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中文摘要：
为了模拟出具有实时性和真实感的烟雾效果，分析了传统烟雾的模拟方法，提出了一种基于OSG平台下的实时烟雾模拟方法。该方法采用流体力学纳维．斯托克斯方程组作为基本物理模型，通过添加漩涡约束力来达到真实性的要求。由于NS方程求解的复杂性和CPU计算的限制性，在方程解算上，提出一种基于GPU的采用半拉格朗日方法、雅克比迭代法等稳定的求解方法，并结合体绘制技术来实现实时烟雾的模拟。实验结果表明，该方法能快速模拟出实时、逼真的烟雾效果。
英文摘要：
To simulate a real-time and realistic smoke effects, an OSG platform-based method to simulate the fog in real-time is proposed, by analyzing the traditional simulation methods of fog. Navier-Stokes equations as the basic physical model are used, and a vorticity confinement force is added to achieve authenticity. Because of the complexity of the Navier-Stokes equations and the restrictive of CPU calculation, in numerical calculation, a graphic processing unit （GPU） -based method which realized the real-time simulation by using such stable solving method as Semi-Lagrangian scheme, Jacobi iteration method is designed. The experimental results show that the method is able to simulate smoke quickly with real-time and realistic characteristic.
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