artificial dissipation造句

• Finally, numerical experiments are carried out to weigh the influence of the artificial dissipation coefficient a and the pseudo-compressibility coefficient
  另外，本文也对人工耗散系数和人工可压缩系数对数值计算的影响进行了实验。
• To ensure the numerical dissipation much smaller than the physical viscous terms, directional scaling of the artificial dissipation is achieved and proper boundary conditions are also introduced in this term
  为保证高雷诺数下n-s方程的数值粘性远小于物理粘性,对人工粘性项进行了方向性修正并引入适当的边界条件。
• The further extension of the method for solving euler's equations is then presented with five-stage runge-kutta time-stepping scheme, studying the artificial dissipation model of unstructured mesh method
  针对守恒型euler方程组的无网格离散形式，借鉴非结构网格方法附加耗散模型，采用五步runge-kutta显式时间推进格式求解。
• To overcome the disadvantages of pseudo-compressibility algorithm, four-order artificial dissipation term is added to the right of the differential equation, and the recommended formula is offered for the choice of the artificial dissipation coefficient
  为了克服人工可压缩方法可能带来的数值振荡，本文在离散方程的右端显式添加四阶人工耗散项，并就人工耗散系数的选取给出了推荐公式。
• To overcome the disadvantages of pseudo-compressibility algorithm, four-order artificial dissipation term is added to the right of the differential equation, and the recommended formula is offered for the choice of the artificial dissipation coefficient
  为了克服人工可压缩方法可能带来的数值振荡，本文在离散方程的右端显式添加四阶人工耗散项，并就人工耗散系数的选取给出了推荐公式。
• The ns solver is developed from euler equation code by adding viscous terms and two-equation turbulence models . in order to get a better result, the improved jameson second and forth artificial dissipation is used, the implicit residual averaging and local time step techniques are employed to accelerate the convergence processing
  本文是在欧拉方程求解器的基础上，通过加入粘性(耗散)项，把流场的主控方程由欧拉方程(euler)改为ns方程，然后引入两方程湍流模型，使其封闭。
• Then the explicit finite-volume method for the two-dimensional steady navier-stocks equations is studied . in order to prevent odd-even decoupling of the solution and oscillations near the shock waves, artificial dissipation is added . local time step, residue averaging, enthalpy damping and multi-grid method are used to accelerate the convergence during the five-step runge-kutta explicit time marching
  在计算中，采用五步runge-kutta显式时间推进，引进人工耗散项以克服中心差分固有的奇偶不关联性和抑制激波附近解的振荡，应用了当地时间步长、残值光顺、焓阻尼、多重网格法等措施加速计算收敛。
• The main numerical method of this code is coming from scheme ( jameson, schimit and turkel ) : using cell-centered finite volume method as spatial discretization tools, and a system of ordinary differential equations for time variable is obtained, which is solved by utilizing five-step runge-kutta scheme as time marching method, introducing artificial dissipation to damp high frequency oscillations near the shock and stagnation point
  本论文采用欧拉方程作为控制方程，利用中心有限体积法进行空间离散，得到对时间变量的常微分方程组，采用龙格库塔多步法进行时间积分，加入人工粘性以消除激波和驻点附近的压力振荡等方法来对naca0012翼型的实际流动进行并行数值模拟。
• The cell-centered symmetric finite volume arithmetic and runge-kutta time stepping scheme are performed to solve euler equation . the two order and four order artificial dissipation is introduced for stability, local time stepping and implicit residual smoothing technique is applied to save computer time
  在求解euler方程方面，采用格心格式的有限体积法进行空间离散，四步runge-kutta法作时间推进，二阶、四阶人工耗散作为稳定措施，还采用当地时间步长和隐式残值光顺提高收敛速度。