Harika Senem Kahveci

E-mail
kahveci@metu.edu.tr
Department
Department of Aerospace Engineering
Scopus Author ID
Web of Science Researcher ID
Investigation of a rotor blade with tip cooling subject to a nonuniform temperature profile
Kahveci, Harika Senem (2021-07-01)
© 2021 by ASME.One of the challenges in the design of a high-pressure turbine blade is that a considerable amount of cooling is required so that the blade can survive high temperature levels during engine operation. Anothe...
Effect of Turbine Blade Tip Cooling Configuration on Tip Leakage Flow and Heat Transfer
Sakaoglu, Sergen; Kahveci, Harika Senem (ASME International, 2020-02-01)
The pressure difference between suction and pressure sides of a turbine blade leads to tip leakage flow, which adversely affects the first-stage high-pressure (HP) turbine blade tip aerodynamics. In modern gas turbines, HP...
Investigation of a rotor blade with tip cooling subject to a nonuniform temperature profile
Kahveci, Harika Senem (2020-01-01)
Copyright © 2020 ASMEOne of the challenges in the design of a high-pressure turbine blade is that a considerable amount of cooling is required so that the blade can survive high temperature levels during engine operation. ...
Effect of turbulence modeling for the prediction of flow and heat transfer in rotorcraft avionics bay
Akin, Altug; Kahveci, Harika Senem (Elsevier BV, 2019-12-01)
In this paper, four turbulence models are compared on the basis of the predictions they produce for the flow and heat transfer in the avionics bay area of a rotorcraft. The turbulence models studied are the standard k-s, R...
Effect of cavity depth on thermal performance of a cooled blade tip under rotation
Sakaoglu, Sergen; Kahveci, Harika Senem (2019-11-01)
In this paper, the effect of cavity geometry of a squealer blade tip on its thermal performance is investigated. Numerical analyses were performed for three depth-to-width ratios for a cooled squealer tip. Also investigate...
Gas Turbine Blade Cooling Technology, Advances, and Challenges
Kahveci, Harika Senem (null; 2019-09-30)
Continuous advances in cooling technologies have become necessary since the engine thermal efficiency and power output increase significantly with an increase in the turbine inlet temperature. This study explains blade coo...
Use of artificial neural network in rotorcraft cooling system
Akin, Altug; Kahveci, Harika Senem (2019-07-01)
In this study, an Artificial Neural Network (ANN) is used to determine the surface temperatures of the avionics equipment located in an avionics bay of a rotorcraft. The bay is cooled via a system of a fan that supplies am...
An optimization study for rotorcraft avionics bay cooling
Akin, Altug; Kahveci, Harika Senem (2019-07-01)
In this paper, a computational investigation of a rotorcraft avionics-bay cooling system is carried out. The introduced avionics cooling system utilizes a forced-convection method in which the ambient air is supplied to th...
Effect of Turbine Blade Tip Cooling Configuration on Tip Leakage Flow and Heat Transfer
Sakaoğlu, Sergen; Kahveci, Harika Senem (2019-06-21)
The pressure difference between suction and pressure sides of a turbine blade leads to the so-called phenomenon, the tip leakage flow, which most adversely affects the first-stage high-pressure (HP) turbine blade tip aerod...
EFFECTS OF PIN FIN SHAPE AND SIZE ON TURBINE BLADE TRAILING EDGE FLOW AND HEAT TRANSFER
Tuncel, Tugba; Kahveci, Harika Senem (2019-01-01)
In modern turbine blades, pressure-side cutbacks with film-cooling slots stiffened with lands and pin fins that are embedded in passages are used to cool trailing edges. There are many studies that have investigated these ...
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