stokes equation 中文意思是什麼

stokes equation 解釋
斯托克斯方程
  • stokes : 定律
  • equation : n. 1. 平衡，均衡；平均，相等。2. 【數學】方程式，等式。3. 【天文學】（時）差；均分，等分。4. 【化學】反應式。
  1. Residual a posteriori error estimate two - grid methods for the steady navier - stokes equation with stream function form

    方程流函數形式兩重網格演算法的殘量型后驗誤差估計
  2. First, according to the design requirement of hydraulic valve, the particular parameter of the valve is put forward, and the navier - stokes equation of the two - dimension impressible viscid fluid in the hydraulic valve is set up

    本文選擇液壓閥中的溢流閥為具體研究對象。根據溢流閥的性能要求，確定了閥的具體參數，完成了溢流閥的設計。
  3. The research aims at the demonstration and the mend of the design on the new purifier and presents a calculation method for solving the two - phase flow in fluid machine by the finite element method. after analyzing the two - phase flow in the new purifier by means of the continuum model, poisson equation, navier - stokes equation and continuous equation are derived and solved by using the finite element method. the solution on pressure, velocity and particle concentration simulates the departure well between oil and water, which proves the accuracy of the design on the new purifier

    本文採用兩相流連續介質模型，由兩相分離流動理論得到控制方程，採用chorin的直接速度-壓力mac法的思路，對新型油水分離裝置內油水兩相流動作了細致的分析，同時首次把科氏慣性力引入兩相流模型中，進行分析和計算，將研究擴展到三維，並用有限元法分別解poisson方程、 n - s方程、連續方程的方法，對流場內壓力場、速度場、濃度場進行了分析和計算，較好地模擬了新型油水分離裝置內油水分離的現象，證明了設計方案的正確性。
  4. In the turbulent flow, the fluid ’ s physical parameters has the stochastic change along with the time and the space, it is very difficult to carries on its rate process ’ s precise computation and the simulation with mathematics method, but unstable condition navier - stokes equation regarding open canal current of water transient motion suitable

    閘后水流經過加糙的海漫段時，其水流狀態屬明渠紊流。流體中的各種物理參數，都隨時間與空間發生隨機的變化，很難用數學的方法對其運動過程進行精確計算和模擬。
  5. Firstly, discrete methods of time and space in the dns are introduced in the present paper. and the procedure of solving the navier - stokes equation is also presented. in addition, ways of correcting time - splitting error and removing aliasing error in pesudospectral transform method are introduced too

    本文首先介紹了直接數值模擬中時間和空間離散的方法，並詳細介紹方程的求解的步驟以及偽譜法中混淆誤差產生的原因及其消除方法，並對時間分裂法造成的散度誤差的修正方法進行了簡要的介紹。
  6. The experimental results of the flow characteristics of the mmc heat sink indicate that the critical reynolds number signifying the transition from laminar flow to turbulent flow is in advance ; under the same experimental conditions, the variation in entrance direction of the microchannel inlet and outlet has little effect on the microchannel ; the experimental values of the friction factor of the de - ionized water in a microchannel agree well with those calculated using the theoretical laminar formula ; furthermore, a comparison of the experimental results and simulation results shows that navier - stokes equation and rng - turbulence model can be used to model the laminar and turbulence flow regions in a microchannel ; meanwhile, the correlations of the flow resistance in the turbulent flow regions for the de - ionized water as the working fluids are obtained from experiments

    對歧管式單通道熱沉流動特性的研究結果表明，微通道內流體流態由層流向紊流轉變的臨界雷諾數提前;改變流體的進出口方向對熱沉總壓降造成的影響很小;摩擦系數的實驗值與理論值較接近;數值模擬結果能夠與實驗值較好吻合;並由實驗給出了紊流區流動阻力的實驗關聯式。此外，選用十二烷基硫酸鈉（ sodiumdodecylsulphate ， sds ）以及烷基多糖苷（ alkylpolyglycoside ， apg ）作為減阻添加劑，研究了表面活性劑添加對微通道流動特性的影響。
  7. In order to predict hydrodynamic characteristics a computational system is developed including determination of the pressure distribution on a wing section by use of the conformal mapping method and panel method respectively and of the flow in boundary layer according to the thin shear layer approximation ( tsl ) for navier - stokes equation approach. the wing sections of naca4412 and naca0012 are applied to test the computational system. the numerical inspection shows that the panel method with better precision and the momentum and the displacement thickness of boundary layer can be used to complete this calculation

    本文分別用守屋的保角變換法和基於源匯渦分佈的面元法，建立了計算槳葉表面壓力分佈的數學模型；應用納維-斯托克方程的薄層近似理論模式和有限差分數值方法，建立了計算機翼表面邊界層內部流動的數學模型；應用槳葉表面邊界層內部粘性流動和外部勢流流動在邊界上的匹配演算法，建立了槳葉表面二相流流動的計算方法和相應的計算機程序。
  8. By procceding from the all - gaseous state navier - stokes equation and using eno difference scheme, the limited cold - flow jets produced by ignitors are numerically simulated in srm chamber. then the flow field structure and characteristics are analyzed

    從曲線坐標下的完全氣體n - s方程出發，採用eno差分格式，對點火發動機工作初期，在固體火箭發動機內腔形成的受限冷噴流流場進行數值模擬;在此基礎上，分析了噴流的流場結構及特性。
  9. Abstract : by procceding from the all - gaseous state navier - stokes equation and using eno difference scheme, the limited cold - flow jets produced by ignitors are numerically simulated in srm chamber. then the flow field structure and characteristics are analyzed

    文摘:從曲線坐標下的完全氣體n - s方程出發，採用eno差分格式，對點火發動機工作初期，在固體火箭發動機內腔形成的受限冷噴流流場進行數值模擬;在此基礎上，分析了噴流的流場結構及特性。
  10. A two - dimensional navier - stokes equation was solved to predict the unsteady, multipassage flow and temperature fields with hot streak in turbine inlet

    摘要通過求解二維n - s方程對多通道渦輪級進口有溫度畸變時的流場和溫度場進行了非定常數值模擬。
  11. This paper has established a class of mathematics model about prandtl boundary layer problem. compare to navier - stokes equation, prandtl boundary layer equation has important simplicity and easier

    普朗特邊界層方程和納維? ?斯托克斯方程相比，有了重大的簡化。
  12. In this thesis, different types of stability equations, including orr - sommerfeld equation ( ose ) and parabolized stability equation ( pse ) based on the “ slow change ” hypothesis and the local method equation which is computed in local range, are derived from navier - stokes equation with “ small disturbance ” hypothesis

    本文從navier - stokes方程出發，導出不同形式的流動穩定性方程，包括採用小擾動理論得到的orr - sommerfeld方程（ ose ） 、基於流向慢變特性而得到的拋物化穩定性方程（ pse ）以及在一小范圍內計算的局部法方程。
  13. 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。
  14. Einstein - stokes equation

    斯托克斯方程
  15. 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。
  16. New method to solve incompressible navier - stokes equation

    方程的一種新方法
  17. According to the mathematic modeling principle of physical problem, the error of lattice boltzmann model is analyzed in chapter 3. the nonlinear deviation term from the navier - stokes equation is given, and the main model coefficients, such as speed of sound, viscosity and so on, are verified by numerical computation, the results show that the lattice boltzmann method has second order precision in space and in time which satisfy the engineering application, whereas, the compressible effect ca n ' t be neglected along with mach number increasing, and must be reduced or eliminated

    其次，按照物理問題數學建模的原則，對格子法的誤差進行了分析，給出了格子bgk方程再現navier - stokes方程時的壓縮誤差項，並數值驗證了格子模型的聲速及粘性系數等相關參數的精度，表明格子模型盡管具有時空二階精度，能滿足工程計算的要求，但隨著mach數增大，壓縮誤差逐漸成為主要誤差，必須予以消除。
  18. 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。
  19. Particularly for navier - stokes equation, we will compare the gmres methods with different preconditioned. we make some variances from the hss preconditioner ( [ 15 ] ), that are ma1 - ma4 in our paper. comparing with block triangular preconditioner we will find that the cpu time for ma1 is the smallest

    對navier - stokes方程的求解，我們重點是比較不同預條件的gmres方法，對基於對稱，反對稱分裂（ hss ）的預條件（ [ 15 ] ） ，我們提出幾種變形，本論文分別用m _ （ 1 ? m _ （ 4 ）來表示，並用它們和約束預條件做比較，結果表明，在計算時間上m _ （ 1 ）是最少的，最後我們對ep線性方程組的廣義逆解的擾動分析的某些結果也通過數值實驗給予驗證。
  20. The navier - stokes equation is discretized in the moving - grid system. by adopting the explicit four - stage runge - kutta jameson finite volume scheme, and under the sustainment of acceleration algorithms such as dual - time stepping method, the multi - grid strategy and implicit smoothing of the residuals, a two dimensional unsteady viscous flow in vibrating cascades is simulated

    本文在運動網格體系中離散n - s方程，應用runge - kutta四步顯式的jameson有限體積格式，並在雙時間方法、多重網格法及殘差光順等加速演算法的支持下，計算了二維振動葉柵非定常粘性流場。
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