k equation model 中文意思是什麼
k equation model
解釋
k方程模型-
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。 -
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。 -
3. based on the wall equation and k - ? model, the variable c ? and the variable lm were used to improve the numerical simulation of pipe flow with the tripping annulus at the inlet
在壁函數和-模型的基礎上，採用了變模型常數c _ （ l ）和變混合長度l _ m的方法對入口處帶有擋環的圓管湍流模擬計算進行了修正。 -
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。 -
For the present two les models, adopting the subgrid eddy viscosity concept and introducing the transport equation of turbulence energy k, the subgrid scale turbulence is parameterized by the turbulence energy k and the length scale of turbulence / ( k - 1 model ). in addition, vegetation is considered as an internal source of resistant force and turbulence energy
在應用大渦模擬方法求解數值計算模型控制方程時，亞網格雷諾應力項沿用了亞網格渦粘性系數思路，引入亞網格紊流脈動動能k的輸運方程，建立了關于亞網格紊流脈動動能k和紊流特徵長度l的k - l模型求解。 -
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。 -
2, application of the modified k - e model by munk - anderson equation to gravity flow in reservoir shows that the modified model overestimates the turbulent intensity in reservoir. it results enhance of momentum exchange in vertical direction and large error in velocity
採用munk - anderson修正的-模型模擬水庫重力下潛流，發現該修正模型過高地估計了水庫的紊動強度，使垂向動量傳遞加大，流速誤差明顯增加。 -
Application of homogeneous k - equation turbulent closure model in the coastal sea
齊次湍流動能輸運方程封閉模型在淺海動力學中的應用 -
In this paper, the continuity equation, the momentum equation, the k equation and the e equation are used to set up the theoretic model. the flow in the intake port is looked upon as the three - coordinate steady flow, but the heat transfer between the all and the flow in the intake port is n ' t considered
本論文利用連續性方程、動量方程、 k方程、方程建立氣道流動理論模型，將氣道內流體看作三維定常流動，不考慮氣道壁面與流體之間的熱傳遞。 -
Governing equations of a modified k - model is derived in a three - dimensional cylindrical polar coordinate system, and an available equation is produced
首先給出單相螺旋流流場在三維圓柱坐標下的修正-湍流模型的控制方程，得出控制方程組的通用形式。 -
( 4 ) there are different predictions on velocity field, temperature field and the heat transfer coefficient when single equation model and launder and sharma low - reynolds number k - e model were used respectively in the near wall regions
（ 4 ）近壁區採用單方程模型和雙方程模型對流動結構、溫度分佈和換熱系數分佈的預測有著較大的差別，建議開展實驗研究進行驗證。 -
The standard k - e turbulence model was employed in the core region of the cavity. two low reynolds number turbulence models, single equation model and launder and sharma low - reynolds number k - e model, were used in the near wall regions
在紊流核心區採用標準k -模型，近壁區分別採用單方程模型和launder ? sharma低雷諾數k -模型，採用simple演算法，求解並獲得了盤腔中的速度和壓力場、全域的溫度場以及流固界面上的換熱系數和努謝爾數分佈。 -
The numerical simulation is an effective method. the main task of this dissertation is to establish a hydrodynamic and pollutant transport model, and to simulate the tide field and concentration field of hakata bay : ( 1 ) dispersing the long - wave equation on interlaced grid by adi method, a two - dimension hydrodynamic model is established to simulate the tidal flow in hakata bay under the effects of m _ 2, s _ 2, o _ 1, k _ 1 tide
本文的主要工作是建立一個深度平均的二維水動力及污染物擴散輸移的數值模型，並對一實際海灣的潮流場及濃度場進行數值模擬： （ 1 ）用深度平均淺水波動方程為控制方程，採用迎風adi有限差分方法（交替方向隱式法）在矩形交錯網格上離散潮波方程，建立了一個二維潮流數值模型。 -
The two - dimensional body - fitted grid was created by method of partial differential equation and zonal method. the k - equation subgrid - scale model was used to simulate the turbulent viscosity, the chemical reaction rate was determined by the subgrid ebu combustion model and the heat flux model was employed for the heat flux
運用偏微分方程和區域法生成二維貼體網格，湍流模型採用k方程亞網格尺度模型，燃燒模型採用亞網格ebu燃燒模型，採用熱通量輻射模型估算輻射通量。 -
In this paper, based on the navier - stokes equation and the k - turbulent model, the numerical simulation of the 3d turbulent flow in a centrifugal impeller, of which specific speed is 93. the distribution of the velocity and pressure in the blade - to - blade passage are presented at the design and off - design operating conditions. the simulation results were verifiable with the results measured by piv
本文基於n ? s方程和標準的k ?雙方程紊流模型，採用商用cfx - tascflow計算軟體對一離心泵葉輪模型進行了葉輪內部三維紊流數值模擬，得到了三個典型工況下、從輪轂到前蓋板每一個斷面上的速度和壓力分佈。 -
The current cfd soft wares were introduced. secondly, there were the correlative knowledge about the time averaged reynolds equation, the criterion k ? model, the simple method, the technology of unstructured mesh, the terminal condition and the modeling method
詳細分析與本文研究相關的雷諾時均方程、標準k -模型、 simple計算方法、非結構網格技術、邊界條件以及所用到的幾何建模方法。 -
An implicit lu - sgs ( lower - symmetric gauss - seidel ) finite - volume method is used for solving the full, compressible, two - dimensional navier - stokes and species transport equations. for turbulence closure a two equation ( k - e ) model is used. the combustion process in chemical nonequilibrium is modeled by a 7 - species, 8 - reaction steps finite - rate chemistry and is implicitly coupled with the fluid motion
採用lu - sgs有限體積法求解了包括兩方程（ - ）湍流模型和7組元8方程有限速率化學反應模型的緊耦合二維n - s方程，數值模擬了氫燃料在燃燒室內的化學非平衡燃燒過程。 -
The computational region was composed of fluid region enclosed by stator and rotator disks, as well as inner and outer shrouds, and solid region, that is rotator disk. the main research work and results are the following : 1 ) numerical study was conducted for the flow problem inside a typical rotator - stator cavities with different turbulent models including 1 - equation model and high k - model rng k - model
論文主要工作和結果如下： （ 1 ）針對典型的轉-靜盤腔模型進行數值研究，通過對單方程模型、高k -模型和rngk -模型獲得的計算結果進行比較以及與相關試驗數據驗證，結果表明， rngk -模型較高k -模型和單方程模型更能準確地模擬轉靜盤腔的流動。
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