebraic equations are solved by iteration with a line - by - line method that is a combination of tdma in axial and radial directions, ctdma in tangential direction and adi method in three directions. the pressure and velocity coupling are solved with the simple algorithm

    在三維圓柱坐標下，利用有限體積法推導離散方程；在軸向與徑向用三對角矩陣法（ tdma ） ，在周向採用循環三對角矩陣法（ ctdma ） ，採用交替方向亞鬆弛疊代法（ adi ）求解方程；推導同位網格下的壓力修正方程，用simple演算法處理速度與壓力的耦合；為加速收斂，採用適當的鬆弛因子。
  9. The flow algorithm solves the time - depended integral form of the equations by means of a cell - centred, symmetric finite volume spatial discretisation

    混合網格基礎上的n ? ? s方程的求解是採用jamson的中心格式加人工耗散的有限體積法。
  10. The results showed that the gradation, which designed by volumetric methods, has perfect water - stability and other pavement performance also can meet the demands of expressway. by integrating compaction capacity and pavement performances, the optimal ratio of the structural layer thickness to the maximum particle - size is 2. 5. the water resistance of the mixture added amine type anti - stripping agent attenuates severely after long - term aging, but the mixture added hydrated lime not only can improve obviously the capacity of water resistance, but also has perfect long - term pavement performance

    研究結果表明，採用體積法設計的級配不僅具有較好的水穩定性而且其它路用性能均滿足高速公路面層的要求；綜合考慮壓實性能及路用性能，提出了瀝青路面表面層結構層厚度與混合料最大粒徑的合理比例為2 . 5 ；摻有液體胺類抗剝落劑的瀝青混合料經長期老化后其抗水損害能力衰減嚴重，而摻加消石灰的混合料能顯著提高其抗水損害能力，且長期性能較好，是一種優良的抗剝落劑。
  11. With the fdtd method to solve the maxwell equations, with the finite - volume method to solve the n - s equations and with the single temperature local thermal equilibrium to solve plasma, first time to adopt the method of all numerical simulation, the coupling flow field of microwave plasma within resonant cavity of mpt was analyzed. for tm011 model and tem model, the matching relation between various parameters and its influence on the coupling flow field of microwave plasma within resonant cavity of mpt was studied separately. the reasonable selection of miniaturization design parameters was pointed out in the numerical simulation to be used in mpt miniaturization, i. e. throat, gas flux and microwave power should be smaller suitable after miniaturization

    採用fdtd法求解maxwell方程、有限體積法求解n - s方程、單溫度局域熱平衡模型求解等離子體參數，首次用全數值方法對mpt諧振腔進行了微波等離子體耦合流場的數值模擬，分別分析了tm _ （ 011 ）和tem兩種模式各自的參數匹配關系及其對微波等離子體流場的影響；應用於小型化mpt時，指出了小型化設計參數的合理選取，即：小型化后的mpt ，喉徑小、工質流量小，消耗的微波功率也小。
  12. In this dissertation, finite volume method, explicit runge - kutta time - marching scheme and " dual - time stepping method " are employed to solve the governing equations. both inviscid and viscous steady flows around two - dimensional cylinder, flat - plate and airfoils are simulated, and unsteady flows for airfoil in arbitrary motion are also calculated

    控制方程採用中心格式有限體積法進行空間離散，對于定常流動，運用runge - kutta顯式多步法進行時間推進求解，非定常流動採用隱式時間離散的「雙時間法」 （ dual - timesteppingmethod ）進行推進求解。
  13. Then in the second part, we describe our work on water animation in details, namely the physical model of shallow - water, the numerical solution of the 2d navier - stokes equations using the finite volume method, and the disturbance model which are used to control the behaviors of water waves

    本論文的前兩章介紹水流模擬課題方面的挑戰及人們所採用的方法。第三章以後具體地介紹如何利用有限體積法求解淺水波方程得到水波的運動形態，以及如何利用干擾模型擾動方程的數值解來產生各種形狀的水波。
  14. In this thesis, finite volume method and dual - time stepping method are employed to solve the 3 - d unsteady euler equations. the unsteady flow field around a finite - span flapping wing is simulated. the lift and thrust of the flapping wing for different cases are calculated

    本文運用有限體積法結合雙時間推進技術求解三維非定常歐拉方程，模擬了有限翼展機翼在同時具有上下拍動和俯仰運動狀態下的非定常流場，計算了不同狀態下撲翼的升力及推力，分析了各個影響因素對撲翼氣動特性的影響。
  15. To solve the navier - stokes equation, we discrete the water domain into triangular meshes and use a powerful numerical tool named finite volume method

    我們借用計算流體動力學中的數值分析工具，對淺水波方程進行數值求解。採用有限體積法求解方程，解穩定並且效率高。
  16. It ' s well known that the covolume methods ( finite volume el - ement methods ) are widely and successfully used in solving many mathematical - physical problems due to their simplicity and local conservation properties in recent years

    近年來，有限體積法因其具有局部守衡的性質且實施起來相對較為簡單靈活而被廣泛地應用於求解許多數學物理問題。
  17. Multi - grid - blocks, finite volume method, maccormack difference method was used to solve the unsteady two - dimensional navier - stokes equation, finite difference method was used to solve the two - dimensional heat transfer problem

    數值計算方面，以多塊網格為特徵的s2df程序採用有限體積法， maccormack離散格式求解二維、非定常n - s方程，利用有限差分方法求解二維熱傳導方程。
  18. In this thesis a numerical model to solve the planear 2 - d depth - integrated flow ( dif ) has been established with irregular body - fitted mesh finite volume method and explicit maccormack predictor - corrector method and applied to the study of damming caused by a bridge pier under 14 working conditions varied with the combination of different pier shape. flow rate and contraction ratio

    本論文採用非規則貼體網格有限體積法和顯式maccormack預測-校正法求解平面二維水深積分方程，對明渠水流運動的數值模擬方法進行了研究，並且應用該數值模型計算了14種不同的橋墩體型、來流、收縮比的組合工況下的橋墩壅水問題。
  19. These methods can be divided into two types. one is the methods based on the ray - tracing technique, such as monte - carlo method, zone method, discrete transfer method ; the other is methods based on the discretization of radiative transfer equation, such as discrete ordinate method, finite volume method, finite element method and so on

    目前輻射傳遞問題的求解方法可分為兩類，一類是以射線蹤跡為基礎的方法，如蒙特卡洛法、離散傳遞法、區域法等;另一類是基於輻射傳遞方程離散的方法，如離散坐標法、有限體積法、有限單元法等。
  20. For solving the corresponding discretization equation, there are few re - sults on the construction of efficient solvers. most existing results only presented the related error estimate for a concrete problem discretized by covolume methods. in this paper, hierarchical basis method, domain decomposition method and precondtioned gmres method are constructed

    並且大部分已有研究結果均集中於給出對某一具體問題用有限體積法離散后的誤差估計，而對于如何高效求解其離散方程，這一無論從理論上講，還是從實際應用角度出發都具有重要意義和巨大實用價值的問題，目前這方面的研究結果還很少。
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