鼻腔结构的三维重建与气体流场数值模拟  

Three Dimensional Reconstruction of the Nasal Cavity Structure and Numerical Simulation of Airflow

作　　者：孙秀珍[1,2] 于申[3] 刘迎曦[3] 郑朝攀[1] 张军[3] 

机构地区：[1]大连医科大学耳鼻喉科 [2]大连理工大学工程力学系工业装备结构分析国家重点实验室,大连116023 [3]大连理工大学工程力学系工业装备结构分析国家重点实验室

出　　处：《生物医学工程学杂志》2006年第6期1162-1165,共4页Journal of Biomedical Engineering

基　　金：国家自然科学基金资助项目(10472025);辽宁省自然科学基金资助项目(20032109)

摘　　要：根据某鼻腔疾病患者的CT图像,用表面重建的方法对该患者的鼻腔结构进行三维重建,根据统计得出的呼吸潮气量以及呼吸周期假设一个呼吸周期内的鼻腔中气流流速的变化。用有限元的方法对鼻腔域中的气体流动进行了数值模拟及分析,并把得到的结果与医学文献中记载的数据相比较,说明本文计算结果是可信的。从文中的数值结果可以定量得到人体呼吸过程中,气体流场在鼻腔中的分布。The nasal cavity structure of one patient was reconstructed by the method of surface rendering based on his CT images, In a respiratory period the change of air flux in the nasal cavity was supposed based on the tidal volume and the respiratory period gained by statistical method. The digital simulation and the analysis of the airflow in the nasal cavity was made by the FEA method and the result was compared with the data from literatures. The comparison indicates that the result is confident. From the result we can observe the airflow distribution quantitatively in the nasal cavity in the period of respiration.

关 键 词：鼻腔 鼻甲 三维重建 气体流场数值模拟 

分 类 号：R318[医药卫生—生物医学工程]