应用一种轴对称格子 - Boltzmann 模型模拟了圆管通道内脉动流.首先对a=9.36,Re=319工况下的正弦压力梯度驱动的脉动流进行模拟,模拟的径向无量纲速度和解析解吻合很好,还应用此模型研究了Womersley数对脉动流的影响.模拟结果表明,此轴对称格子-Boltzmann模型能有效模拟圆管脉动流.最后应用该模型对局部扩张管管内流动进行初步的模拟研究,并研究了不同扩张程度对流动的影响.
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