关于格子玻尔兹曼方法在声门气流研究中的应用。
On the application of the lattice Boltzmann method to the investigation of glottal flow.
作者信息
Kucinschi Bogdan R, Afjeh Abdollah A, Scherer Ronald C
机构信息
Mechanical, Industrial and Manufacturing Engineering Department, University of Toledo, Ohio 43606, USA.
出版信息
J Acoust Soc Am. 2008 Jul;124(1):523-34. doi: 10.1121/1.2924137.
The production of voice is directly related to the vibration of the vocal folds, which is generated by the interaction between the glottal flow and the tissue of the vocal folds. In the current study, the aerodynamics of the symmetric glottis is investigated numerically for a number of static configurations. The numerical investigation is based on the lattice Boltzmann method (LBM), which is an alternative approach within computational fluid dynamics. Compared to the traditional Navier-Stokes computational fluid dynamics methods, the LBM is relatively easy to implement and can deal with complex geometries without requiring a dedicated grid generator. The multiple relaxation time model was used to improve the numerical stability. The results obtained with LBM were compared to the results provided by a traditional Navier-Stokes solver and experimental data. It was shown that LBM results are satisfactory for all the investigated cases.
声音的产生与声带的振动直接相关，声带振动是由声门气流与声带组织之间的相互作用产生的。在当前的研究中，针对多种静态构型对对称声门的空气动力学进行了数值研究。该数值研究基于格子玻尔兹曼方法（LBM），这是计算流体动力学中的一种替代方法。与传统的纳维 - 斯托克斯计算流体动力学方法相比，LBM相对易于实现，并且无需专门的网格生成器就能处理复杂的几何形状。使用了多重弛豫时间模型来提高数值稳定性。将LBM获得的结果与传统纳维 - 斯托克斯求解器提供的结果以及实验数据进行了比较。结果表明，对于所有研究的情况，LBM的结果都令人满意。
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