Numerical Investigation of Flow Characteristics in the Obstructed Realistic Human Upper Airway
المؤلفون المشاركون
Liu, Xingli
Yan, Weiwei
Liu, Yang
Choy, Yat Sze
Wei, Yikun
المصدر
Computational and Mathematical Methods in Medicine
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-09-20
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
The flow characteristics in the realistic human upper airway (HUA) with obstruction that resulted from pharyngeal collapse were numerically investigated.
The 3D anatomically accurate HUA model was reconstructed from CT-scan images of a Chinese male patient (38 years, BMI 25.7).
The computational fluid dynamics (CFD) with the large eddy simulation (LES) method was applied to simulate the airflow dynamics within the HUA model in both inspiration and expiration processes.
The laser Doppler anemometry (LDA) technique was simultaneously adopted to measure the airflow fields in the HUA model for the purpose of testifying the reliability of LES approach.
In the simulations, the representative respiration intensities of 16.8 L/min (slight breathing), 30 L/min (moderate breathing), and 60 L/min (severe breathing) were conducted under continuous inspiration and expiration conditions.
The airflow velocity field and static pressure field were obtained and discussed in detail.
The results indicated the airflow experiences unsteady transitional/turbulent flow in the HUA model under low Reynolds number.
The airflow fields cause occurrence of forceful injection phenomenon due to the narrowing of pharynx caused by the respiratory illness in inspiration and expiration.
There also exist strong flow separation and back flow inside obstructed HUA owing to the vigorous jet flow effect in the pharynx.
The present results would provide theoretical guidance for the treatment of obstructive respiratory disease.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liu, Xingli& Yan, Weiwei& Liu, Yang& Choy, Yat Sze& Wei, Yikun. 2016. Numerical Investigation of Flow Characteristics in the Obstructed Realistic Human Upper Airway. Computational and Mathematical Methods in Medicine،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1100102
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liu, Xingli…[et al.]. Numerical Investigation of Flow Characteristics in the Obstructed Realistic Human Upper Airway. Computational and Mathematical Methods in Medicine No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1100102
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liu, Xingli& Yan, Weiwei& Liu, Yang& Choy, Yat Sze& Wei, Yikun. Numerical Investigation of Flow Characteristics in the Obstructed Realistic Human Upper Airway. Computational and Mathematical Methods in Medicine. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1100102
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1100102
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر