流動邊界 的英文怎麼說
中文拼音 [liúdòngbiānjiè]
流動邊界
英文
flow boundary- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 邊 : 邊Ⅰ名詞1 (幾何圖形上夾成角的直線或圍成多邊形的線段) side; section 2 (邊緣) edge; margin; oute...
- 界 : 名詞1 (相交的地方; 劃分的界限) boundary 2 (一定的范圍) scope; extent 3 (按職業、工作或性別等...
- 流動 : 1. (液體或氣體移動) flow; run; circulate 2. (經常變換位置) going from place to place; on the move; mobile
- 邊界 : boundary; frontier; border; borderline; edge range line; periphery
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Liu changgen, tao jianhua. modeling the interaction of solitary waves and semi - circular breakwaters by using unsteady reynolds equations. applied mathematics and mechanics ( english edition ). 2004, 25 ( 10 ) : 1118 - 1129
孫健,陶建華.潮流數值模擬中動邊界處理方法研究[ j ] .水動力學研究與進展(已錄用)Karst drainage is a regional synthetical whole which is made up of spatial drainage boundary, unique geomorphy - river net structure and hydrologic dynamic process and has its own special drainage structure
喀斯特流域是由特殊的流域邊界,獨特的地貌?水系結構及水文動態過程的地域綜合體,有其特殊的流域結構。With the flowchart the program can be divided into six parts and it includes initial flow field, computation of molecular motion, boundary treatment, re - sort of molecular, sample and computation of molecular collision. several cases have been simulated to certify the correctness of the program. dsmc method is improved using method of characteristics to modify the boundary condition and gets the goal as expected
首先,編程實現了基本dsmc方法對二維流動的計算,給出了所用演算法的原理、相關模型,並結合程序結構流程圖,分別介紹了初始化流場、計算分子的運動、邊界的處理、分子的排序、抽樣計算分子的碰撞、流場參數采樣統計各個功能模塊在fsmm2d中的實現,並對該程序進行了算例校驗。Firstly in this part, computer simulation methodology based on the baecher model for generating network of discrete fractures was presented, which includes the follow details : probability distributions of fracture density, orientation, trace length, size, and aperture and estimation of their statistical parameters ; stochastic models of fracture network ; monte - carlo ' s simulation method ; numerical simulation procedure and technicality. then, boundary element method was used to calculate flow through the generated fractured network. assuming single fracture as a two - dimension inexpressible isotropic porous media, boundary element method equations for flow in single fracture and then in fracture network were derived using the weighted residual method
給出了離散裂隙網路模型所依據的基本假定;發展了基於baecher模型的離散裂隙網路計算機隨機生成技術:詳細地推導了單裂隙滲流和多裂隙相交網路滲流的邊界單元法公式,發展了離散裂隙網路中穩態滲流的邊界元數值技術,並且討論了相關的具體數值技術細節,如角點的處理方法,單元的自動剖分等:描述了混合邊界元?管流模擬方法及其數值實現;研究了裂隙網路的簡化方法,並針對裂隙網路邊界元法的特點提出了一種改進的分塊三角分解法。A separation in the boundary layer of fluid about a moving streamlined body, such as the wing of an airplane, causing a breakdown in the smooth flow of fluid and resulting in turbulence
氣流分離移動的流線型的軀體上流體邊界層上的分隔物,如飛機的機翼,在平滑的流體流動中會引起故障和湍流To solve the heat transfer boundary problem among the piston, liner, coolant and body parts, especially the temperature and heat transfer among the coolant, liner and body
摘要為解決發動機活塞組缸套冷卻水機體之間傳熱邊界條件難以確定的問題,尤其是冷卻水和缸套、機體之間的流固邊界的溫度和換熱系數,將這幾個部件作為一個耦合系統進行傳熱研究。Turbulence over flat wall is presented with the cfd software cfd ace ( u ) when given by various inlet boundary conditions, subgrid model and turbulence intensity under the two - dimensional circumstance. on comparing these outcomes with the experimental data, we can analyze the impacts that all these factors have on the development of flow boundary layer
採用計算流體力學軟體cfdace ( u ) ,在二維情況下應用不同的進口邊界條件、亞格子模型和來流湍流度對平壁流動進行大渦模擬,並將模擬結果與已有的實驗結果進行對比,分析比較了這些因素對流動邊界層發展的影響。On three - dimensional numerical solution of incompressible viscous flow by osfem abstract an algorithm for solution of three - dimensional navier - stokes equations for incompressible viscous flow is developed. a decoupled algorithm based on the operator - splitting technique is applied
由於三維粘性流動的復雜性,例如流動邊界的選取、控制條件的給定以及混合運算元方程高精度數值解法等,都值得探討和研究。Horizontal circulation at the inlet of the upper approaching channel of three gorges project can affect the safety of navigation. boundary layers will separate along a curved dike causing horizontal circulation regions which affect the overall flow field and increase sedimentation
類似的由於流動邊界出現凸出障礙物引起邊界層分離,導致迴流發展、流態惡化,造成泥沙淤積等一系列問題的情況,在水利、航道及電站等工程中普遍存在。Just under this urgent consideration, based on the fact that self - oscillation can produce pulsation of flow, to influence the flow boundary layer, thus to increase convective heat transfer coefficient, it is necessary to devote to the mechanism of self - oscillation and apply it to a heat exchanger
正是在這種迫切要求下,基於自激振蕩能產生脈沖流動而影響流動邊界層從而提高對流換熱系數來強化換熱的考慮,需要開展對自激振蕩的機理及其應用的研究。Abstract : based on the analysis of the pressure equation of filling flow in injection molding, finite - element method is employed to solve the transient pressure field with moving free form boundary
文摘:在分析注塑充填流動壓力方程的基礎上,採用有限元方法求解充填過程中非定常、具有移動邊界的壓力場。In this thesis, the tides and tidal currents in the seas adjacent to zhejiang province are simulated with a three - dimensional baroclinic primitive equation model - hamburg shelf ocean model ( hamsom ). two numerical techniques - nested grid and moving boundary method are used successfully and high precision results which compared with the observed ones are obtained. these results reveal the characteristics and the moving rules of the tides and tidal currents in this area
本文採用三維陸架海模式( hamsom )對整個浙江近海的潮汐和潮流進行了三維數值模擬,成功地應用網格嵌套和動邊界技術獲得了和實測資料相吻合的較高精度的結果,揭示了浙江近海潮汐、潮流的主要特徵和運動規律。Secondly, the process model is established. the process is departed into two stage. one is pre - process. the moldfilling of polymer melt in three dimensional thin parts is a viscous, incompressible flow with moving boundaries
整個充模過程分成兩部分:第一部分為預充模過程,這一過程屬于帶有運動邊界的粘性不可壓縮流體的流動。Abstract : three - dimensional, time - dependent, compressible fluid flow problems have been studied with the finite volume scheme based upon an arbitrary lagrangian - eulerian scheme. a general program for arbitrary mesh has been developed. this program can be used to the fluid flow with arbitrary shape boundary condition and moving boundary condition. as an example, the fluid flow in a simple tundish is calculated, and the time - dependent fluid flow distribution is given out
文摘:在歐拉與拉格朗日耦合的框架下,利用有限體積法對非定態三維可壓縮流體流動問題給予研究,開發了一般網格下的通用計算程序.該程序適用於計算復雜幾何邊界條件、運動邊界條件等情況下流體流動問題.作為例子,計算了簡單中間包內流體的流動情況,給出了隨時間變化的流場分佈After that, on the non - inertial coordinate, the other part flow field, of the complex cylinder, which is composed of three basic flow field, is simulated by the same method as above
然後,在非慣性坐標系下,對具有兩個動邊界一個定邊界的多級缸上一級流場,採用投影法加變換,在共有邊界上耦合的方法進行求解。The results show that rsm can accurately simulate the movement of the turbulent buoyant flow in reservoir and the anisotropic turbulence due to the thermal stratification. however, rsm is difficult in convergence, bad stability and more time consuming. rsm is suitable when the high accuracy is concerned and geometry boundary is simple
結果顯示, rsm模型能精確模擬水庫中湍浮力流運動規律和由於溫度分層引起的紊動量的各向異性的特徵,但其收斂性、穩定性及經濟性較差,適用於計算精度要求較高且流域邊界較為簡單的流動。The flow field with moving boundary in a complex cylinder is simulated numerically in this thesis
本文對多級液壓缸內動邊界流場進行了分析和數值模擬。Only by the simulation of the unsteady flow field with moving boundary, can the moving process be expressed faithfully
只有動態流場(也就是動邊界流場)模擬,才能完整地描述運動全貌。Although there are many papers on the numerical analysis of hydraulic - element flow fields, and make a good effect on improving the element properties, usually they only study steady flow field, which can not describe the whole moving process of hydraulic elements
液壓元件內動邊界流場的模擬,是了解與改進元件參數性能最有力的手段。以往液壓元件內流場的數值模擬,僅限於穩態流場,它不能反映運動的全過程。With the development of computer and computational mechanics, the numerical simulation of unsteady flow with moving boundary will be a fruitful research area. in this thesis, some significant progresses have been achieved in the numerical simulation of complex - cylinder flow field with moving boundary
隨著計算機、計算流體力學的發展,液壓元件內動邊界流場的模擬,將成為一個研究方向,本文在這方面作了一些初步的工作。分享友人