Performance of Partial and Cavity Type Squealer Tip of a HP Turbine Blade in a Linear Cascade
المؤلفون المشاركون
Camci, Cengiz
Kavurmacioglu, Levent
Maral, Hidir
Senel, Cem Berk
المصدر
International Journal of Aerospace Engineering
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-05-02
دولة النشر
مصر
عدد الصفحات
11
الملخص EN
Three-dimensional highly complex flow structure in tip gap between blade tip and casing leads to inefficient turbine performance due to aerothermal loss.
Interaction between leakage vortex and secondary flow structures is the substantial source of that loss.
Different types of squealer tip geometries were tried in the past, in order to improve turbine efficiency.
The current research deals with comparison of partial and cavity type squealer tip concepts for higher aerothermal performance.
Effects of squealer tip have been examined comprehensively for an unshrouded HP turbine blade tip geometry in a linear cascade.
In the present paper, flow structure through the tip gap was comprehensively investigated by computational fluid dynamic (CFD) methods.
Numerical calculations were obtained by solving three-dimensional, incompressible, steady, and turbulent form of the Reynolds-averaged Navier-Stokes (RANS) equations using a general purpose and three-dimensional viscous flow solver.
The two-equation turbulence model, shear stress transport (SST), has been used.
The tip profile belonging to the Pennsylvania State University Axial Flow Turbine Research Facility (AFTRF) was used to create an extruded solid model of the axial turbine blade.
For identifying optimal dimensions of squealer rim in terms of squealer height and squealer width, our previous studies about aerothermal investigation of cavity type squealer tip were utilized.
In order to obtain the mesh, an effective parametric generation has been utilized using a multizone structured mesh.
Numerical calculations indicate that partial and cavity squealer designs can be effective to reduce the aerodynamic loss and heat transfer to the blade tip.
Future efforts will include novel squealer shapes for higher aerothermal performance.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Kavurmacioglu, Levent& Maral, Hidir& Senel, Cem Berk& Camci, Cengiz. 2018. Performance of Partial and Cavity Type Squealer Tip of a HP Turbine Blade in a Linear Cascade. International Journal of Aerospace Engineering،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1167046
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Kavurmacioglu, Levent…[et al.]. Performance of Partial and Cavity Type Squealer Tip of a HP Turbine Blade in a Linear Cascade. International Journal of Aerospace Engineering No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1167046
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Kavurmacioglu, Levent& Maral, Hidir& Senel, Cem Berk& Camci, Cengiz. Performance of Partial and Cavity Type Squealer Tip of a HP Turbine Blade in a Linear Cascade. International Journal of Aerospace Engineering. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1167046
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1167046
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