1D 网络计算流体动力学,用于评估暴露于水泥灰的受试者的区域压力
Minh Tam Tran1, Quoc Hung Nguyen1, Xinguang Cui2
1School of Mechanical Engineering, Kyungpook National University & IEDT, Daegu, South Korea.
Journal of biomechanics
|January 9, 2025
概括
暴露于水泥灰尘会严重损害肺功能,降低生命能力和空气流量. 这项研究使用肺功能测试和1D CFD来揭示受影响个体的气道变化和压力变化.
科学领域:
- 环境健康 环境健康
- 呼吸系统医学 呼吸系统医学
- 计算生物学 计算生物学
背景情况:
- 水泥灰是主要的空气污染物,与呼吸道疾病有关.
- 城市化和建设增加了居民的暴露风险.
- 长期吸入水泥灰会降低肺功能,改变呼吸道机制.
研究的目的:
- 为了研究水泥灰暴露对肺功能的影响.
- 使用1D CFD分析气道结构和压力变化.
- 为了区分健康和暴露个体之间的呼吸功能.
主要方法:
- 进行了肺功能测试 (PFT).
- 采用了一维计算流体动力学 (1D CFD) 建模.
- 统计分析比较了健康群体和暴露于水泥尘埃的群体.
主要成果:
- 暴露于水泥灰尘的参与者在1秒内减少了强迫生命能力 (FVC%) 和强迫呼吸量 (FEV1%).
- 在吸入和呼出过程中观察到区域气道压力变化升高.
- 呼吸道结构变化与暴露个体的压力变化相关.
结论:
- 暴露在水泥灰中会对肺功能和呼吸道生理产生不利影响.
- 1D CFD提供了一种具有成本效益的方法来评估气道压力.
- 这些发现有助于诊断和规划暴露于水泥灰的个体的治疗.
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