Low Reynolds number viscous flow in an alveolated duct
Low Reynolds number viscous flow in an alveolated duct
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DOI：
10.1115/1.1784476
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发表时间：
2004-08-01
影响因子：
1.7
通讯作者：
Tsuda, A
中科院分区：
文献类型：
--
作者：
Karl, A;Henry, FS;Tsuda, A
对模型蜂窝状管道内的慢流进行了流动显示研究和补充数值模拟。结果表明，在肺泡或腔中发展的流动类型由腔的深度与宽度的比率和腔体积与导管体积的比率控制。虽然很弱，但空腔中的缓慢旋转流动被认为对空腔壁的对流传热和传质是重要的。这些发现的相关性粒子运输和沉积在肺深处进行了讨论。
Flow visualization studies and supplementary numerical simulations are carried out on slow flow through a model alveolated duct. The results reveal that the type of flow that develops in the alveoli, or cavities, is controlled by the ratio of the depth to the width of the cavity and by the ratio of cavity volume to duct volume. While weak, the slowly rotating flow in the cavity is thought to be important to the convective transport of heat and mass transfer to, or from, the walls of the cavity. The relevance of these finding to particle transport and deposition deep in the lung is discussed.