Özgür Uğraş Baran

E-mail

ubaran@metu.edu.tr

Department

Department of Mechanical Engineering

ORCID

0000-0002-8437-7862

Scopus Author ID

36741975400

Web of Science Researcher ID

ABA-4110-2020

A sensitivity study on the starting simulations of turbojet engines Gullu, E.; Aran, G.; Erk, M.; Baran, Özgür Uğraş (2024-09-19) Gas turbine engine starting models require a lot of calibration to represent reality with acceptable accuracy due to the lack of high-quality component rig data in the sub-idle region. A detailed sensitivity study is prese...
EXTENSION OF THE MULTALL OPEN SOURCE THROUGHFLOW CODE FOR THE IMPROVED OFF – DESIGN CALCULATIONS Bilgiç, Mustafa; Baran, Özgür Uğraş; Aksel, Mehmet Halûk (2024-01-01) Throughflow calculations play an important role in the design stages of a turbomachinery. After the one-dimensional mean line calculations have been completed, the throughflow solver used in the design mode to perform the ...
Assessment of Effect of Flux Scheme and Turbulence Model on Blade-to-blade Calculations Bilgiç, M.; Baran, Özgür Uğraş; Aksel, M.H. (2024-01-01) Today, due to advances in computing power, Reynolds Averaged Navier-Stokes (RANS) solvers are widely preferred for quasi-three-dimensional (Q3D) blade-to-blade analysis. This study investigates the performance of different...
Assessment and Extension of the WrayAgarwal Turbulence Model for Shock WaveBoundary Layer Interactions Akça, Semih Can; Dikbaş, Erdem; Baran, Özgür Uğraş (2024-01-01) In this study, the performance of the Wray-Agarwal one-equation turbulence model is evaluated using Shock Wave-Boundary Layer Interaction (SWBLI) test cases. Also, a recently tested formulation by Raje and Sinha aiming for...
Towards Accurate Vortex Separation Simulations with RANS Using Improved k-kL Turbulence Model Dikbaş, Erdem; Baran, Özgür Uğraş (2023-04-01) In this study, we present our improved RANS results of the missile aerodynamic flow computation involving leading edge vortex separation. We have used our in-house tailored version of the open source finite volume solver F...
Chapter 9 ‒ PREDICTIONS OF VORTEX INTERACTIONS FOR LK6E2 – PART II Schnepf, Christian; DeSpirito, James; Anderson, Michael; Dikbaş, Erdem; Loupy, Gaetan; Baran, Özgür Uğraş (NATO-AVT, 2023-01-01)
Extension Of The Multall Open Source Throughflow Code For The Improved Endwall Loss Simulation Bilgiç, Mustafa; Baran, Özgür Uğraş; Aksel, Mehmet Haluk (2023-01-01) Accurate loss modeling is critical for throughflow calculations to capture correct streamtube geometry and the accurate spanwise distribution of flow properties during quasi three-dimensional design of a turbomachinery bla...
Chapter 7- THE INFLUENCE OF MODELLING IN PREDICTIONS OF VORTEX INTERACTIONS Shaw, Scott; Anderson, Michael; Barakos, George; Baran, Özgür Uğraş; Boychev, Kiril; Dikbaş, Erdem; DeSpirito, James; Loupy, Gaetan; Schnepf, Christian; Tormalm, Magnus (NATO-AVT, 2023-01-01)
Assessment and comparison of the gamma and bc transition Models for external flows Karabay, Sami; Baran, Özgür Uğraş (2023-01-01) Modelling of transition from the laminar to turbulent flow became a hot topic due to recent developments in renewable energy, UAV technologies and similar aerospace applications. The transition from laminar flow to turbule...
IMPLEMENTATION, VERIFICATION AND ASSESSMENT OF VORTEX CAPTURING CAPABILITIES OF k-kL TURBULENCE MODEL Baran, Özgür Uğraş (2022-04-01) This study presents the first results of a new turbulence model implementation in our compressible finite volume CFD solver. The k - kL turbulence model is one of the newest two-equation models, and it is based on the idea...

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