... 非线性不不变性 nonlinear instability 数值粘性 numerical viscosity 年夜涡模拟 large eddy simulation ...
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In liquid and smoke simulation using Euler model, the common Semi-Lagrangian Method(SLM) has numerical viscosity due to excessive averaging steps, and the surface extracting method will further smear out details of water surface.
半拉格朗日方法在欧拉模型的液体与烟雾模拟中，因均值运算过多而存在数值粘性的问题，且表面提取算法会抹平液体表面的细节。
参考来源 - 稳定且维护细节的液体与烟雾模拟算法·2,447,543篇论文数据，部分数据来源于NoteExpress
The negative eject theory is employed to explain the phenomena that the wake over-turn is due to large numerical viscosity.
文中应用负射流理论解释三维计算中较大的数值粘性带来的尾迹偏移现象。
The matching relation between the viscosity and the mesh size was obtained using planar approximate method and integral method in the numerical modeling of divergent detonation.
分别应用平面近似法和积分方法推导出在散心爆轰的数值模拟中，人为粘性系数和空间步长之间的匹配关系。
The numerical simulation has been carried out to investigate the viscosity flow in the compressor cascades with curved blades of different circumferential bow angles.
为了改善扩压叶栅气动性能，采用拟压缩性方法对不同周向弯曲角度的正弯曲叶片压气机叶栅内三维粘性流场进行了数值模拟。
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