基于合3D-1D-0D模型的肺气流的多尺度模拟
Fei Jiang1, Tsunahiko Hirano2, Chenyang Liang3
1Department of Mechanical Engineering, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Tokiwadai, Ube, 7558611, Yamaguchi, Japan; Biomedical Engineering Center (YUBEC), Tokiwadai, Ube, 7558611, Yamaguchi, Japan.
Computers in biology and medicine
|February 17, 2024
概括
这项研究引入了一种新的3D-1D-0D多尺度模型,用于模拟肺气流,增强呼吸系统疾病研究. 该方法准确地模拟空气流和肺部变形,有助于诊断诸如肺纤维化等疾病.
科学领域:
- 多尺度建模的多尺度建模
- 计算流体动力学 计算流体动力学
- 呼吸系统生理学 呼吸系统生理学
背景情况:
- 呼吸系统是一个复杂的多层次系统.
- 模拟肺气流需要在不同尺度上整合各种物理和生物过程.
- 现有的模型可能缺乏对整个呼吸系统的全面代表性.
研究的目的:
- 开发和验证一种新的3D-1D-0D多尺度方法来模拟肺气流.
- 为了将详细的空气流动力学与肺部变形相结合.
- 为了研究肺纤维化对吸入空气体积的影响.
主要方法:
- 气管和支气管的3D计算流体动力学模型.
- 一个用于末端支气管的1D管道模型.
- 一个对呼吸道支气管和气泡的0D双相混合模型,加上肺部变形.
- 通过保持质量/动量和在接口上的压力连续性来实现合.
主要成果:
- 拟议的3D-1D-0D多尺度模型通过与以前的模型进行比较来证明其有效性和适用性.
- 该模型成功模拟了肺气流和肺部变形.
- 该研究使用开发的模型研究了肺纤维化患者吸入空气体积减少的情况.
结论:
- 3D-1D-0D多尺度方法为肺气流模拟提供了一个全面和现实的框架.
- 这种方法有可能提高呼吸道疾病的诊断和治疗.
- 该模型为了解呼吸功能和疾病进展提供了有价值的工具.
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