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数值模拟鼻甲的切除对鼻腔内气体流场的影响
引用本文:刘迎曦,于申,孙秀珍.数值模拟鼻甲的切除对鼻腔内气体流场的影响[J].生物医学工程学杂志,2008,25(6).
作者姓名:刘迎曦  于申  孙秀珍
作者单位:1. 大连理工大学,工业装备结构分析国家重点实验室,大连,116023
2. 大连医科大学,附属第二医院,耳鼻咽喉科,大连,116023;大连理工大学,工业装备结构分析国家重点实验室,大连,116023
基金项目:国家自然科学基金资助项目  
摘    要:量化研究鼻腔结构的变化对鼻腔内气体流场分布的影响.通过CT图像对鼻腔结构进行三维重建并用有限元方法对气体流场进行数值分析.对重建的鼻腔模型的一侧,分别去掉部分中鼻甲和部分下鼻甲并用有限元方法再次进行数值分析,将得到的结果与原始模型进行比较.观察气体流场分布的变化,在两侧鼻腔的流量分布均有变化,在去掉部分鼻甲的一侧流场和气压的分布也有所改变.通过数值模拟,我们量化的显示了鼻腔结构的变化对鼻腔内气体流场分布的影响.

关 键 词:鼻腔结构  三维重建  数值模拟  有限元方法

Effect of Removing Turbinate on the Airflow Distribution in Nasal Cavity
Liu Yingxi,Yu Shen,Sun Xiuzhen.Effect of Removing Turbinate on the Airflow Distribution in Nasal Cavity[J].Journal of Biomedical Engineering,2008,25(6).
Authors:Liu Yingxi  Yu Shen  Sun Xiuzhen
Institution:State Key Laboratory of Structural Analysis for Industrial Equipment;Dalian University of Technology;Dalian 116023;China;Department of Otorhinalaryngology;the Second Affiliated Hospital of Dalian Medical University;China
Abstract:The effect of variation of nasal structure on airflow distribution was investigated.Based on the CT images of the nose of a healthy female,a three-dimensional nasal model was developed.Two new nasal models were produced by removing part of inferior turbinate and part of middle turbinate in the left side of the original model.The numerical simulation and analysis for airflow field in the three nasal models was conducted by the finite element method.The simulation results from new models were compared with th...
Keywords:Nasal cavity structure Three-dimensional reconstruction Numerical simulation Finite element method  
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