runge-kutta algorithm 中文意思是什麼
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Ignored the amplified spontaneous emission ( ase ) and esa, rate equations and propagations equations for continuous wave er ~ ( 3 + ) / yb ~ ( 3 + ) co - doped phosphate glass waveguide laser were calculated using runge - kutta algorithm. propagation characteristics of signal and pump light in the waveguide were analyzed too
利用fd - bpm法，對在平板波導以及波導折射率為漸變折射率分佈的溝道波導和掩埋型波導內傳播的波長為980nm的泵浦光和1540nm的信號光的光場進行了模擬。 -
The momentum equations are integrated in time using the four - stage explicit jameson runge - kutta algorithm and discretized in space using fourth order accurate compact scheme as well as the pressure poisson equation
動量方程的時間導數採用四步jamesonrunge - kutta法，空間導數和壓力poisson方程均採用四階高精度緊致格式。 -
We also compute naca0012 airfoil and certain three - foil flow field separately with explicit 4 - step runge - kutta scheme and the implicit lu - sgs scheme and results show the latter is much more efficient. in the end, the capability of the algorithm to deal with multi - bodies in relative movements is demonstrated by a dropping drank problem. it turns out that the unstructured overset grid is valuable and promising in practical application
同時為了驗證隱式lu - sgs格式的收斂效果，我們對基於單塊網格的naca0012翼型與某三段翼型在不同的來流條件下，分別用帶隱式的lu - sgs格式與顯式的四步runge - kutta格式的解算器進行了數值模擬。 -
This paper is developed a algorithm to generate airplane ' s 4d approach trajectory, by using fourth order runge - kutta, based on a set of point mass equations of motion, pilot procedure and air traffic control procedure
本論文是基於飛機質心運動方程組，結合飛行操作程序和空管管製程序，根據飛機的空氣動力學模型、推力模型和實時的大氣氣象模型，用四階龍格? ?庫塔積分法規劃出飛機下降進近4d軌跡。 -
But the nnd algorithm can " t reach 2 - order precision, and the cell - centred finite volume algorithm is not suit to solve hypersonic problem. for the efficiency of the four - stage runge - kutta time - stepping scheme is low, and the robust is bad for the hypersonic problem, an implicit time - stepping scheme is adopted. this scheme can preserve the results precision and improve the computing efficiency sharply, and is an innovation for the time - stepping scheme of unstructured grid
為了解決目前傳統四步龍格一庫塔時間推進效率較低、計算高超聲速流場時魯棒性較差的問題，本文改進並採用了一種隱式時間推進格式，能夠在保證精度要求的情況下有效的提高流場計算時的計算效率，對基於非結構網格的時間推進格式有了發展和創新。
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