Department of Aerospace Engineering

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Yaman, Yavuz (110)
Tuncer, İsmail Hakkı (98)
Çöker, Demirkan (98)
Şahin, Melin (92)
Eyi, Sinan (85)

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Aerospace Engineering (60)
Mechanical Engineering (60)
Aerospace engineering. (59)
Airplanes (48)
Mechanics of Materials (48)

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1984 - 1989 (16)
1990 - 1999 (169)
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2010 - 2019 (1181)
2020 - 2021 (105)

Recent Submissions

The influence of flow forming on the precipitation characteristics of Al2024 alloys
Karakaş, Aptullah; Fenercioğlu, Tevfik Ozan; Yalçınkaya, Tuncay (2021-09-15)
© 2021 Elsevier B.V.Aluminum alloys are heat treated for better specific strength. In certain cases, an intermediate cold work is applied between solution heat treatment and aging. In this study, a specific tube forming te...
DETERMINATION OF WAKE SHAPES BEHIND A WIND TURBINE THROUGH CFD SIMULATIONS AND COMPARISON WITH ANALYTICAL WAKE MODELS
Adam, Ali Ata; Deniz, Olcay Nurtaç; Sezer Uzol, Nilay; Uzol, Oğuz (2021-09-10)
In this paper, wake shapes of wind turbine rotors are investigated by using CFD and analytical wake models. The flow around the NTNU model turbine is simulated using the Reynolds-Averaged Navier-Stokes Equations with Spala...
AERODYNAMIC ANALYSIS OF SUPERSONIC FLOW OVER A SIMPLE AIRCRAFT GEOMETRY BY USING CST AND PANEL METHODS
Uğur, Levent; Turan, Sena; Gedik, Ramazan Kürşat; Adam, Ali Ata; Sezer Uzol, Nilay; Ertem, Sercan; Ayan, Erdem (2021-09-10)
In this paper, the aerodynamic properties of a selected aircraft geometry are calculated in supersonic flow condition using PANAIR. PANAIR is an open-source high-order panel method solver for irrotational and invisci...
FAST AERODYNAMIC ANALYSIS AND DESIGN OF A JET AIRCRAFT BY USING PANEL METHOD
Kumser, Fatma Zülal; Öztürk, Ümran; Kıldiş, Pamir; Adam, Ali Ata; Sezer Uzol, Nilay; Ertem, Sercan; Ayan, Erdem (2021-09-10)
Fast and parametrical aerodynamic analyses for design of high speed jet aircraft is important especially during the initial design phases. In this study, different wing/body configurations defined with specific geome...
Aerodynamic Optimization of a Swept Horizontal Axis Wind Turbine Blade
Kaya, Mehmet Numan; Kose, Faruk; Uzol, Oğuz; Ingham, Derek; Ma, Lin; Pourkashanian, Mohamed (2021-09-01)
The aerodynamic shapes of the blades are still of high importance and various aerodynamic designs have been developed in order to increase the amount of energy production. In this study, a swept horizontal axis wind turbin...
FOREBODY OPTIMIZATION OF A JET TRAINER AIRCRAFT USING RESPONSE SURFACE METHODOLOGY WITH GENETIC ALGORITHM
Kandemir , Ömer; Tuncer, İsmail Hakkı; Department of Aerospace Engineering (2021-9-1)
The aerodynamic design of an aircraft's forebody geometry has a significant impact on its performance and stability. Although most studies on aircraft performance have focused on optimizing wing-like structures, the cont...
Computational-Experimental Design Framework for Laser Path Length Controller
Fenercioglu, Tevfik Ozan; Yalçınkaya, Tuncay (2021-08-01)
The application areas of piezoelectric materials are expanding rapidly in the form of piezo harvesters, sensors and actuators. A path length controller is a high-precision piezoelectric actuator used in laser oscillators, ...
Improvement in the spring analogy mesh deformation method through the cell-center concept
Yang, Yosheph; Özgen, Serkan; Kim, Haedong (2021-08-01)
© 2021 Elsevier Masson SASThe mesh deformation method is an important topic in studies involving moving boundary problems. As one of the main approaches, this method has been applied in various related studies. To address ...
A Study to Evaluate Scales in Some Turbulent Flows in View of Quantic Behavior of Turbulence Using Experimental Results
Bekoğlu, Elif; Çelenligil, Mehmet Cevdet; Çıray, Cahit; Department of Aerospace Engineering (2021-8)
The knowledge of the energy contents, sizes, and lifetimes of eddies is necessary to understand the structure of turbulent flows. The spectral approach can provide the frequency-dependent energy spectrum, which helps to fi...
2D and 3D simulations of dynamic delamination in curved unidirectional CFRP laminates subjected to moment/axial combined loading
Ata, Tamer Tahir; Çöker, Demirkan (2021-07-15)
© 2021 Elsevier LtdDynamic failure of 30-ply curved unidirectional CFRP laminate under quasi-static moment/axial combined loading used in the experiments of Tasdemir (2018) is investigated numerically. 2D and 3D explicit f...
Experimental and numerical investigation of fretting failure in lug-bush members under cyclic loading
Özen, Emine Burçin; Çöker, Demirkan; Department of Aerospace Engineering (2021-7)
In this study, experimental and numerical work to investigate the mechanisms occurring at the contact region of the lug-bush members under cyclic loading are presented. Post-mortem macroscopic and microscopic investigation...
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...
Conjugate Analysis of Silica-Phenolic Charring Ablation Coupled with Interior Ballistics
Alanyalioglu, Cetin Ozan; Özyörük, Yusuf (2021-07-01)
Because of its excellent insulation capability, the usage of a silica-phenolic charring ablator as a nozzle liner is a common practice in the solid rocket motor industry. During the design of a solid rocket motor employing...
Effect of hydrogen jets in supersonic mixing using strut injection schemes
Jeyakumar, S.; Kandasamy, Jayaraman; Karaca, Mehmet; Karthik, K.; Sivakumar, R. (2021-06-28)
© 2021 Hydrogen Energy Publications LLCThe prevalence of complex phenomena associated with the fuel mixing of a supersonic stream in scramjet combustor is inherently occurred due to the short residence time. An efficient i...
Attitude and Orbit Control of a Solar Sail Spacecraft for Responsive Operational Concept
Polat, Halis Can; Tekinalp, Ozan; Department of Aerospace Engineering (2021-6-15)
Utilization of the propellant-free thrust capability of Solar Sail Spacecraft (SSS) is addressed. For this purpose, an elliptical orbit with a very low perigee altitude and an apogee altitude high enough to have solar sail...
ESTIMATION OF AERODYNAMIC LOADS OF A PROPELLER THROUGH IMPROVED BLADE ELEMENT AND MOMENTUM THEORY AND PROPELLER DESIGN OPTIMIZATION
KAYA, DERYA; Kutay, Ali Türker; Department of Aerospace Engineering (2021-6)
This study focuses on accurate prediction of total forces and moments acting on a propeller in all flight conditions through Blade Element and Momentum Theory (BEMT) and design optimization of a UAV propeller. Under vario...
Experimental investigation of tip anhedral effects on the aerodynamics of a model helicopter rotor in hover
Uluocak, Sinem; Perçin, Mustafa; Uzol, Oğuz (2021-06-01)
© 2021 Elsevier Masson SASThis study experimentally investigates the effects of tip anhedral on the rotor aerodynamic performance and the tip vortex characteristics in hovering flight. A five-bladed scaled helicopter rotor...
Long term and safe relative orbit design for heterogeneous spacecraft clusters
Yaglioglu, Burak; Tekinalp, Ozan (2021-06-01)
© 2020 COSPARThe problem of obtaining long term relative orbit configurations for spacecraft clusters with realistic operational considerations such as safety, station keeping and inter-spacecraft distances is addressed. T...
Adjoint Based Aerodynamic Shape Optimization of Subsonic Submerged Intake
AHMED, ALI; Tuncer, İsmail Hakkı; Department of Aerospace Engineering (2021-5-04)
In this study the aerodynamic shape optimization of subsonic submerged intake is performed. The total pressure at the aerodynamic interface plane and lift are employed as objective functions. Drag is constrained and emp...
Effects of inflow boundary layer on the wake of a radially non-uniform porous disk
Abdulrahim, Anas; Akpolat, M. Tuğrul; Hassanein, Abdelrahman; Perçin, Mustafa; Uzol, Oğuz (2021-05-01)
© 2021 Author(s).This study presents the results of an experimental investigation focusing on the effects of the inflow boundary layer on the wake characteristics of a 0.12 m diameter porous disk with radially non-uniform ...
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