对鼻子循环对鼻腔空气流的影响的数值模拟
Jing Wei1, Xuan He1, Qing Yang1
1School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.
Scientific reports
|May 27, 2024
概括
鼻子循环显著影响鼻子的气流,压力和温度调节. 拥堵的鼻腔显示出较高的阻力和较强的热控制,而不是更宽的,解堵的侧面.
科学领域:
- 生物医学工程 生物医学工程
- 呼吸系统生理学 呼吸系统生理学
- 计算流体动力学的流体动力学.
背景情况:
- 鼻子循环涉及鼻道的交替拥堵和解堵,影响空气流动力学.
- 了解这些变化对于评估鼻腔功能和相关健康状况至关重要.
研究的目的:
- 通过计算流体动力学 (CFD) 来研究鼻子循环期间的鼻腔气流特征.
- 为了比较空气流,压力,阻力和热调节之间的堵塞和解堵塞鼻侧.
主要方法:
- 从健康个体的CT扫描数据创建了一个3D鼻腔模型.
- 模拟使用形气流速度来模仿人类的呼吸模式.
- 进行了CFD分析,以评估空气流量,压力和温度分布.
主要成果:
- 在鼻侧之间观察到横截面积,体积,气流速度和压力的显著差异.
- 拥挤的侧面呈现出更小的截面,更高的空气流速,压力和鼻子阻力.
- 拥挤的一侧表现出较强的温度调节能力,与解压的一侧相比.
结论:
- 鼻子循环会诱导鼻腔堵塞和解堵的功能差异.
- 鼻腔气流特性和热调节受到鼻子循环的显著影响.
- 在评估影响鼻腔功能的因素时,必须考虑鼻子循环.
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