Nasal air temperature and airflow during respiration in numerical simulation based on multislice computed tomography scan
Nasal air temperature and airflow during respiration in numerical simulation based on multislice computed tomography scan
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DOI：
10.1177/194589240602000220
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发表时间：
2006-03-01
期刊：
影响因子：
--
通讯作者：
Pless, D
中科院分区：
文献类型：
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作者：
Lindemann, J;Keck, T;Pless, D
背景：充分的鼻腔空调是最重要的。由于鼻腔空调的详细过程还没有完全了解，数值模拟的鼻内温度分布和气流模式在吸气和呼气performed.Methods：一个三维模型的基础上的计算机断层扫描重建的人的鼻子。一个计算流体动力学应用程序被用来显示温度和气流在呼吸的基础上随时间变化的边界conditions.Results：绝对空气温度和速度值的变化取决于检测部位和检测时间。低速区和湍流区显示出气温的明显变化。结果表明，涡状区是热交换的主要区域。数值计算结果显示出很好的可比性，我们在体内measurement.Conclusion：基于计算流体力学的温度和气流的数值模拟是可行的，提供全新的信息和洞察到空气调节的人的鼻子。
Background: Adequate nasal air-conditioning is of greatest importance. Because detailed processes of nasal air-conditioning still are not completely understood, numerical simulations of intranasal temperature distribution and airflow patterns during inspiration and expiration were performed.Methods: A three-dimensional model of the human nose based on computed tomography scans was reconstructed. A computational fluid dynamics application was used displaying temperature and airflow during respiration based on time-dependent boundary conditions.Results: Absolute air temperature and velocity values vary depending on detection site and time of detection. Areas of low velocities and turbulence show distinct changes in air temperature. The turbinate areas prove to be the main regions for heat exchange. The numerical results showed excellent comparability to our in vivo measurements.Conclusion: Numerical simulation of temperature and airflow based on computational fluid dynamics is feasible providing entirely novel information and an insight into air-conditioning of the human nose.