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Browsing Faculty of Aeronautics and Astronautics / Havacılık ve Uzay Bilimleri Fakültesi by Issue Date

Now showing items 21-30 of 30

Approximate Factorization Method Using Alternating Cell Direction Implicit Method Comparison of Convergence Characteristics Using Basic Model Equations

Cete, Ali Ruhsen (KUWAIT JOURNAL OF SCIENCE / ACADEMIC PUBLICATION COUNCIL, 2021-07)

In this paper, a fast implicit iteration scheme called the alternating cell directions implicit (ACDI) method is combined with the approximate factorization scheme. The use of fast implicit iteration methods with unstructured ...
Passive Flow Control around NACA 0018 Airfoil Using Riblet at Low Reynolds Number

Guler, Emre; Durhasan, Tahir; Karasu, Ilyas; Akbiyik, Hurrem (Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi (FBED) = Journal of The Institute of Science and Technology (JIST) / Iğdır Üniversitesi, 2021-09)

In this study, aerodynamic capabilities of NACA 0018 airfoil is numerically investigated by installing riblet on the suction side of airfoil. Numerical results were obtained by ANSYS Fluent using k-kl-kw transition model ...
Image processing based autonomous landing zone detection for a multi-rotor drone in emergency situations

Turan, Veysel; Avsar, Ercan; Asadihendoustani, Davood; Avsar Aydin, Emine (Turkish Journal of Engineering / Murat YAKAR, 2021-10)

Flight safety and reliability improvement is an important research issue in aerial applications. Multi-rotor drones are vulnerable to motor failures leading to potentially unsafe operations or collisions. Therefore, ...
Classification of Punctures on Complete Flat Surfaces

Saglam, Ismail (International Electronic Journal of Geometry (IEJG) / Kazım İLARSLAN, 2021-10)

We investigate the behavior of a complete flat metric on a surface near a puncture. We call a puncture on a flat surface regular if it has a neighborhood which is isometric to that of a point at infinity of a cone. We prove ...
3D-Printed Graphene-Based Bow-Tie Microstrip Antenna Design and Analysis for Ultra-Wideband Applications

Avsar Aydin, Emine (POLYMERS / MDPI, 2021-11)

In this study, the effects of graphene and design differences on bow-tie microstrip antenna performance and bandwidth improvement were investigated both with simulation and experiments. In addition, the conductivity of ...
The Turbulence Intensity Effect on the Flow Characteristics and Aerodynamics of a Circular Cylinder

Karasu, Ilyas; Tumse, Sergen (Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi = Cukurova University Journal of the Faculty of Engineering / Çukurova Üniversitesi, 2021-12)

In this investigation, a numerical study about the turbulence intensity effect on the time-dependent flow structure around a circular cylinder employing k-ω based Detached Eddy Simulation (DES) turbulence model was performed ...
A novel 3D printed curved monopole microstrip antenna design for biomedical applications

Bicer, Mustafa Berkan; Aydin, Emine Avsar (PHYSICAL AND ENGINEERING SCIENCES IN MEDICINE / SPRINGER, 2021-12)

This paper proposes a novel and compact monopole microstrip antenna design with a three-dimensional (3D) printed curved substrate for biomedical applications. A curved substrate was formed by inserting a semi-cylinder ...
Performance-based emergency landing trajectory planning applying meta-heuristic and Dubins paths

Haghighi, Hassan; Delahaye, Daniel; Asadi, Davood (APPLIED SOFT COMPUTING / ELSEVIER, 2022-03)

Emergency Landing is a complex problem of optimal path planning of an impaired airplane in presence of obstacles, while the airplane performance characteristics have degraded. Some in-flight failures can affect the airplane ...
Fault tolerant control of a quadrotor based on incremental nonlinear dynamic inversion

Ahmadi Dastgerdi, Karim; Asadihendoustani, Davood; Nabavi Chashmi, Seyed Yaser (International Journal of Aeronautics and Astronautics (IJAA) / Selçuk Üniversitesi, 2022-04)

The multirotor unmanned aerial vehicles (UAVs) have rapidly attracted interest of the researchers since they play a unique role in a variety of areas including the military, agriculture, rescue, and mining. Actuator fault ...
From Euclidean triangles to the hyperbolic plane

Saglam, Ismail (EXPOSITIONES MATHEMATICAE / ELSEVIER GMBH, 2022-06)

We introduce a model of the hyperbolic plane which arises from Thurston's ideas on best Lipschitz maps between surfaces. More precisely, we apply Thurston's theory to the space of Euclidean triangles. We prove that the ...

Now showing items 21-30 of 30

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