采用更加精确和更加计算有效的方法，我们通常的目的在于模拟更大更加真实的体系，探索长时间跨度的过程事件。
We generally aim to model larger and more realistic systems and to explore processes that happen on longer timescales, with more accurate and more computationally efficient approaches.
基于计算流体动力学，采用数值模拟的方法研究了车桥耦合体系气动力特性和风压分布。
Aerodynamic characteristics and wind pressure distribution of vehicle-bridge coupled system is stud-ied based on numerical simulation by computational fluid dynamic method.
采用ALE算法，选用与流动方向较一致的网格体系，对四角切向燃烧煤粉锅炉炉膛内冷态流场进行了模拟。
The cold flow field in the tangential firing boiler furnace is numerically studied by using ALE algorithm together with a grid system which is consistent with the flow direction in the furnace.
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