Effect of Secondary Flows on Heat Transfer of a Gas Turbine Blade
International Journal of Rotating Machinery • 2013
معلومات البحث
المؤلفون
HM El-Batsh; SA Nada; SN Abdo; AA El-Tayesh
الكلمات المفتاحية
Gas turbine blades, Heat transfer, Secondary flow, Computational fluid dynamics
المجلة العلمية
International Journal of Rotating Machinery
الناشر
Hindawi Publishing Corporation
المجلد
2013,
العدد
797841
الصفحات
13
publication.type
International
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
This study presents experimental and numerical investigation for three-dimensional heat transfer characteristics in a turbine
blade. An experimental setup was installed with a turbine cascade of five-blade channels. Blade heat transfer measurements were
performed for the middle channel under uniform heat flux boundary conditions. Heat was supplied to the blades using twentynine
electric heating strips cemented vertically on the outer surface of the blades. Distributions of heat transfer coefficient were
obtained at three levels through blade height by measuring surface temperature distribution using thermocouples. To understand
heat transfer characteristics, surface static pressure distributions on blade surface were also measured. Numerical investigation
was performed as well to extend the investigation to locations other than those measured experimentally. Three-dimensional
nonisothermal, turbulent flow was obtained by solving Reynolds averaged Navier-Stokes equations and energy equation.The shear
stress transport
blade. An experimental setup was installed with a turbine cascade of five-blade channels. Blade heat transfer measurements were
performed for the middle channel under uniform heat flux boundary conditions. Heat was supplied to the blades using twentynine
electric heating strips cemented vertically on the outer surface of the blades. Distributions of heat transfer coefficient were
obtained at three levels through blade height by measuring surface temperature distribution using thermocouples. To understand
heat transfer characteristics, surface static pressure distributions on blade surface were also measured. Numerical investigation
was performed as well to extend the investigation to locations other than those measured experimentally. Three-dimensional
nonisothermal, turbulent flow was obtained by solving Reynolds averaged Navier-Stokes equations and energy equation.The shear
stress transport
أعضاء هيئة التدريس - جامعة بنها