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Numerical Model of a Nasal Septal Perforation

机译：鼻间隔穿孔的数值模型

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This paper describes numerical simulation of airflow in a nose with a nasal septal perforation. Diseased airflow is compared to airflow in a healthy nasal model. The healthy model has been generated from CT scans from the Antrim Area Hospital ENT clinic and is close to being anatomically accurate. The nasal septal perforation has been superimposed on the healthy geometry using image manipulation software. The flow is modeled as laminar, steady state, with the flow rates corresponding to quiet breathing at rest approximately 165ml/ sec. Healthy flow patterns show that the majority of the flow travels close to nasal septum, in the region close to the middle turbinate. In the diseased case, high shear stresses concentrated at the posterior region of the perforation explain bleeding associated with nasal perforations.
机译：本文介绍了具有鼻腔间穿孔的鼻子中气流的数值模拟。将患病气流与健康鼻模型的气流进行比较。来自Antrim地区医院ENT诊所的CT扫描已经产生了健康的模型，并且接近致剖形准确。使用图像操纵软件叠加在健康几何上的鼻间穿孔。该流程被建模为层流，稳态，流量速率对应于静止约165ml /秒的安静呼吸。健康的流动模式表明，大多数流动在靠近中间鼻甲的区域靠近鼻中隔。在患病的情况下，浓缩在穿孔的后部区域的高剪切应力解释与鼻穿腹部相关的出血。

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