two-equation model 中文意思是什麼
two-equation model
解釋
二方程的數字模型-
Based on this situation, in this paper, a more actual dynamic - chemical coupling model than two - state model, a periodic four - state kinetic hopping model, is established, and analyzed by the master equation method
基於這種情況，本文建立了一維周期性四態隨機躍遷模型，並利用主方程方法進行了研究。 -
In the second section of chapter 2, the fact that the essential interest rates of all nodes differ from each other is discussed, a non - homogeneous differential equation model of interest rate - amount of circulating fund is established, and it is proved that the sum of the weighted interest rates of each node in the financial network still remains a constant and that the difference of the instant interest rates between two nodes will finally approach the difference between their basic interest rates. in the third section of chapter 2, the differential equation model of interest rate - amount of circulating fund in an open system is studied, the laws of changes of interest rate are taken into account when fund is injected into or withdrawn from the node or when fund is injected into the network or withdrawn from the network, and the stability of equilibrium solution is proved based upon lyapunov stability theory. in the last, the equation model of interest rate - amount of circulating fund in the financial network with time delay is studied, and a necessary and sufficient condition for the existence of periodic solution is obtained to the interest rate - amount of circulating fund equation with delay
本文第二章首先建立了封閉系統的利率?流通量微分方程模型，證明了各結點利率加權和為常數即金融市場利率均衡原理，以及各結點利率極限為整個網路平均利率；其次在各結點基本利率不相同的情況下，建立了非齊次利率?流通量微分方程模型，證明了金融網路各結點利率加權和仍是一個常數，並證明了各結點兩兩之間的即時利率之差最終將穩定地趨于其基本利率差；此外，還研究了開放金融網路利率?流通量方程模型，考慮了結點自身追加資金和提走資金的情形以及網路外部注入資金和向外部轉移資金情形下的利率變化規律，用lyapunov穩定性理論證明了模型均衡解的穩定性；最後，還研究了具有時滯的金融網路利率?流通量方程模型，並給出了具有時滯金融網路的利率流通量方程具有周期解的充要條件。 -
Coal - water slurry is a new type of clean fuel as a replacement for oil. this paper introduces the tests of maoming no. 2 oil - fired 220 t / h utility boiler being retrofitted to fire coal - water slurry, including slagging tendency, heat transfer performances and pollutant emissions. firstly the k - ? two - equation turbulence model is used in numerical simulation for the side - air burner, compared with the practical measures and tests, good accordance achives
水煤漿是一種低污染、高效率、流動性強的代油新型清潔燃料，本文針對廣東省茂名熱電廠2 #油爐改燒水煤漿示範工程，對鍋爐改造后的結渣特性、爐內傳熱特性和污染物的排放特性進行了試驗研究。 -
In this paper, the standard three - dimensional k - two - equation turbulence model which modifies the item of buoyant effect and simple algorithm are adopted, wall functions are used to deal with the boundary condition and a simplified method - box method is used to model the supply air boundary condition
本文數值計算採用經過浮升力項修正的k -兩方程模型和simple演算法，壁面邊界條件採用標準壁面函數，風口邊界條件採用盒子方法。廠房內的氣流運動主要受風口出流動量的制約，因此選擇合理描述入流邊界條件的風口模型對數值模擬至關重要。 -
In this article, simulations of air distribution in the vav air - conditioned office are carried out in the cases of different air - supplying diffusers including slot diffuser, sqaure grille, bar grille and square diffuser to supply air, the standard three - dimensional k - ? two - equation turbulence model with correctional item of buoyancy effect and simple algorithm are adopted, and wall function method is used to handle boundary conditions
本文採用經過浮升力項修正的-兩方程模型和simple演算法，應用壁面函數法處理邊界條件，對利用包括條縫風口、方型百葉風口、長條型百葉風口和方型散流器不同型式送風口送風的變風量空調房間內的氣流組織進行了模擬。 -
The - two - equation turbulence model and the control - volume integration method and simplest algorithm were employed to simulate the three dimensional, isothermal, incompressible, rectangular two - impinging - jet on a flat plate
本文採用-紊流模式，使用控制體積積分之有限差分法及simplest計算程序，進行三維、恆溫、不可壓縮、矩形雙噴射撞擊流場之數值模擬。 -
The high reynolds number two - equation k - e turbulence model is used
湍流模型採用高雷諾數k -兩方程模型。 -
The two - equation turbulence models can be thought to consist of two more or less separate parts : the scale determining model, which provides scalar information about the turbulence, and the constitutive model, which determines the reynolds stress tensor
所涉及到的兩方程湍流模型一般包含兩部分：一是尺度標定模型，它給出了湍流的標量信息，如兩方程模型的尺度因子，或者。 -
A kind of two - equation turbulent model of charged fluid flow is constructed, in which the interaction between electric field and flow field is considered. based on analyzing the properties of forces on the charged droplets in the spray, pseudo - fluid of charged droplets phase method is adopted to develop a kind of charged two - phase turbulent model. this model takes account of the interaction between charged droplets phase and electric field, the inter - phase action between droplets and gas, convection and diffusion of droplets " turbulent energy
考慮電場與流場的耦合作用，建立了荷電流體的湍流模型，在荷電顆粒受力分析的基礎上，採用顆粒擬流體的方法建立了荷電氣液兩相湍流理論模型，該模型考慮了荷電顆粒相流場與電場的耦合作用，氣相與顆粒相的相間作用以及顆粒相自身湍能的對流與擴散。 -
The innovative ideas in this paper are that robust h control theory based on conventional ip controller is applied to the high - precision feed of a single axis, and the controlled plant is composed of ip velocity loop and two - order model of linear motor. a constraint condition on y in the problem of h2 / h is deduced from the frequency criterion of riccati equation, which makes the repeated computation on r simple. considering the two - loops control problem, the h state feedback controller based on ip controller as the inner controller is applied to satisfy the velocity performance of the system, and a pi controller, the external controller, is used to satisfy the position performance
本文的創新之處在於將傳統的ip速度控制器和直線電動機的二階模型作為一個廣義的被控對象，利用魯棒h _控制理論設計了一個h _狀態反饋控制器，以此解決高精度進給的控制問題，並在此基礎上研究了h _ 2 h _混合控制問題，結合h _代數riccati方程正定鎮定解存在的頻率判據，推出了一個控制器存在的約束條件，使以往須反復試探的，有了更進一步的約束范圍，簡化了計算。 -
From the simulation, we can get some parameter curves of landing gear. by analyzing these curves and the methods with two - masses model, the linear state equation of landing gear during landing process was established
基於參數曲線分析和二質量模型建立了起落架著陸的線性狀態方程，應用現代控制理論對方程進行分析並結合matlab軟體對其進行著陸動態模擬。 -
The purpose of this study is to examine the model of school adjustment of students with learning disabilities and general students in senior and / or vocational high schools questionnaires are used in this study, which includes 234 students with learning disabilities and 234 general students in senior and / or vocational high schools the data was analyzed using t - test, two - way anova, and structural equation model the results of the study are described as followings : 1
摘要本研究旨在探討高中職學障學生和一般學生的學校適應相關因素及其驗證性因素分析，問卷調查對象為高中職學障學生234位，及一般學生234位，以學校適應量表進行問卷調查，調查結果以t考驗、二因子變異數分析和線性結構方程模式，進行資料之分析，研究結果如下：一、高中職學障學生整體的學校適應比一般學生要差，且在同儕關系、師生關系、學習方法、學習態度、學習習慣等分量表也比一般學生差。 -
In this paper, two - dimensional and three - dimensional flow models in supersonic inlet and a simple reacting flow model in combustor and integrated flow field are established on the basis of k ? two - equation turbulence model and steady - compressible n - s equations, which are dispersed by finite volume method
本文以定常可壓縮n - s方程作為控制方程，採用-雙方程模型作為湍流模型，分別建立了超聲速進氣道的二維、三維流場計算模型和補燃室及一體化流場的湍流燃燒模型，並採用有限體積法對控制方程進行離散。 -
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。 -
2 an f - plane quasi - geostrophic barotropic vorticity equation model of high resolution is designed in this paper in order to investigate the characters of vorticity propagation and the effect of nonlinearity on the propagation within a typhoon circulation, wherein two mesoscale vortices coexist at different radial positions
2設計了一個高解析度的f平面的準地轉正壓渦度方程模式，用以研究兩個徑向距離不等的中尺度渦旋共存條件下，臺風環流內渦量傳播的特徵，以及非線性在此傳播過程中的作用。 -
If the two - equation turbulence models employ a linear relationship between the reynolds stress and the mean strain - rate tensors, this relationship is known as the generalized boussinesq model, the two - equation models can be extended for a wider range of applicability by developing more advanced nonlinear algebraic relations between the stress tensor and the mean - velocity gradient and the turbulent scales, this is known as explicit algebraic stress models ( easm )
另一個是構成模型，即決定應力張量、應變率張量和兩個湍流尺度因子之間的函數關系式，它決定了雷諾應力。如果構成模型是線性的，則為boussinesq渦粘模型（ evm ） ，如果構成模型是非線性的代數關系式，則為顯式代數應力模型（ easm ） 。 -
Five diensional geodesic equation is used to study the gravitational force acted on a test particle in the bulk of the randall - sundrum two - brane model. it is this force that causes the model to be unstable
我們從五維測地線方程出發，研究了rs雙膜模型中bulk檢驗粒子的引力，此引力導致了rs模型不穩定。 -
Based on former work, a finite difference viscous code that uses a high convergence, high accuracy, high resolution lu - sgs - ge implicit scheme and an improved fourth ( fifth ) - order high resolution muscl tvd scheme to integrate the full 3d navier - stokes equations and the low - reynolds number two - equation turbulence model is extended to simulate the flow field inside centrifugal impeller mechanism
並且在現有工作基礎之上，將基於有限差分方法的高收斂率、高精度、高解析度的lu - sgs - ge隱式格式和四（五）階muscltvd格式求解全三維navier - stokes方程和低雷諾數雙方程湍流模型的計算程序推廣到離心葉輪機械內部流場的數值求解。 -
The flow through the throat - type energy dissipator and the right - angle energy dissipator are calculated by using the two - equation turbulence model, which is expansively used to simulate the flow field successfully. the principal content and the achievement are concluded as follow : as a kind of internal energy dissipator in which the turbulent flow is contracted and expanded abruptly, throat - type energy dissipator was regarded as one of the potential energy dissipator for its many advantages, such as stable flow pattern, simple structure, easily controllable flow parameter, and anti - cavitation property
結合實體試驗，利用k -模型對當今尚處于起步階段的新型消能方式?洞塞消能工和直彎消能工進行了數值模擬研究，主要內容和研究成果如下： 1洞塞消能作為一種突縮突擴式的內流消能工，具有流態穩定、結構簡單、水流參數易於控制及防空化性能等優點，是一種很有發展潛力的消能方式。 -
The breakthrough curves of cadmium through the soils were simulated by the convection - dispersion equation according to the local equilibrium assumption, and cadmium transport in soils was fitted by the nonequilibrium models ( including the two - site kinetic sorption model and the two - region model ). then, the factor of affecting cadmium transport was analyzed
用非平衡模型即兩點動力學吸附模型和兩區模型擬合和模擬了鎘在土壤中的穿透曲線，獲得了物理和化學非平衡模型的參數，初步分析了土壤中影響鎘運移的有關因素。
分享友人