Computational Investigation of Flow Control Methods in the Impeller Rear Cavity
المؤلفون المشاركون
Liu, Guang
Du, Qiang
Liu, Jun
Wang, Pei
Wang, RuoNan
Lian, ZengYan
المصدر
International Journal of Aerospace Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-17، 17ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-02-22
دولة النشر
مصر
عدد الصفحات
17
الملخص EN
In typical median and small aeroengines, the air used to realize the functions such as cooling of turbine blades and disks, sealing of turbine cavities and bearing chambers, adjusting of rotating assembly axial load is normally drawn through the rear cavity of centrifugal impeller, so the thorough understanding of flow characteristics and pressure distribution and the proposal of the corresponding control methods in the cavity are the key to design the rational secondary air system.
With an impeller rear cavity in a small turbofan engine as an object, the current study was dedicated to the investigation of flow control methods in the cavity.
Two methods, namely, baffle and swirl-controlled orifice, were proposed to regulate the pressure loss and distribution in the cavity.
Furthermore, the influence of geometry parameters of the two methods such as the length of baffle, the space between the baffle and rotating disk wall, the orientation, and radial position of swirl-controlled orifice was investigated.
The CFD results show that the swirl-controlled orifice which could deswirl the flow is more effective in regulating the pressure loss and its distribution in cavity than baffle.
The variation of the radial position of the swirl-controlled orifice had little influence on pressure loss but obvious influence on pressure distribution; therefore, decreasing the radial position could reduce the axial load on the rotating disk without changing the outlet pressure.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liu, Guang& Du, Qiang& Liu, Jun& Wang, Pei& Wang, RuoNan& Lian, ZengYan. 2020. Computational Investigation of Flow Control Methods in the Impeller Rear Cavity. International Journal of Aerospace Engineering،Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1167997
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liu, Guang…[et al.]. Computational Investigation of Flow Control Methods in the Impeller Rear Cavity. International Journal of Aerospace Engineering No. 2020 (2020), pp.1-17.
https://search.emarefa.net/detail/BIM-1167997
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liu, Guang& Du, Qiang& Liu, Jun& Wang, Pei& Wang, RuoNan& Lian, ZengYan. Computational Investigation of Flow Control Methods in the Impeller Rear Cavity. International Journal of Aerospace Engineering. 2020. Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1167997
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1167997
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