Mehmet Karaca

E-mail

mkaraca@metu.edu.tr

Department

Department of Aerospace Engineering

ORCID

0000-0003-2821-9939

Scopus Author ID

55183460700

Web of Science Researcher ID

AAN-5252-2021

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...
Effect of flame characteristics on an isolated ethanol droplet evaporating through stagnation methane/air flames: An experimental and numerical study Kaya Eyice, Deniz; Karaca, Mehmet; Halter, Fabien; Gökalp, İskender; Chauveau, Christian (2024-07-01) A single ethanol droplet evaporation through laminar methane/air stagnation flame is investigated at lean, stoichiometric and rich conditions experimentally and numerically. For the droplets having initial diameters of 20-...
Numerical Investigation on the Inflow Mach Number Variations in a Strut Injected Cavity Based Scramjet Combustors Rajesh, A.C.; Jeyakumar, S.; Jayaraman, Kandasamy; Karaca, Mehmet (2024-01-01) The effect of enhancing the air inflow Mach number of a strut-injected cavity incorporated in a scramjet combustor is numerically studied. The computational investigations are performed using the commercial code AnsysFluen...
Performance evaluation of a scramjet engine utilizing varied cavity aft wall divergence with parallel injection in a reacting flow field Maheswaran, Nagarathinam; Jeyakumar, Suppandipillai; Jayaraman, Kandasamy; Karaca, Mehmet (2024-01-01) The effect of implications of the dual cavity with aft wall divergence in a parallel injection reacting flow has been numerically investigated. This research intends to emphasize the behaviour of the supersonic flow under ...
Influence of cavity and ramp layout on combustion performance in a strut-based scramjet combustor ATCI, METEHAN; Jeyakumar, Suppandipillai; Sharma, Prince; Karaca, Mehmet; Jayaraman, Kandasamy (2024-01-01) The computational analysis focuses on the flow performance of a wall-mounted cavity and ramp within DLR scramjet model operating in a reacting flow environment. The analysis encompasses a base setup aligned with DLR experi...
Designing restorative landscapes for students: A Kansei engineering approach enhanced by VR and EEG technologies Karaca, Elif; Çakar, Tuna; Karaca, Mehmet; Hüseyin Miraç Gül, Hasan (2024-01-01) This study explores the alignment of specific landscape features within school environments with the core elements of Attention Restoration Theory (ART) that includes Coherence, Fascination, Compatibility, and Being Away. ...
The implications of dual cavity location in a strut-mounted scramjet combustor Rajesh, A.C.; Jeyakumar, S.; Jayaraman, Kandasamy; Karaca, Mehmet; Athithan, A. Antony (2023-06-01) The effect of dual cavity locations with strut injection configuration in a supersonic flow under reacting conditions has been numerically evaluated. The simulation is performed by adopting a two- dimensional planar model ...
Steady and unsteady flow characteristics of dual cavity in strut injection scramjet combustor Rajesh, A.C.; Jeyakumar, S.; Jayaraman, Kandasamy; Karaca, Mehmet (2023-01-01) This study aims to understand the flow performance of a dual wall-mounted cavities in a strut-injector mounted scramjet combustor for steady-state and transient reacting conditions. Conventionally, two-dimensional Reynolds...
Hydrogen production using aluminum-water splitting: A combined experimental and theoretical approach Jayaraman, Kandasamy; Mutlu, Rasiha Nefise; Eroğlu, Esra; Karaca, Mehmet; Toffoli, Hande; Gökalp, İskender (2023-01-01) Hydrogen generation from aluminum hydrolysis with NaOH as an activator is investigated experimentally. A theoretical model is developed using the Density Functional Theory (DFT) and a one-dimensional transport model formal...
Application of a Robust Multigrid Technique for the Parallel Solution of Initial-Boundary Value Problems Martynenko, S.I.; Gökalp, İskender; Bakhtin, V.A.; Karaca, Mehmet; Toktaliev, P.D.; Semenev, P.A. (2022-12-01) This article is devoted to the construction of a parallel multigrid algorithm for the numerical solution of (non)linear initial-boundary value problems (implicit schemes) based on a robust multigrid technique (RMT). A dist...

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