论文标题
颗粒按需动力学模型的多尺度分析
Multiscale analysis of the particles on demand kinetic model
论文作者
论文摘要
我们对按需动力学模型进行了彻底研究。简要介绍了该方法后,进行了适当的多尺度分析以得出模型的流体动力极限。在此分析中,考虑到时空依赖的共同参考帧的效果。这可以被视为应用于具有全局恒定参考帧的晶格玻尔兹曼模型的常规Chapman-Enskog分析的概括。目标基准的进一步模拟提供了证实理论预测的数值证据。
We present a thorough investigation of the particles on demand kinetic model. After a brief introduction of the method, an appropriate multiscale analysis is carried out to derive the hydrodynamic limit of the model. In this analysis, the effect of the time-space dependent comoving reference frames are taken into account. This could be regarded as a generalization of the conventional Chapman-Enskog analysis applied to the lattice Boltzmann models which feature global constant reference frames. Further simulations of target benchmarks provide numerical evidence confirming the theoretical predictions.