Suh Jungsoo, Frankel Steven H
Maurice J. Zucrow Laboratories, School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907-2014, USA.
J Acoust Soc Am. 2008 Mar;123(3):1237-40. doi: 10.1121/1.2836783.
Flow through a rigid model of the human vocal tract featuring a divergent glottis was numerically modeled using the Reynolds-averaged Navier-Stokes approach. A number of different turbulence models, available in a widely used commercial computational fluid dynamics code, were tested to determine their ability to capture various flow features recently observed in laboratory experiments and large eddy simulation studies. The study reveals that results from unsteady simulations employing the k-omega shear stress transport model were in much better agreement with previous measurements and predictions with regard to the ability to predict glottal jet skewing due to the Coanda effect and the intraglottal pressure distribution or related skin friction coefficient, than either steady or unsteady simulations using the Spalart-Allmaras model or any other two-equation turbulence model investigated in this study.
使用雷诺平均纳维-斯托克斯方法对具有发散声门的人体声道刚性模型中的流动进行了数值模拟。在一个广泛使用的商业计算流体动力学代码中可用的多种不同湍流模型进行了测试，以确定它们捕捉最近在实验室实验和大涡模拟研究中观察到的各种流动特征的能力。该研究表明，与使用Spalart-Allmaras模型或本研究中研究的任何其他两方程湍流模型进行的稳态或非稳态模拟相比，采用k-ω剪切应力输运模型的非稳态模拟结果在预测由于康达效应导致的声门射流偏斜以及声门内压力分布或相关表面摩擦系数方面，与先前的测量和预测结果更为一致。
