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使用鼻腔和鼻鼻腔三维模型进行鼻腔阻力数值模拟

Shoji Kaneda¹, Fumiyuki Goto, Kenji Okami

¹Department of Otolaryngology, Head and Neck Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan. s.kaneda@tokai.ac.jp.

The Tokai journal of experimental and clinical medicine

|June 25, 2023

概括

这项研究开发了一种新的计算机模型来分析鼻腔空气流和阻力. 研究结果表明,鼻长度和鼻腔尺寸会影响空气流阻.

科学领域:

生物医学工程生物医学工程
计算流体动力学的流体动力学.
人体解剖学解剖学解剖学

背景情况:

鼻腔阻力显著影响呼吸功能,并受到复杂的鼻内气流动力学的影响.
之前的研究使用了物理模型;这项研究引入了一种先进的计算方法来进行详细分析.

研究的目的:

开发和验证一种用于分析鼻内气流的新型计算机模型.
确定影响鼻腔抵抗的关键解剖学参数.
为了将模拟结果与已确定的鼻腔测量测量结果进行比较.

主要方法:

从两名健康志愿者的CT扫描中开发了针对患者的计算流体动力学 (CFD) 模型.
使用 ANSYS Fluent 软件来模拟使用纳维埃-斯托克斯方程的 3D 不压缩空气流.
计算每个模型的鼻腔阻力,并与鼻腔测量数据进行比较.

主要成果:

该CFD模型为个别鼻腔 (右,左和总) 提供了计算的鼻抵抗值.
模拟值显示了两种模型之间的差异,表明了解剖学影响.
该研究表明,使用CFD用于鼻腔抵抗评估的可行性.

结论:

鼻腔阻力受到解剖学特征的影响,例如下轮长度和和鼻的横截面积.
开发的计算机模型显示了理解鼻腔气流动力学的前景.
建议使用扩展模型进行进一步的研究,以验证这些发现.

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