Department of Aerospace Engineering, Conference / Seminar

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Recent Submissions

Strengthening of Secondary-Bonded Carbon Fiber/Epoxy Joints via Interfacial Reinforcement with Non-woven Thermoplastic Veils Güloğlu, Görkem Eğemen; Akış, Barış; Çevik, Ahmet (2026-05-13) This study investigates a refined methodology for enhancing the mechanical performance of secondary-bonded carbon fiber reinforced epoxy composites by incorporating non-woven veils directly into the bondline. While adhesiv...
ToF-Based Excitation and Damage Localization in a Steel Plate Using Ultrasonic Guided Waves with Predefined Pseudo-Sensor Triplets Aktaşoğlu, Seyfullah; Güloğlu, Görkem Eğemen (2026-05-01) Time-of-flight (ToF) features derived from ultrasonic guided waves (UGWs) provide a practical and computationally efficient basis for rapid damage localization in plate-like structures. This study presents a compact MATLAB...
Matrix Raster Angle Effects on Tensile Properties of Additively Manufactured Unidirectional Carbon Fiber/Polyamide Composites Huber, Carlotta Nicole; Güloğlu, Görkem Eğemen (2026-05-01) This study investigates the mechanical implications of decoupling the matrix raster angle from the reinforcement fiber angle in additively manufactured carbon fiber/polyamide composites. Three specimen groups were manufact...
Attitude Estimation for Resident Space Objects from Light Curves Using Blender-Based Simulations Tuzcu, Gülce; Söken, Halil Ersin (2026-03-06)
Modelling of Damage and Failure in Multi-Phase Microstructures through Phase Field Fracture Erdoğan, Can; Yalçınkaya, Tuncay (2026-01-01) Multi-phase materials, such as fiber reinforced composites, metal matrix composites, or dual-phase steels, contain two or more contrasting phases within their microstructures. The coexistence of hard/brittle phases with so...
Investigation of Ignition Overpressure Over a Launch Pad using Open-Source CFD Solvers Danışan, Ercan Umut; Iriolya, Tohid Ghorbani; Duru, Murat Özüm; Gündem, Doğukan; Eyi, Sinan (2026-01-01) During rocket ignition and liftoff, strong transient pressure waves propagate within the launch pad environment and impinge on the launch vehicle, flame deflector and surrounding structures. Controlling pressure waves play...
Propulsive Property Prediction Utilizing Neural Networks with Varying Geometry Inputs Erikli, Hüseyin Metin; Solakoğlu, Erhan; Kurtuluş, Dilek Funda (2026-01-01) In this study, artificial neural network (ANN) applications were used to predict propulsive properties of small propellers utilizing experimental data and detailed geometry information of the propellers. Scaled conjugate g...
Aircraft Structural Dynamics and Aeroelasticity Approaches: Recent Contributions from the Aerospace Engineering of Middle East Technical University, Türkiye Yaman, Yavuz (2026-01-01) This study presents the details and also gives some preliminary results of current and ongoing research about the alleviation of aeroelastic instabilities of some air vehicles and helicopter structural dynamics. Studies ab...
Impact of Shock Boundary Layer Interaction on Swirl Characteristics in Supersonic Intakes with Bleed System Özcan, Muhammed Enes; Sezer Uzol, Nilay (2026-01-01) Flow quality at the engine face, in particular total pressure distribution and swirl characteristics, is critical for the aerodynamic performance and stability of external compression supersonic inlets. Shock wave boundary...
Swirl and Jet Flow Interaction over Film-Cooling Plates Arslan Arslane@Metu.Edu.Tr, Enes; Başkan Perçin, Özge; Perçin, Mustafa; Uzol, Oğuz; Turkeri, Hasret (2026-01-01) This study experimentally investigates the film-cooling effectiveness and associated flowfield characteristics of two plate geometries subjected to both uniform and swirling inflow conditions. The first configuration is a ...
Mitigation of Ignition Overpressure in Launch Pads via Unsteady Adjoint-Based Optimization Danışan, Ercan Umut; Eyi, Sinan (2026-01-01) The solid rocket boosters (SRBs) of space launch vehicles generate powerful Ignition Overpressure (IOP) waves during the early stages of lift-off. These IOP waves propagate through launch environment and are reflected back...
COMBUSTION CHEMISTRY ACCELERATION USING NEURAL NETWORKS Göçer, Furkan; Karaca, Mehmet; Sivaslıgil, Mustafa (2026-01-01) Combustion simulations with detailed chemical kinetics are computationally expensive because chemical substeps dominate the computational time. To address this challenge, we develop a neural network model for hydrogen/air ...
Investigation of Propeller Performance Using QBlade: A Benchmark Study Eşdur, Merve; Kurtuluş, Dilek Funda (2026-01-01) This study investigates the aerodynamic performance of fixed-pitch propellers using QBlade, an open-source simulation tool based on Blade Element Momentum (BEM) theory. Four commercial APC propellers—6 × 4, 6 × 5, 8 × 4, a...
Numerical Analysis of Pressure Wave Propagation at Rocket Launch Pads Using Open-Source CFD Solvers Gündem, Doğukan; Iriolya, Tohid Ghorbani; Danışan, Ercan Umut; Ç Etin, Esra Buse; Atılkan, Yavuz; Eyi, Sinan (2026-01-01) Ignition overpressure (IOP) waves are generated during ignition of the rocket. IOP is a transient phenomenon that occurs as a sudden burst of exhaust gases during lift-off. This wave has a high pressure magnitude and a rel...
Numerical Investigation of Water Injection Effects on Jet Centerline Temperature and Ignition Overpressure by Using OpenFOAM Irirolya, Tohid Ghorbani; Eyi, Sinan; Tsutsumi, Seiji (2026-01-01) Analyzing and correctly designing of the launch environment is necessary for haveing a safe and successful launch. During launch, two kinds of pressure waves appear: (1) ignition overpressure (IOP) waves and (2) acoustic w...
Aerodynamic Evaluation of Airfoils and Wing Geometries for Unmanned Air Vehicles Applications Goli, Srikanth; Kurtuluş, Dilek Funda; Imran, Imil Hamda; Memon, Azhar M.; Kouser, Taiba; Alhems, Luai M. (2026-01-01) The design of fixed-wing vertical take-off and landing (FW-VTOL) unmanned air vehicles (UAVs) requires aerodynamic evaluation of both airfoils and wing geometries to balance lift, efficiency, and stability under varying fl...
Numerical Analysis of a Flame Deflector Using Reactive an Non-Reactive Flow Models Irirolya, Tohid Ghorbani; Eyi, Sinan; Tsutsumi, Seiji (2026-01-01) During the ignition of solid and liquid rocket motors, ignition overpressure (IOP) wave is generated. The IOP is caused by the rapid expansion of exhaust gases, which compress the surrounding air and behaves like blast wav...
Aerodynamic Analysis of Wind Turbine Airfoils with a Nested Krylov Subspace Solver Implementation in SU2 Akcengiz, Ezgi Orbay; Sezer Uzol, Nilay (2026-01-01) Accurate aerodynamic characterization of wind turbine airfoils is important for optimizing rotor performance, particularly at high Reynolds numbers where phenomena such as stall and transition significantly affect lift and...
Numerical Investigation of Gaps and Overlaps in Variable Stiffness Composites Using Alternative Defect Modeling Approaches Demirer, Halime Gül; Kayran, Altan (2026-01-01) This study examines the structural response of variable stiffness (VS) composite laminates manufactured by Automated Fiber Placement (AFP), focusing on the effects of gaps and overlaps on buckling and post-buckling damage ...
Numerical Study of Combustion Instabilities in a Single Injector Combustor Öztürkmen, Musa Onur; Özyörük, Yusuf (2026-01-01) The interactions between the unsteady heat release rate and pressure fluctuations in a combustion chamber may lead to thermoacoustic instabilities depending on the phase relationship between the two. In many instances, the...

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