Deterioration of Thermal Barrier Coated Turbine Blades by Erosion

المؤلفون المشاركون

Swar, Rohan
Hamed, Awatef
Shin, Dongyun
Miller, Robert A.
Woggon, Nathanial

المصدر

International Journal of Rotating Machinery

العدد

المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-10، 10ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2012-11-22

دولة النشر

مصر

عدد الصفحات

10

التخصصات الرئيسية

هندسة ميكانيكية

الملخص EN

A combined experimental and computational study was conducted to investigate the erosion of thermal barrier coated (TBC) blade surfaces by alumina particles ingestion in a single-stage turbine.

In the experimental investigation, tests were performed to determine the erosion rates and particle restitution characteristics under different impact conditions.

The experimental results show that the erosion rates increase with increased impingement angle, impact velocity, and temperature.

In the computational simulations, an Euler-Lagrangian two-stage approach is used in obtaining numerical solutions to the three-dimensional compressible Reynolds-Averaged Navier-Stokes equations and the particles equations of motion in each blade passage reference frame.

User defined functions (UDFs) were developed to represent experimentally based correlations for particle surface interaction models and TBC erosion rates models.

UDFs were employed in the three-dimensional particle trajectory simulations to determine the particle rebound characteristics and TBC erosion rates on the blade surfaces.

Computational results are presented in a commercial turbine and a NASA-designed automotive turbine.

The similarities between the erosion patterns in the two turbines are discussed for uniform particle ingestion and for particle ingestion concentrated in the inner and outer 5% of the stator blade span to represent the flow cooling of the combustor liner.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Swar, Rohan& Hamed, Awatef& Shin, Dongyun& Woggon, Nathanial& Miller, Robert A.. 2012. Deterioration of Thermal Barrier Coated Turbine Blades by Erosion. International Journal of Rotating Machinery،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-484143

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Swar, Rohan…[et al.]. Deterioration of Thermal Barrier Coated Turbine Blades by Erosion. International Journal of Rotating Machinery No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-484143

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Swar, Rohan& Hamed, Awatef& Shin, Dongyun& Woggon, Nathanial& Miller, Robert A.. Deterioration of Thermal Barrier Coated Turbine Blades by Erosion. International Journal of Rotating Machinery. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-484143

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-484143