Department of Aerospace Engineering

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Recent Submissions

Post heat treatment optimization of cold spray additive manufactured Inconel 718 Karakas, Aptullah; Ataee, Arash; Rathi, Amit; Fenercioglu, Tevfik Ozan; Erdoğan, Can; Yalçınkaya, Tuncay (2025-12-01) The cold spray technique has recently emerged as an additive manufacturing method for producing free-standing parts, in addition to its use in repair and coating applications. Manufacturing relatively hard alloys such as I...
Investigation of Variable Taper Angle Design in Highly Tapered Laminates for Delaying Delamination Ergin, Fırat; Kayran, Altan (2025-03-01) Specific requirements in aircraft components may necessitate the use of high taper angles in the thickness transition region of composite laminates, leading to early delamination initiation at the thin side of the taper re...
A Data-Driven Approach for the Prediction of Reynolds Number Effects on Wind Turbine Airfoil Aerodynamic Polars Özgören, Ahmet Can; Uzol, Oğuz (2025-03-01) This study presents a data-driven approach to extrapolate and predict Reynolds number effects on wind turbine airfoil polars. For this purpose, a database is created using experimentally obtained aerodynamic coefficients f...
Comparative Aerodynamic Analysis and Parallel Performance of 2D CFD Simulations of a VAWT Using Sliding Mesh Interface Method Önel, Hüseyin Can; Adam, Ali Ata; Sezer Uzol, Nilay (2025-02-01) With rapid advancements in computer hardware and numerical modeling methods, Computational Fluid Dynamics (CFD) has gained prominence in simulating complex flows. As parallel computation becomes an industry standard, the c...
Artificial neural network for the evaluation of electric propulsion system in unmanned aerial vehicles Goli, Srikanth; Kurtuluş, Dilek Funda; Waqar, Muhammad; Imran, Imil Hamda; Alhems, Luai M.; Kouser, Taiba; Memon, Azhar M. (2025-01-01) In the domain of unmanned aerial vehicles (UAVs), evaluating electric propulsion systems is pivotal for enhancing performance and efficiency. This study employs a scaled conjugate gradient (SCG) algorithm to train an artif...
Lattice Cell Assisted Topology Optimization of an Extendable Wing for Munition Aksoy, Buğra; Kayran, Altan (2025-01-01) This study focuses on developing a structural concept for an extendable wing for munitions using a lattice-cell-assisted approach. The process involves topology optimization followed by size optimization of the strut-based...
Surrogate model based optimization of variable stiffness composite wingbox for improved buckling load with manufacturing and failure constraints Inci, Hasan; Kayran, Altan (2025-01-01) The buckling load of a wingbox is maximized by applying different automatic fiber placement (AFP) strategies on the skins of the wing having NACA 4412 airfoil profile. Specifically, the effect of single, dual and three reg...
Modeling of the Stress Path-Dependent Strain Ratcheting Behaviour of 304L Stainless Steel Through Crystal Plasticity Frameworks Açar, Sadık Sefa; Yalçınkaya, Tuncay (2025-01-01) This study investigates the strain ratcheting behavior of 304L stainless steel under complex stress-controlled cyclic loading conditions employing crystal plasticity models in the DAMASK framework. Strain ratcheting, a phe...
Numerical Investigation of Ply Termination Techniques for Delamination Resistance Ergin, Fırat; Kayran, Altan (2025-01-01) Necessary ply termination locations for improved weight and stiffness distribution in laminated composite structures can cause early initiation of delamination due to the elevated interlaminar stresses in wind turbine blad...
Aerodynamic Investigation of Hover using Vortex Ring Wake Model and Free Vortex Wake Model Öztürk, İldeniz; Sezer Uzol, Nilay (2025-01-01) Modeling rotor inflow and wake dynamics is fundamental to understanding and improving rotorcraft performance. Especially, hover modeling plays an important role in aircraft design, aerodynamic assessments, and the developm...
Application of Artificial Neural Network based Surrogate Models for Parameterized Flow to a Sweptback Wing: An Outlook for Wind Turbine Blades Yilmaz, Ozge Ozkaya; Kayran, Altan (2025-01-01) The dynamics of blunt-body reentry vehicles are crucial, as they must withstand the intense aerodynamic forces and extreme heat generated during atmospheric reentry. Despite thermal protection benefits, the blunt body shap...
Design optimization of a fluidic thrust vectoring system based on coanda effect using meta-models Kara, Emre; Kurtuluş, Dilek Funda (2024-12-30) In this study, parametric optimization is employed to identify optimal output parameters for physical components of HOMER nozzle type fluidic thrust vectoring (FTV) system. Optimization study is conducted on seven output p...
Relative position estimation using modulated magnetic field for close proximity formation flight Shibata, Takuma; Söken, Halil Ersin; Sakai, Shin-ichiro (2024-12-01) This paper presents a method to estimate relative position vectors between spacecraft equipped with magnetic coils and magnetic field sensors for close proximity operation. Filters can segregate a magnetic field with a par...
Design Optimization of a Novel Flush Boundary Layer Diverter Kucuk, Umut Can; Tuncer, İsmail Hakkı (2024-12-01) A novel boundary layer diverter is designed and optimized for increasing the performance of a typical semi-submerged inlet ingesting large amounts of boundary layer flow. A conceptual diverter configuration based on the pr...
The oscillating vortex generator: a boundary layer propulsion and flow control device Anılır, Berkan; Kurtuluş, Dilek Funda; Platzer, M. F. (2024-11-29) This paper aims to explore the feasibility of providing boundary layer propulsion and flow control by means of embedded aerofoils that are oscillating in the pure plunge mode. To this end, Navier-Stokes calculations of the...
Numerical and experimental investigations of swirl-stabilized partially premixed flames using natural gas-hydrogen-air mixtures Böncü, Emre; Güleryüz, Dilay; Karaca, Mehmet; Allouis, Christophe Gerard; Gökalp, İskender (2024-10-01) This study uses experimental and numerical techniques to examine natural gas and hydrogen mixtures as fuel with a partially premixed swirl-stabilized burner. Variations in the fuel mixture composition were investigated thr...
Pala Elemanı Teorisi Tabanlı Helikopter Rotor Simülasyonları için Aerodinamik Düzeltme Modelleri Dağalp, Alper; Bayrak, Yusuf; Sezer Uzol, Nilay (2024-09-18)
Kanat Konfigürasyonlarının Aeroelastik Tepkisinin Nümerik Metotlar ile İncelenmesi Fırat, Ali Osman; Sezer Uzol, Nilay (2024-09-18)
Rotor Pala Uç Şeklinin Aerodinamik Performansa Etkisinin Helikopter Rotor Simülasyon Modeli ile İncelenmesi Arslan, Ayşe; Yaparlar, Teoman; Çetinel, Deniz Can; Dağalp, Alper; Bayrak, Yusuf; Sezer Uzol, Nilay; Okçu, Ilgaz Doğa (2024-09-18)
Sesüstü Harici Sıkıştırma Rampalı Hava Alığı Modelinin Farklı Türbülans Modelleri ile Sayısal İncelenmesi Özcan, Muhammed Enes; Sezer Uzol, Nilay (2024-09-18)

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