| 1. | Application of rng k - model in numeral simulation of turbulent flow in cylinder
模型在内燃机缸内湍流数值模拟中的应用 |
| 2. | Numerical simulation of the turbulent transport in membrane modules by k - model in two dimensions
模型模拟计算膜管内的二维湍流流动 |
| 3. | The realizable k - model is more reasonable in the chamber simulation on the common condition for its little computation amount
可实现性k -双方程模型因其计算量小，耗费机时少，所以在一般的计算条件下用于炉内模拟更为合理。 |
| 4. | Governing equations of a modified k - model is derived in a three - dimensional cylindrical polar coordinate system , and an available equation is produced
首先给出单相螺旋流流场在三维圆柱坐标下的修正-湍流模型的控制方程，得出控制方程组的通用形式。 |
| 5. | As to the gas phase flow field , author chooses the standard k - model , the realizable k - model and the reynolds stress model to make simulation and comparison
对于气相流场，本文作者针对k -双方程模型，可实现性k -双方程模型以及雷诺应力模型进行了模拟比较。 |
| 6. | Based on the unproved vof method , parametric studies have been carried out for random wave slamming on open piled wharf by numerical simulation . the governing equations are reynolds time - averaged equations and two equations k - model
为能反映出波浪冲击过程的湍流特征，以湍流运动方程? ?雷诺方程，及修正的?模型封闭雷诺方程为控制方程。 |
| 7. | The potential problems related to the applications of k - model under the new coordinates are analyzed and the distribution formula of vertical turbulence viscidity coefficients is deduced on the base of logarithmic velocity of flow according to the characteristics of the model
分析了在新坐标系下应用k -模型可能存在的问题，并从模型的特点出发，以对数流速分布为基础，导出了垂向紊动粘性系数的分布公式。 |
| 8. | In the same case of the initial conditions and boundary conditions the expectation result of the realizable k - model and the reynolds stress model is better to the standard k - model , and moreover the expectation result of the reynolds stress model is close to the test result
发现在相同初始条件和边界条件下、可实现性k -双方程模型和雷诺应力模型预报结果优于k -模型，而雷诺应力模型预报结果与试验结果更为一致。 |
| 9. | Numerical calculations are performed by the standard k - model and dynamic mesh capability on vehicles being in crosswinds , running in tunnel , passing by and overtaking each other . their aerodynamic characteristics are analyzed and some different turbulence properties are obtained
本文对fluent进行二次开发,采用动网格技术及标准k -两方程湍流模型对类车体在侧风情况、穿越隧道及超车、交会过程进行三维非定常数值模拟,获得了规律性的认识。 |
| 10. | The numerical simulation of the cabin indicates : the normal k - model is adaptive to simulate the air flow ; the simplen algorithm can satisfy the requirement of calculation for its rapid convergence velocity ; the second order accurate supg in advection discretization scheme can attain more precise result
模拟结果得出如下结论：标准k -模型对系统流动模拟是适合的； simplen算法收敛更快，满足运算的需要；采用二阶supg的对流项分离方案可以获得更高的计算精度。 |
