Department of Aerospace Engineering, Conference / Seminar

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Tuncer, İsmail Hakkı (70)
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Computational fluid dynamics (17)
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Recent Submissions

Adjoint Based Multi-Objective Optimization of Submerged Subsonic Intake
Ahmed, Ali; Tuncer, İsmail Hakkı (2021-01-12)
© 2021 IEEE.The present study describes the adjoint based shape optimization of sub-merged trapezoidal intake. Initially direct results on the baseline geometries are compared with published results which are found to be i...
Energy-based adaptive flight controller for improved coordinated longitudinal control
Yayla, Metehan; Kutay, Ali Türker; Kutlu, Aykut (2021-01-01)
© 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.In this study, we propose an adaptive longitudinal flight controller in the sequential loop closure framework using the energy princ...
Linear model identification for rotorcraft using adaptive learning
Gursoy, Gonenc; Aslandogan, Ongun Hazar; Yavrucuk, İlkay (2021-01-01)
Copyright © 2021 by the Vertical Flight Society. All rights reserved.Convergence to a unique identification result with an optimum model structure is a goal in rotorcraft system identification. Whether using time domain or...
Simulation model fidelity enhancement using corrective force and moment increments: Review of activity performed in NATO-AVT Panel 296
Taghizad, Armin; White, Mark; Cameron, Neil; Padfield, Gareth; Yavrucuk, İlkay; Myrand-Lapierre, Vincent; Nadeau-Beaulieu, Michel; Richard, Sylvain; Tischler, Mark (2021-01-01)
Copyright © 2021 by the Vertical Flight Society. All rights reserved.The Applied Vehicle Technology (AVT) Panel of the NATO Science and Technology Organization has recently engaged a Research Task Group on the topic of rot...
Strength analysis of a 5-m composite wind turbine blade under static and fatigue loading conditions
Muyan, C.; Çöker, Demirkan (2020-10-23)
© Published under licence by IOP Publishing Ltd.This study focuses on the static and fatigue strength analysis of the existing 5-m RUZGEM composite wind turbine blade with and without defect in the form of debonding. Puck ...
Arafazlı, Heterojen Mikroyapının Çok Seviyeli Homojenleştirme Yaklaşımı ile Modellenmesi
Güzel, Dilek; Gürses, Ercan (null; 2020-09-09)
An adaptive flight controller design for a tilt-prop fixed wing uav for all flight modes
Yayla, Metehan; Kutay, Ali Türker; Senipek, Murat; Gungor, Osman (2020-01-01)
© 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.In this study, we propose an autonomous flight control strategy (which is valid for all flight modes including vertical flight, hove...
Computational modelling and analysis of porous bleed holes at supersonic speeds
Akar, Gökhan; Eyi, Sinan (2020-01-01)
© 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.Shock Wave / Boundary Layer Interaction is an important issue that should be taken into account when studying inlet design. Bleed ho...
Active Hybrid Fault Tolerant Flight Control of an UAV under Control Surface Damage
Ergocmen, Burak; Yavrucuk, İlkay (2020-01-01)
Control surface or actuator faults or failures in any flight lead to system-induced loss of control in-flight (LOC-I) and the result can be fatal. In this paper, to prevent these accidents, an active fault-tolerant flight ...
MS Bladed Rüzgar Türbin Simülasyon Modeli ve Bazı Örnek Uygulamalar
Şahin, Mustafa (2019-12-14)
Bu çalışma, pal elemanı momentum (BEM) teorisi üzerine kurulan MS (Mustafa SAHİN) Bladed Rüzgar Türbini Simülasyon Modelinin tanıtılması, özellikleri ve model ile yapılabilen bazı örnek uygulamaları göste...
COMPARATIVE STRUCTURAL OPTIMIZATION STUDY OF COMPOSITE AND ALUMINUM HORIZONTAL TAIL PLANE OF A HELICOPTER
Arpacıoğlu, Bertan; Kayran, Altan (2019-11-11)
This work presents structural optimization studies of aluminum and composite material horizontal tail plane of a helicopter by using MSC. NASTRAN SOL200 optimization capabilities. Structural design process starts from conc...
AEROELASTIC MODELING AND ANALYSIS OF HIGH ASPECT RATIO WINGS WITH DIFFERENT FIDELITY STRUCTURAL MODELS
Çiçek, Gökçen; Kayran, Altan (2019-11-11)
This paper is concerned with the aeroelastic modeling and analysis of high aspect ratio wings with large torsional deflections with different fidelity structural models. The approach for structural modeling presented here...
Numerical and Experimental Investigation of Rotor Aerodynamics In Ground Effect with Inclined Planes
Şahbaz, Mehmet; Sezer Uzol, Nilay; Kurtuluş, Dilek Funda (null; 2019-11-02)
In this work, the ground effect phenomena for a rotary wing is investigated both numerically and experimentally. For this purpose, a test setup with scaled model helicopter rotor is established. The experimental setup give...
Main Rotor - Tail Rotor Interactional Noise
Atalay, Mehmet Melih; Şenipek, Murat; Yücekayalı, Arda; Özyörük, Yusuf (2019-10-30)
In this paper, effects of main rotor – tail rotor interactions on noise characteristics are investigated for a typical 10 ton class helicopter. Evaluations are performed at hover and quartering flight conditions with top-f...
SHIP AIRWAKE INVESTIGATIONS ON SFS2 WITH A HOVERING HELICOPTER ROTOR BY COMPUTATIONAL FLUID DYNAMICS SIMULATIONS
Orbay Akcengiz, Ezgi; Sezer Uzol, Nilay (2019-10-30)
In this study, Computational Fluid Dynamics simulations of ship airwake for a simple ship geometry are performed for the horizontal and inclined deck configurations and also with and without the helicopter rotor hovering o...
Flow field characteristics of translating and revolving flexible wings
Yazdanpanah, Mahdi; Hazaveh, Hooman Amiri; Perçin, Mustafa; Van De Meerendonk, Remco; Van Oudheusden, Bas W. (null; 2019-10-20)
This study explores the effects of rotational mechanisms on the characteristics of the leading edge vortex (LEV) by comparing translating and revolving flexible wings that are started from rest. Tomographic particle image...
Rüzgar Türbini Kanat Yunuslama Açısı Kontrolcüsü Tasarımı Ve Performans Analizi
Şahin, Mustafa; Yavrucuk, İlkay (2019-10-05)
Bu çalışma, MS (Mustafa ŞAHİN) Bladed Rüzgar Türbin Simülasyon Modeli kullanılarak, NREL 5 MW’lık rüzgar türbini için lineer bir kanat yunuslama açısı kontrolcüsünün tasarımı, türbin kontrollerinde kullanılan bir kazanç çi...
RÜZGAR TÜRBİNİ ROTORLARI İÇİN KALIN KANAT PROFİLLERİNİN HAD SİMÜLASYONLARI
Orbay Akcengiz, Ezgi; Sezer Uzol, Nilay (null; 2019-10-03)
Bu çalışmada rüzgar türbini rotorlarında kullanılan çeşitli kalın kanat profillerinin üzerindeki akış simülasyonları daimi ve zamana bağlı Hesaplamalı Akışkanlar Dinamiği (HAD) kullanılarak yapılmıştır. Kalın kanat profill...
Yatay eksenli rüzgâr türbinleri için gürbüz tasarım yöntemi
Altuğ Yalçın, Ayşe Hazal; Yavrucuk, İlkay; Uzol, Oğuz (null; 2019-10-03)
Gürbüz tasarım, kontrol edemediğimiz değişkenlerden çok etkilenmeyen tasarımdır ve rüzgarın stokastik yapısı dolayısıyla rüzgar türbinleri için önemlidir. Bu makalede enerji maliyetini düşürebilmek için yatay eksenli rüzga...
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...
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