Abdullah Ulaş

E-mail

aulas@metu.edu.tr

Department

Department of Mechanical Engineering

Design Methodology for a Central Injection Type Supersonic Air Ejector and Diffuser System for Altitude Simulation aydoğdu, ataman; sümer, bülent; yazıcı, bora; Ulaş, Abdullah (2019-08-22) Altitude simulation is an important concept in tactical missile systems, especially in terms of aerothermal ground testing and high-speed air breathing engine free-jet testing. Those tests of the tactical missile systems a...
Investigation of the Effect of Geometrical Parameters of Pressure Swirl Atomizer on the Hollow Cone Spray tokgöz, tolga; sümer, bülent; Ulaş, Abdullah (2019-08-22)
Evaluation of an Augmented Spark Igniter’s Flame Length and Comparison of Numerical and Experimental Investigations Öz, Levent; Özer, Ali Can; Sümer, Bülent; Ulaş, Abdullah (2019-08-22)
Burning Rate Comparison of a Mathematical Model with Experimental Results for AP/HTPB Based Composite Propellants Özcan, Serhat; cürdaneli, sertaç; Ulaş, Abdullah (2018-07-11)
Design and Testing of a Green Bipropellant Thruster for Satellite Propulsion Yılmaz, Çağlar; Bayramoğlu, Murat; Göçmen, Mahmut; Ulaş, Abdullah (2017-07-12)
Ballistic Performance of BPN Igniter Compositions Containing Micron and Nano-Sized Boron Particles Koç, Suzan; Eroğul Kombe, Funda; Ulaş, Abdullah (2017-07-12)
Improved combustion model of boron particles for ducted rocket combustion chambers Kalpakli, Bora; Acar, Emir Bedig; Ulaş, Abdullah (Elsevier BV, 2017-5) A combustion model of boron particles for detailed Computational Fluid Dynamics (CFD) based simulations of ducted rocket combustion chambers is studied. It is aimed to construct a model for combustion of boron containing g...
Experimental Investigation of Effusion and Film Cooling for Gas Turbine Combustor İnanlı, Sinan; Yasa, Tolga; Ulaş, Abdullah (2016-07-12) Experimental study was conducted to understand the heat transfer characteristics of film or effusion cooled test plates that represent the gas turbine combustor liner. Two effusion cooling test plates having different hole...
A Test Bench for Gas Turbine Combustor Cooling Investigations İnanlı, Sinan; Yasa, Tolga; Ulaş, Abdullah (null; 2016-07-12) Design and installation of a test bench for combustion chamber cooling investigations of gas turbines are carried out. The test bench mainly consists of a radial fan, an electrical heater, an air tunnel, a test section, an...
Characterization of BPN Pyrotechnic Composition Containing Micro- and Nanometer-Sized Boron Particles Koc, Suzan; Ulaş, Abdullah; Yilmaz, Nil Ezgi (Wiley, 2015-10-01) The effect of micro- and nanometer-sized boron particles on boron-potassium nitrate (BPN) ignition composition was investigated in this paper. As a starting point, thermochemical calculations were made to determine the mos...

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