After completing high school in Istanbul, I enrolled for the Aeronautical Engineering degree at Istanbul Technical University (ITU) in 2002. I graduated with a bachelor's degree (B.Sc.) in aeronautical engineering in 2007. By the middle of 2009, I completed my master's degree (M.Sc.) in the same department. During my graduate education, I worked as a Research Engineer in the heat transfer engineering field at Arçelik R&D Center between the years 2007-2009. In 2010, in the same academic institution, I started my (Ph.D.) thesis entitled "CFD Analysis of Helicopter Rotor-Fuselage Flow Interaction in Hovering and Forward Flight Conditions". In 2016, I satisfactorily fulfilled all the requirements of the Aeronautics and Astronautics Engineering Graduate Program and am awarded the degree of Doctor of Philosophy.
I should mention that my family have been very supportive in my decision to receive a higher education. I would like to convey my heartfelt gratitude here;
Today, I receive this accomplishment because you told me to never give up. I couldn't have done it without you. I am grateful and feel blessed to have you in my life. I love each and every one of you.
During my Ph.D. studies, I also worked at AES-AERO Engineering and Consultancy company between 2011-2017 as a Senior Design and Analysis Engineer. I worked on various projects to solve many engineering problems related to air, land and sea vehicles. My primary research interests are focused around Computational Fluid Dynamics and its applications, Fluid Mechanics, Aerodynamics and Heat Transfer.
M. Berkay Açıkgöz
As far as my character is concerned, I think that I am totally kind-hearted, conscientious, honest, neat, responsive and reliable. I am a confident, highly personable, caring, helpful, empathetic, open-minded, flexible, dynamic, vivacious and enthusiastic person, who has a permanent willingness to learn and explore new things, since variety is the spice of life. I am quite hardworking and extremely well organized with excellent time management, communication and interpersonal skills. I am always passionate about bringing high quality solutions by ensuring rigorous attention to detail. My tenacious commitment helps me to deliver the job within the desired time lines. I can say more about me, but actions do truly speak louder than words. So, to make a long story short, I am absolutely confident that I have the necessary enthusiasm, determination and perseverance, motivation, skills and talent that will allow me to succeed in any kind of challenging situation, far beyond expectations.
I would like to express some of my core technical skills. These include, but are not limited to, the following:
Possess a consciousness of responsibility
A strong analytical and problem-solving skill
Excellency in the design of highly complicated three-dimensional geometries, using CATIA Generative Shape Design Module or BLENDER
Comprehensive knowledge in using different types of meshes such as structured, block-structured, unstructured, or hybrid meshes consisting of tetrahedral, pyramids, prisms and hexahedral elements
Exceptionally experienced in the generation of high quality meshes with either using ANSA, or GAMBIT
Modelling and simulation capabilities for a wide range of tough fluid flow problems
A very good level of understanding and physical interpretation of highly complex flow phenomena
Highly proficient in software development, particularly using MATLAB
Possess excellent verbal and written communication skills
Able to present effectively and confidently
Able to communicate clearly and concisely only with well-educated people from a very upper class environment
Well organized with the ability to multi task
Able to cope under pressure and work to tight deadlines
Able to work quickly and accurately
Always seeks for perfection and is keen on exerting the optimum effort to achieve the target efficiently. Searching the ways of a change from impossible to possible has always been a pleasure.
Pays attention to detail in order to enlighten the source of the problem. Most of the time, the answer is in the details.
Possess always a “Can Do” attitude and is passionate about performance excellence and continuous improvement.
With a commitment to excellence and sustainability in my profession, I am always seeking ways to improve and consolidate my existing skills even further. Willingness and eagerness to learn new skills is an inevitable requirement for today's competitive world, and thus should be maintained in a continuous manner.
Education
Languages
Interest and Activities
Experience
Computer Skills
Research Interest
Publications
Education
If you are not willing to learn, no one can help you.
If you are determined to learn, no one can stop you.
Istanbul Technical University
Graduate School of Science Engineering and Technology
Department of Aeronautics and Astronautics Engineering
Aeronautics and Astronautics Engineering Programme
02.2010-08.2016, GPA: 3.69 / 4
Thesis Title:
CFD analysis of helicopter rotor-fuselage flow interaction in hovering and forward flight conditions.
Brief Synopsis of Research:
Unsteady compressible flow analyses are carried out to investigate the challenging helicopter rotor/fuselage flow interaction problem in hover and forward flight conditions. The blade dynamic motions excited by the air loads, which vary periodically in the azimuth direction and also differ based on the advance ratio, have been prescribed by a UDF code embedded into the solver, since these motions cannot be directly represented with the existing commercial code capabilities. Commonly seen dynamic mesh problems are alleviated by appropriately formed dynamic grids using the spring based smoothing and re-meshing methods. The present single grid methodology has given similar successful results with much lower number of grid elements, thus resulting in much shorter computing times, using modest computational power. The present study introduces an affordable methodology to handle the complex interactional rotor fuselage aerodynamics problem. To the best of the authors’ knowledge, this methodology is presented for the first time. Its outstanding properties are
A commercially available CFD solver FLUENT, which is accessible by everyone. Most of the complex interactional rotor aerodynamics analysis is accomplished by specialized institutional codes such as those of National Aeronautics and Space Administration (NASA), Japan Aerospace Exploration Agency (JAXA), or Europe;
The blade pitch and flap rigid body motions are introduced into FLUENT using the UDF feature. The UDF is written to invoke azimuthal variations of the flap and pitch motions of the blades as a first-order Fourier series;
Single unstructured meshes within predefined grid blocks. Almost all existing literature uses sliding mesh or overset mesh techniques to account for the rotor blade motion in forward flight;
A nonoverset dynamic mesh motion method that applies volume mesh deformation and cell re-meshing within a priori organized block mesh structure to accommodate the rigid blade motion. Moving deforming grids are only needed within the deformable grid block;
RANS based unsteady viscous compressible flow analysis. Most of the published works in open literature consider Euler and/or wake prediction techniques; and
An accurate engineering solution approach: Relatively coarse, easy-to-prepare grids lead to acceptable computation times with modest computational power.
Istanbul Technical University
Graduate School of Science Engineering and Technology
Department of Aeronautics and Astronautics Engineering
Aeronautics and Astronautics Engineering Programme
08.2007-07.2009, GPA: 3.00 / 4
Thesis Title:
Investigation of airflow and temperature distribution in a freezer cabinet.
Brief Synopsis of Research:
In the present study, a domestic type no-frost freezer named B-930 was chosen as a baseline geometry to analyze the effects of design changes both numerically and experimentally. In no-frost cooling systems, the moisture present in the air is driven away by a cyclical filtering process, then blown into the cabinets as dry and cold. This feature impedes the formation of ice and thus eliminates the need of manually defrosting the freezer, which can be given as the greatest advantage of no-frost systems over the conventional ones. Constant demand for energy efficient household appliances encouraged companies to produce innovative products and led engineers to carry out research into understanding the essential parts of thermal design. It is revealed that uniformity of temperature distribution in a loaded freezer cabinet is one of the most important factors affecting energy consumption of a refrigerator. The objective is to keep food fresh by providing more effective cooling along with lesser cost. The three-dimensional unsteady CFD analyses are carried out for an appropriate freezer loading plan to model forced and natural convections where two of the heat transfer classifications occur sequentially due to the cyclical on and off periods of the compressor. The initial and boundary conditions are provided from the experiments, which have been carried out using the facilities of Heat Transfer and Fluid Dynamics Group at Arcelik, INC. After the validation of the numerical approach, DoE based CFD analyses are performed to find the desired optimum condition for the freezer. Then, a prototype of the proposed design is produced and tested with both PIV and temperature controlled room measurements. The CFD analysis has shown reasonable agreement with experimental data obtained for the proposed design.
The aim of the project is to further increase the benefits of the system, which has already been quite successful in terms of energy efficiency. The project has been approved for support as part of the TÜBÝTAK University-Industry Cooperation Support Program. Some of the remarkable outputs and key issues of the study are highlighted below;
A detailed study on the parameters affecting the cooling mechanism can potentially bring further improvements to the performance of a no frost system, while staying in the feasible region in terms of producibility.
The position of the air supply holes, the distribution of flow rates at each air supply hole, total flow rate, the direction and temperature of blown air, the volume of the freezer compartment and insulation thickness on walls of compartment were considered as the parameters affecting the air and temperature distribution inside the freezer cabinet.
In order to find the possible best solutions, these parameters and their effects on the cooling process were examined comprehensively through a total of 220 different analyses proposed by the DoE study package.
Not only are the outputs of the DoE package important in achieving the optimum design, but also for establishing a solution database that provides the results of many different operating conditions of a refrigerator having the pre-specified set of instructions or input parameters such as initial and boundary conditions.
Providing the optimum design requirements leaded to a change in the air duct system. Therefore, a CFD based optimization study has been performed to find the duct shape that is capable of supplying the necessary distribution of flow rates at each air supply hole.
A Visual Basic userform has been created to make it easier for users/designers to access the processed results of solution database. For instance, the required amount of volumetric flow rate information can be attained when different freezer volumes are inquired as an input. Many other queries are available as well. If the user wants the query more customized so then can input more variables (up to total number of analyzed parameters).
Istanbul Technical University
Faculty of Aeronautics and Astronautics
Aeronautical Engineering
09.2002-08.2007, GPA: 2.75 / 4
Thesis Title:
FEA analysis of a canard pusher trainer's wing.
Brief Synopsis of Research:
The preliminary design of a canard pusher trainer has been made. The aircraft designed consists of a single rear-mounted engine and a tandem (two-seat) arrangement. The primary purpose of this study is to analyze the features of the designed wing through flow and structural static analysis. Moreover, the causes of the loads resulting from different operating conditions have been examined and the V-n diagram has been drawn for the designed aircraft. The level cruising flight and symmetric maneuvering conditions were chosen to be investigated. Three dimensional CFD analyses have been carried out to obtain the airloads produced during these aforementioned flight conditions. Then, structural static analyses of the wing have been performed using ABAQUS software for the two different loading scenarios in order to determine whether the wing safely carries the loads it is exposed to.
Languages
"One language sets you in a corridor for life. Two languages open every door along the way." - Frank Smith
Turkish - native
English - fluent (Speaking, Listening, Reading, Writing)
Interest and Activities
My hobbies are as follows:
I have a great interest in technical innovations and vocational knowledge. Being up to date is not only about knowing the latest trends, it is also about improving the analytical skills and strategic thinking abilities.
Sports: a healthy mind in a healthy body! If one wants to be healthy and robust, one should exercise regularly and try to live with healthy eating habits. Some of my favourite sport activities are biking, jogging, swimming, working out in the gym, football and dancing.
Music: music is food for the soul and the brain! Music is a magnificent tool for expressing our thoughts even when we cannot put them into words. Sometimes, it is another way of showing our emotions which cannot be kept silent yet cannot be expressed. Hence, it is a universal language understandable by anyone. I would rather not to discriminate between different music styles. That means a crowded list with wide range of tastes is at my service anytime. Briefly, I would love to listen to any kind of music unless it disturbs me!
Experience
Internship Experience
06.2007 - 07.2007 / TURKISH AIRLINES, INC.
08.2006 - 09.2006 / TURKISH AEROSPACE INDUSTRIES, INC.
08.2005 - 09.2005 / ISTANBUL TECHNICAL UNIVERSITY.
My core research interests lie in Computational Fluid Dynamics. Below you will find some of the primary topics.
Advanced numerical algorithms
Turbulent flows
High-performance computing
Flow instabilities
ALE methods
Complex industrial flows
Dynamic mesh adaptation
Flow around bluff bodies
Fluid-structure interaction
Heat transfer
Boundary layer flows
Multi-phase flows
Low Reynolds number aerodynamics
Aeroacoustics
Publications
Journal Papers
Açıkgöz, M.B., and Aslan A.R., (2016): Dynamic Mesh Analyses of Helicopter Rotor–Fuselage Flow Interaction in Forward Flight, Journal of Aerospace Engineering 29 (6), https://doi.org/10.1061/(ASCE)AS.1943-5525.0000641
A. Rüstem ASLAN, K. ANBARCI, M. Berkay AÇIKGÖZ, Omur ICKE, Ozgur ASLAN, Cenk DINC, (2016): Numerical Modelling and Prediction of the effect of Cooling Drag on the total Vehicle Drag, ACTA Aerodynamica Sinica, 34 (02): pp.232-238, http://html.rhhz.net/KQDLXXB/2016-02-232.htm
Anbarci, K., Açıkgöz, B., Aslan, R., Arslan, O., Icke, O., (2013): Development of an Aerodynamic Analysis Methodology for Tractor-Trailer Class Heavy Commercial Vehicles, SAE Int. J. Commer. Veh., 6 (2): pp.441-452, https://doi.org/10.4271/2013-01-2413
Açıkgöz, M.B., Akay, B., Miguel, A.F., Aydin, M., (2011): Airborne Pathogens Transport in an Aircraft Cabin, Defect and Diffusion Forum, 312-315, pp.865-870, Trans Tech Publications, Switzerland, ISSN: 1662-9507, https://doi.org/10.4028/www.scientific.net/DDF.312-315.865
Conference Papers and Presentations
Kerem Anbarci, H. Can Koman, Ibrahim Avsar, M. Berkay Açıkgöz, A. Rustem Aslan, (2016): Application of CFD Methods to Wind Noise Estimation of A-Pillar/Side Glass Region on Passenger Vehicles, in the 9th lnternational Conference on Computational Fluid Dynamics (ICCFD9), July 11-15, 2016, lstanbul, Turkey.
Icke, O., Dinc, C., Açıkgöz, M.B., Mestanli, S., Anbarci, K., Gungor, A.G., Aslan, A.R., (2015): DES Analyses and Drag Prediction of a Light Commercial Road Vehicle, 8th ICCHMT, May 25-28, Istanbul, Türkiye.
A. Rüstem ASLAN, Kerem ANBARCI, M. Berkay AÇIKGÖZ, Omur ICKE, Ozgur ASLAN, Cenk DINC, (2014): Numerical Modelling and Prediction of the effect of Cooling Drag on the total Vehicle Drag, Eighth International Conference on Computational Fluid Dynamics (ICCFD8), July 14-18, Chengdu, China.
Açıkgöz, M.B., Anbarci, K., Aslan, A.R., (2014): Askı ve İleri Uçuş Şartlarında Helikopter Rotor-Gövde Akış Etkileşimi için HAD Analiz Yöntemi Geliştirilmesi, 3. Ulusal Havacılıkta İleri Teknolojiler Konferansı (HİTEK), 18-19 Haziran, Hava Harp Okulu, İstanbul, Türkiye. https://doi.org/10.13140/RG.2.1.4676.8484
Nikbay, M., Açıkgöz, M.B., Kerpicci, H., (2009): Investigation of Airflow and Temperature Distribution in the Freezer Cabinet of a Domestic No-Frost Refrigerator, Proceedings of the ASME 2009 Heat Transfer Summer Conference, HT2009, July 19-23, 2009, San Francisco, California, USA. https://doi.org/10.1115/HT2009-88121
PORTFOLIO
MY WORK
Here are some of my latest work. Click on the images to make them bigger
Well, I live in Istanbul. Istanbul is a unique, fabulous and fascinating city that involves many reasons to visit such as its rich history, archeology, art, culture, food and much more. For instance; the famously fragrant Spice Market and the Grand Bazaar as well as the Hagia Sophia Museum and the Sultanahmet Mosque are the well known historical artifacts of the city. Furthermore, the Topkapı, the Dolmabahçe and the Çırağan Palaces are absolutely mind blowing and out of this world.
Istanbul, TR
Phone: +90 5555535686
acikgozbe
itu.edu.tr
gmail.com
yahoo.com
hotmail.com
Swing by for a cup of , or leave me a note!
Wise men talk because they have something to say; fools, because they have to say something.
Plato
Love all, trust a few, do wrong to none.
William Shakespeare
Everything should be as simple as it can be, but not simpler.
Albert Einstein
Well done is better than well said.
Benjamin Franklin
The empty vessel makes the loudest sound.
William Shakespeare
It does not matter how slowly you go as long as you do not stop.
Confucius
Knowing is not enough; we must apply. Willing is not enough; we must do.
Johann Wolfgang von Goethe
If you want to be respected by others, the great thing is to respect yourself. Only by that, only by self-respect will you compel others to respect you.
Fyodor Dostoyevsky
No legacy is so rich as honesty.
William Shakespeare
Iron rusts from disuse; water loses its purity from stagnation... even so does inaction sap the vigor of the mind.
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