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finite volume method中文是什么意思

  • 有限容積法
  • 有限體積法

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  • 例句與用法
  • 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
    控制方程采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，非定常流動采用隱式時間離散的“雙時間法” ( dual - timesteppingmethod )進行推進求解。
  • A multi - block incompressible viscous flow solver has been developed that can be applied to simulation of a variety of ship maneuvering related flows and calculation of hydrodynamic forces . validation and verification of the solution procedure are carried out on several model problems with good agreement to experimental and numerical results . the present block - structured viscous flow solver is based on solving the reynolds - averaged navier - stokes ( rans ) equations with a second - order cell - centered finite volume method ( fvm ) on non - staggered grids
    本文即在這種背景下，瞄準(zhǔn)船舶操縱水動力預(yù)報方面的國際前沿和熱點課題，通過對現(xiàn)代船舶粘性流計算方法的研究，自主開發(fā)了一個船舶操縱粘性流求解器，并將所開發(fā)的求解器成功地應(yīng)用于一系列和船舶操縱問題相關(guān)的粘性流動與水動力計算，得到了令人滿意的結(jié)果。
  • 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(zhàn)及人們所采用的方法。第三章以后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(tài)，以及如何利用干擾模型擾動方程的數(shù)值解來產(chǎn)生各種形狀的水波。
  • 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
    而后采用基于雷諾時均n - s方程與標(biāo)準(zhǔn)-湍流模型來求解離心泵葉輪內(nèi)三維粘性紊流，在非結(jié)構(gòu)化網(wǎng)格中，采用基于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(shù)值求解。
  • 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(chǔ)的方法,如蒙特卡洛法、離散傳遞法、區(qū)域法等;另一類是基于輻射傳遞方程離散的方法,如離散坐標(biāo)法、有限體積法、有限單元法等。
  • The material job and main conclusion are as follows : ( 1 ) a simple boundary orthogonalization procedure independence grids generation method is put forward on the base of algebraic grid generation method ; data structure and computational model on interface are established aiming at blocks of structured grids . ( 2 ) simple procedure is established in nonorthogonal grids by use of the finite volume method and in - depth discusses on special topic such as boundary condition in nonorthogonal grids , deferred correction method and grads compute on calculational nodes , and so on
    本文完成的具體工作和主要結(jié)論如下： 1 )以代數(shù)網(wǎng)格生成方法為基礎(chǔ)提出了一種簡單的、可獨立于網(wǎng)格生成方法之外的邊界正交化技術(shù)；針對分區(qū)結(jié)構(gòu)網(wǎng)格系統(tǒng)建立了分區(qū)交界面處的數(shù)據(jù)結(jié)構(gòu)與計算模型； 2 )利用有限體積方法在非正交同位網(wǎng)格系統(tǒng)中建立了simple求解算法，對非正交網(wǎng)格系統(tǒng)中的邊界條件、延遲修正技術(shù)及計算節(jié)點的梯度計算等專題進行了深入討論。
  • With this program , the blade suit for flow parameters that was obtained from the meridional - flow program is designed . finally , the flow field of the cascade of the counter - turbine is simulated using the cfd program . the cfd program is based on the jameson cell - centered finite volume method
    最后對所設(shè)計出的對轉(zhuǎn)渦輪平面葉柵內(nèi)部流場進行了初步數(shù)值計算，采用的計算格式為jamescn的具有二階精度的runge ? kutta四步顯式有限體積法，結(jié)合時間推進求解euler方程。
  • Consulting on the base of a large amount of dada , both a discussion and a summarization have been made in the investigation of metal extruding law with the help of these methods and it is recommended that the numerical simulation technology based on the finite volume method has a bright future for further evolvement of the research methods used in the extruding process
    關(guān)于這些方法在擠壓變形規(guī)律研究中的運用，本文查閱了大量有關(guān)資料并加以討論總結(jié)，認為以有限體積法為基礎(chǔ)的數(shù)值模擬技術(shù)對擠壓規(guī)律研究方法的改進具有廣闊的發(fā)展前景。
  • In the paper , river and the downstream area of dike are regarded as a whole system , and hydraulic model of coupling 1 - d river and gradual dike - break is established , therein the preissmann implicit difference scheme is applied to main river , and the fvm ( finite volume method ) is applied to the breach and polder
    本文將河道與堤壩下游區(qū)域視為一個整體，對于單一河道采用preissmann四點隱式差分格式計算，對于潰口及圩區(qū)采用有限體積法，建立了一維河道與堤壩漸潰耦聯(lián)的水力模型，也是一維、二維耦合的水流模型。
  • Using fluid analyze software , the 3d turbulent flow is stimulated based on navier - stokes equations and k - model . the turbulent flow through axial flow pump impeller is simulated by using the non - uniform triangle mesh system and the finite volume method . calculated results are presented at the design operating condition for the impeller in detail , which give a valuable reference to improve the performance of the impeller
    最后，應(yīng)用cfx流體分析軟件，基于n - s方程和標(biāo)準(zhǔn)-紊流模型，采用非結(jié)構(gòu)化網(wǎng)格技術(shù)，用聯(lián)立求解各變量代數(shù)方程組的方法對設(shè)計工況下的軸流泵葉輪內(nèi)部的三維紊流場進行了詳細的數(shù)值計算與分析，并預(yù)測其性能。
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