Dr. Abdullah Ulaş,
Ph.D.
Professor
Research Interests:
Combustion,
Rocket Propulsion, Thermodynamics, Heat Transfer, Solid Propellant Development
and Ballistic Testing, Spectroscopy
· Ph. D. in Mechanical Engineering, The Pennsylvania State
University, USA, 2000
· M. S. in Mechanical Engineering, The Pennsylvania State
University, USA, 1996
· B. S. in Mechanical Engineering, Middle East Technical
University, 1994
WORK EXPERIENCE:
·
June 2012 – Present:
Professor, Department of Mechanical Engineering, Middle East Technical
University, Ankara-Turkey
·
September 2017 – September 2018:
Sabbatical Leave, ROKETSAN, Ankara – Turkey
·
April 2017 – April 2019:
TÜBİTAK-TEYDEP USETEG Advisory Committee Membership
·
July 2016 – April 2017:
TÜBİTAK-TEYDEP MAKİTEG Executive Committee Membership
·
November 2015 – December 2016:
Consultant, TÜBİTAK-SAGE, Ankara - Turkey
·
January 2013 – August 2015:
Consultant, ROKETSAN, Ankara - Turkey
·
February 2012 - August 2012:
Consultant, TÜBİTAK-SAGE, Ankara - Turkey
·
June 2011 – November 2011:
Consultant, TÜBİTAK-SAGE, Ankara - Turkey
·
December 2009 – December 2010:
Consultant, ROKETSAN, Ankara - Turkey
·
January 2007-June 2012:
Associate Professor, Department of Mechanical Engineering, Middle East Technical
University, Ankara-Turkey
·
April 2002-January 2007:
Assistant Professor, Department of Mechanical Engineering, Middle East
Technical University, Ankara-Turkey
·
January 2003-May 2004:
Consultant, TÜBİTAK-SAGE, Ankara-Turkey
·
September 2001-April 2002:
Instructor Dr., Department of Mechanical
Engineering, Middle East Technical University, Ankara-Turkey
·
May 2000-May 2001:
Research Associate, Department of Mechanical and Nuclear Engineering, The
Pennsylvania State University, USA
·
February 2000-May 2001:
Consultant, Combustion Propulsion and Ballistic Technology Corp., State
College, PA, USA
·
August 1994-May 2000:
Research and Teaching Assistant, Department of Mechanical and Nuclear
Engineering, The Pennsylvania State University, USA
·
June 1993-September 1993:
Summer Intern at the Defense Industries Research and Development Institute,
Ankara-Turkey
·
June 1992-August 1992:
Summer Intern at the FMC-NUROL Defense Industry, Ankara-Turkey
PROJECTS:
· Principle Investigator, “Development
of Cooling Techniques for Gas Turbine Combustor” SAN-TEZ Project, 2013 – 2016.
·
Consultant, ROKETSAN A.Ş., January 2013 –
August 2015.
· Consultant, TÜBİTAK-SAGE, June 2011 – August 2012.
· Consultant, ROKETSAN A.Ş., December 2009 – December 2010.
· “Development of a High Temperature Setup for Solid
Propellant Ignition” Sponsored by: ROKETSAN A.Ş., Position: Project Manager, 01
December 2009 – 30 July 2010.
· “Development of Internal Ballistic Laboratory of
TÜBİTAK-SAGE” Sponsored by: TÜBİTAK-SAGE, Position: Consultant, January 2003 -
May 2004.
· “Development of a Liquid Propellant Rocket Engine”
Sponsored by: TÜBİTAK-SAGE, Position: Consultant, January 2003 - May 2004.
· “Development of a Lab-Scale Turbulent Diffusion Flame
Reactor to Study the Stability of a Coaxial Impinging-Type Injector and to
Visualize the Flame Contour” Sponsored by: AirProducts and Chemicals, Inc.,
USA, Position: Chief Researcher, May 2000 – May 2001.
· “Experimental Investigation of Flame Spreading and
Flashback Phenomena of Heated, Premixed CH4/H2/C2H6/ H2O/O2 Gas Mixtures at
High Pressures” Sponsored by: Haldor Topsoe A/S, Lyngby, Denmark, Position:
Chief Researcher, January 2000 - May 2001.
· “Development of a Lab-Scale HTPB/GOX Hybrid Rocket Motor
to Study the Effect of Nanophase Metal Particles on the Performance of the
Motor” Sponsored by: Department of the Navy, Indian Head Division, Naval
Surface Warfare Center, MD, USA, Position: Researcher, May 2000 – May 2001.
· “Burning Rate Measurements of ATS 2121, ATS 2128, and ATS
2130 Composite-Modified Double-Base Propellants” Sponsored By: Alliant Tech
Inc., Position: Researcher, June 1999 – July 1999.
· “Characterization of the Burning Behavior of a Composite
Solid Propellant for Airbag Applications in a High-Pressure, Optically
Accessible Combustion Chamber and Experimental Analysis and Numerical
Prediction of the Performance of a Pyrotechnic Igniter for Airbag Applications”
Sponsored by: Talley Defense Systems, Mesa, AZ, USA, Position: Researcher,
April 1998 – July 1999.
· “Experimental Investigation of the Ignition and
Combustion of Ultra Fine Boron Particles in Fluorine-Containing Hot Gas Environments
Using a Flat-Flame Burner Setup” Sponsored by: AeroChem Research Lab,
Princeton, NJ based upon a prime contract from Naval Surface Warfare Center,
Indian Head, MD, USA, Position: Chief Researcher, June 1997 – January 1999.
· “Measurement of Temperature and Species Concentration
Profiles in the Flame region of Solid Propellants Using UV/Visible Absorption
Spectroscopy Technique and Ultra-Fine Thermocouples” Sponsored by: U.S. Army
Research Office, USA, Position: Researcher, August 1994 – September 1997.
· “Experimental Investigation of the Effect of Aging on the
Ignition Behavior of a Composite Solid Propellant for Airbag Applications”
Sponsored by: LORAL Aeronutronic, Rancho Santa Margarita, CA, USA, Position:
Researcher, March 1996 – July 1996.
· “Measurement of Ignition Delay Times of a Family of Solid
Propellants Under Different CO2 Laser Heat Fluxes and Chamber Operating
Conditions” Sponsored by: Atlantic Research Corporation, Gainesville, VA, USA,
Position: Chief Researcher, December 1995 – May 1996.
· “Experimental Investigation of the Mechanisms of the
Ignition and Combustion of Aluminum Particles in the Post-Flame Region of a
Multi-Diffusion Flat-Flame Burner” Sponsored by: ONERA, France, Position:
Researcher, September 1996- June 1997.
MEMBERSHIP:
· MSB Ar-Ge Enerjik Malzemeler Paneli Üyeliği
· MSB Ar-Ge Silah Sistemleri Teknoloji Paneli Üyeliği
· Türk Isı Bilimi ve Tekniği Derneği
· American Institute of Aeronautics and Astronautics (AIAA)
HONORS/AWARDS:
·
Outstanding Paper Award
for the paper entitled “Experimental Investigation of Effusion and Film Cooling
for Gas Turbine Combustor” in 12th International Conference on Heat Transfer,
Fluid Mechanics, and Thermodynamics, July 11-13, 2016, Spain.
·
"The
Arthur D. Rhea Award for Best Paper in 2013 JPC ECS Technical Sessions” for the
paper entitled "An Experimental and Numerical Study on Exploding Foil
Initiators (EFIs)" 49th AIAA/ASME/SAE/ASEE Joint Propulsion
Conference, July 14 – 17, 2013, San Jose, California, USA
· METU Annual Academic Performance Award, 2009
·
Second-place award in Engineering Division of Penn State
Graduate School Research Exhibition, March 1999
·
Recipient of the University Research Initiative (URI)
fellowship from the U.S. Department of Army, 1997
·
First-ranked graduate among 180 graduates from the Department of
Mechanical Engineering/The Middle East Technical University (GPA = 3.83/4.00),
July 1994
·
Dean's high-honor list (GPA above 3.50/4.00) for 8
semesters at the Department of Mechanical Engineering/The Middle East Technical
University, 1990-1994
·
Recipient of a fellowship from the Chamber of Mechanical
Engineers-Ankara Branch, 1993
PUBLICATIONS:
Journals
1. Kalpaklı, B., Acar, E. B., and Ulas, A., “Improved Combustion Model of
Boron Particles for Ducted Rocket Combustion Chambers” Combustion
and Flame 179: 267-279, 2017.
2. Koc, S., Ulas, A., and Yılmaz, N. E., “Characterization of BPN
Pyrotechnic Composition Containing Micro- and Nanometer-Sized Boron Particles” Propellants,
Explosives, Pyrotechnics, DOI:
10.1002/prep.201400255, August 2015.
3. Narin, B., Ozyoruk, Y.,
and Ulas, A., “Two Dimensional Numerical Prediction of
Deflagration-To-Detonation Transition in Porous Energetic Materials” Journal of Hazardous Materials 273,
44–52, 2014.
4.
Ulas, A. and Boysan, E., “Numerical Analysis of
Regenerative Cooling in Liquid Propellant Rocket Engines” Aerospace Science and Technology 24, 187–197, 2013.
5. Curdaneli, S., Ulas, A., Yazici, B.,
“Ignition Delay Time Measurement of A Reduced Smoke Composıte Solid Propellant”
International Journal of Energetic Materials and Chemical Propulsion Vol. 12,
Issue 2, pp. 163-172, DOI: 10.1615/IntJEnergeticMaterialsChemProp.2013005621,
2013.
6.
Aydemir, E., Ulas, A., and Serin, N. , “Thermal
Decomposition and Ignition Of PBXN-110 Plastic-Bonded Explosive” Propellants, Explosives, Pyrotechnics
37, 308-315, 2012.
7.
Cengiz, F. and Ulas, A., “Calculation of Detonation
Properties of Gaseous Explosives Using Generalized Reduced Gradient Nonlinear
Optimization” Propellants, Explosives,
Pyrotechnics 36, No. 4, pp. 314–319, 2011.
8.
Ak, M.A., Ulas, A., Sümer, B., Yazici, B., Yildirim, C.,
Gönc, L.O., Orhan, F.E., "An Experimental Study on the Hypergolic Ignition
of Hydrogen Peroxide and Ethanolamine" Fuel
90 (2011) 395–398.
9.
Aydemir, E., Ulas, A., “A Numerical Study On The Thermal
Initiation of A Confined Explosive in 2-D Geometry” Journal Of Hazardous Materials, Volume: 186, Issue: 1, Pages: 396-400, February 2011.
10.
Cengiz, F. and Ulas, A., "Numerical Prediction of
Steady-State Detonation Properties of Condensed-Phase Explosives" Journal of Hazardous Materials Volume
172, Issues 2-3, Pages 1646-1651,
December 2009.
11.
Püskülcü, G. and Ulas, A. "3-D Grain Burnback
Analysis of Solid Propellant Rocket Motors: Part 1- Ballistic Motor Tests"
Aerospace Science and Technology
Volume 12, Issue 8, Pages 579-584, December 2008.
12.
Püskülcü, G. and Ulas, A. "3-D Grain Burnback
Analysis of Solid Propellant Rocket Motors: Part 2- Modeling and
Simulations" Aerospace Science and
Technology Volume 12, Issue 8, Pages 585-591, December 2008.
13.
Ulas, A. and Kuo, K.K., “Laser-Induced Ignition of Solid
Propellants for Gas Generators” Fuel
87 (2008) pp. 639-646, 2008.
14. Ulas, A., Risha, G. A., and Kuo, K. K., “An Investigation
of the Performance of a Boron/Potassium-Nitrate Based Pyrotechnic Igniter” Propellants, Explosives, Pyrotechnics
31, No. 4, pp. 311-317, 2006.
15. Ulas, A., Risha, G. A., and Kuo, K. K., “Ballistic
Properties and Burning Behaviour of an Ammonium Perchlorate/Guanidine
Nitrate/Sodium Nitrate Airbag Solid Propellant” Fuel 85, pp. 1979-1986, 2006.
16. Ulas, A., “Passive
Flow Control in Liquid-Propellant Rocket Engines with Cavitating Venturi” Flow Measurement and Instrumentation 17
(2006) 93-97.
17. Ulas, A., Lu, Y.-C., and Kuo, K. K., "Ignition and
Combustion Characteristics of RDX-Based Pseudo Propellants" Combustion Science and Technology, Vol.
175, pp. 695-720, 2003.
18. Ulas, A., Kuo, K. K., and Gotzmer, C., "Ignition and
Combustion of Boron Particles in Fluorine-Containing Environments," Combustion and Flame 127:1935-1957, 2001.
19. Ulas, A. and Kuo, K. K., "Effect of Aging on
Ignition Delay Times of a Composite Solid Propellant Under CO2 Laser
Heating," Combustion Science and
Technology, Vol. 127, pp. 319-331, 1997.
20. Lu, Y.-C., Ulas, A., Boyer, E., and Kuo, K. K.,
"Determination of Temperature Profiles of Self-Deflagrating RDX by
UV/Visible Absorption Spectroscopy and Fine-Wire Thermocouples," Combustion Science and Technology, Vol.
123, pp. 147-163, 1997.
Conference / Symposium Proceedings
21. Koyuncuoğlu Ç. and Ulaş, A. “Design and Optimization of a Compact Heat
Exchanger for a Supersonic Aircraft” 15th
International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, 25
– 28 JULY 2021 (Virtual Conference).
22. Koyuncuoğlu Ç. and Ulaş, A. “CFD Comparison Between 3-D Flow and Porous
Media Approach for an Optimized Heat Exchanger”
15th International Conference on Heat Transfer, Fluid Mechanics and
Thermodynamics, 25 – 28 JULY 2021 (Virtual Conference).
23. Koyuncuoğlu Ç. and Ulaş, A. “Fanning Friction Factor & Colburn J
Factor Prediction for Wavy and Offset Strip-Fins” 15th International Conference on Heat
Transfer, Fluid Mechanics and Thermodynamics, 25 – 28 JULY 2021 (Virtual
Conference).
24. Öz, L. Ç., Özer, A. C., Sümer, B., and Ulas, A. “Evaluation of an
Augmented Spark Igniter’s Flame Length and Comparison of Numerical and
Experimental Investigations” AIAA- 2019- 3861, AIAA
Propulsion and Energy 2019 Forum, Indianapolis, IN, USA, 19-22 August 2019.
25. Tokgöz, T., Sümer, B., and Ulas, A. “Investigation of the Effect of
Geometrical Parameters of Pressure Swirl Atomizer on the Hollow Cone Spray”
AIAA- 2019- 4119, AIAA
Propulsion and Energy 2019 Forum, Indianapolis, IN, USA, 19-22 August 2019.
26. Aydogdu, A., Sümer, B., Yazici, B. and Ulas, A. “Design Methodology for
a Central Injection Type Supersonic Air Ejector and Diffuser System for
Altitude Simulation” AIAA- 2019-4355, AIAA Propulsion and Energy 2019 Forum, Indianapolis, IN,
USA, 19-22 August 2019.
27. Özcan, S. C., Curdaneli, S. and Ulas, A. “Burning Rate Comparison of a
Mathematical Model with Experimental Results for AP/HTPB Based Composite
Propellants” AIAA- 2018-4578, 54th AIAA/ASME/SAE/ASEE Joint Propulsion
Conference, Cincinnati, Ohio, USA, July 9-11, 2018.
28. Koç, S., Kombe, F. E., and Ulas, A. “Ballistic Performance of BPN
Igniter Compositions Containing Micron and Nano-Sized Boron Particles” AIAA- 2017-4797, 53th
AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Atlanta, GA, USA, 10-12 July
2017.
29. Yilmaz, Ç., Bayramoğlu, M., Gocmen, M. M., and Ulas, A. “Design and
Testing of a Green Bipropellant Thruster for Satellite Propulsion” AIAA- 2017-5002, 53th
AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Atlanta, GA, USA, 10-12 July
2017.
30. Inanlı, S., Yasa, T., and Ulas, A., “A Test Bench for Gas Turbine
Combustor Cooling Investigations” 12th
International Conference on Heat Transfer, Fluid Mechanics, and Thermodynamics,
July 11-13, 2016, Costa del Sol, Spain.
31. Inanlı, S., Yasa, T., and Ulas, A., “Experimental Investigation of Effusion and Film
Cooling for Gas Turbine Combustor” 12th International Conference on Heat
Transfer, Fluid Mechanics, and Thermodynamics, July 11-13, 2016, Costa del Sol,
Spain.
32. Koc, S. and Ulas, A. “Comparison of BPN Igniter Compositions Containing
Micron- and Nano-Sized Boron Particles” AIAA-2015-3907, 51th AIAA/ASME/SAE/ASEE Joint Propulsion
Conference, Orlando, Fl, USA, 27 -29 July 2015.
33. Yilmaz, M. Y.,
Kizilkaya, B., Koc, S., and Ulas, A., “An Experimental and Numerical
Study on Exploding Foil Initiators (EFIs)” AIAA 2013-3817, Chapter DOI:
10.2514/6.2013-3817, 49th AIAA/ASME/SAE/ASEE Joint Propulsion
Conference, San Jose, CA, USA, 15 -17 July 2013.
34. Curdaneli, S., Ulas, A., Ak, M.A., and Yazici, B.,
“Ignition Delay Time Measurement of a Reduced Smoke Composite Solid Propellant
”, Poster Presentation in the 9th International Symposium on Special
Topics in Chemical Propulsion (9-ISICP), 9 -13 July 2012, Québec City, Canada.
35. Narin, B.,
Ozyoruk, Y., ve Ulas, A., "Katı Enerjik Malzemelerde Yanma-Patlama
Geçişinin (YPG) İki-Fazlı, İki-Boyutlu Sayısal Benzetimi", 2. Ulusal
Havacılık ve Uzay Konferansı, UHUK-2008-050, 15-17 Ekim 2008, İTÜ, İstanbul.
36. Aydemir, E., Ulas, A., and Serin, N., "Transient
Reactive Conduction Modeling of Cook-Off of Munitions", The 3rd
International Symposium on Energetic Materials and their Applications, Japan
Explosives Society, April 2008, Tokyo, Japan.
37. Aydemir, E., Ulas, A., and Serin, N., "Experimental
Investigation of Cook-Off of Munitions", The 3rd International Symposium
on Energetic Materials and their Applications, Japan Explosives Society, April
2008, Tokyo, Japan.
38. Narin, B.,
Ozyoruk, Y., and Ulas, A., "One-Dimensional Two-Phase Modeling of
Deflagration-To-Detonation Transition (DDT) Phenomenon in Porous Energetic
Materials" 4th Ankara International Aerospace Conference, AIAC-2007-030,
10-12 September 2007, METU, Ankara, Turkey.
39. Cürdaneli, S., Ak, M. A., and Ulas, A., “Experimental
Analysis on the Measurement of Ballistic Properties of Solid Propellants” 3rd
International Conference on Recent Advances in Space Technologies RAST 2007,
14-16 June 2007, Istanbul, Turkey.
40. Boysan, M. E., Ulas, A., Toker, K. A., and Seckin, B.,
“Comparison of Different Aspect Ratio Cooling Channel Designs for a Liquid
Propellant Rocket Engine” 3rd International Conference on Recent Advances in
Space Technologies RAST 2007, 14-16 June 2007, Istanbul, Turkey.
41. Narin, B.,
Ozyoruk, Y., and Ulas, A., “Application of Parallel Processing on
Two-Phase Deflagration-to-Detonation (DDT) Modeling”, Proceedings of Parallel
CFD 2007 Conference, Antalya, Turkey, May 21-24, 2007.
42. Cengiz, F., Narin, B., and Ulas, A., “GasPX: A Computer
Code for The Determination of The Detonation Properties of Energetic Premixed
Gaseous Mixtures” Proc. of the 10th International Seminar: New Trends in
Research of Energetic Materials, Pardubice, Czech Republic, p. 357, April, 2007.
43. Cengiz, F., Narin, B., and Ulas, A., “BARUT-X: A Computer
Code for Computing The Steady-State Detonation Properties of Condensed Phase
Explosives” Proc. of the 10th International Seminar: New Trends in Research of
Energetic Materials, Pardubice, Czech Republic, p. 117, April, 2007.
44. Aydemir, E., Ulas, A., Serin, N., “REACON-1D: Thermal
Analysis Code for Energetic Materials Using Finite Element Method”, Proc. Of
the 10th International Seminar: New Trends in Research of Energetic Materials, pp.
71-80 , April, 2007, Pardubice, Czech Republic.
45. Sarisin, M., Ulas, A., Tinaztepe, T., and Albayrak, K.,
“Conceptual Design of a Connected Pipe Test Facility for Ramjet Applications”
AIAA-2006-4446, 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and
Exhibit, Sacramento, California, USA, July 9-12, 2006.
46. Ulas, A., “Roket Katı Yakıtlarında Yüksek Enerji Katkı
Maddesi Olarak Bor Kullanımı” Savunma Teknolojileri Kongresi SAVTEK 2006, 29-30
Haziran 2006, pp. 401-412, ODTU, Ankara.
47. Cengiz, F., Narin, B., Ulas A., “Kararlı Durum ve Kimyasal Denge Koşulunda
Patlama Tepkimesinin Modellenmesi ve Uygulamalar” Savunma Teknolojileri
Kongresi SAVTEK 2006 29-30 Haziran 2006, pp. 413-421, ODTU, Ankara.
48. Sarisin, M. and Ulas, A., “Investigation of Combustion
Control in the Vitiator of a Connected Pipe Setup for Ramjet Applications”
AIAA-2006-814, 44th AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada,
USA, Jan. 9-12, 2006.
49. Narin, B., Ozyoruk, Y., and Ulas, A., “1-D Two-Phase Reactive
Model for Deflagration to Detonation Transition (DDT) Phenomenon in Porous
Energetic Materials” 3rd Ankara International Aerospace Conference,
AIAC-2005-014, 22-25 August 2005, METU, Ankara, Turkey.
50. Ulaş, A., Püskülcü, G., Demiran, H. V., Gündüz, D. E.,
Yıldırım, C., Ak, M. A., “TÜBİTAK-SAGE
Yüksek Basınçlı Yanma Laboratuvarı ve Pencereli Katı Yakıt Yakıcı Düzeneği
Tasarım/Üretim ve Hizmete Alma Çalişmaları” 8. Uluslararası Yanma Sempozyumu,
8-9 Eylül 2004, Ankara, Türkiye.
51. Ulas A., Ak, M. A., Orhan, F. E., Gunduz D. E., Gonc, L.
O., Sumer, B., Puskulcu, G., Yildirim, C., “Türkiye’nin Uzaya Bağımsız
Ulaşımının Anahtarı: İlk Milli Hidrojen Peroksit-Kerosen Sıvı Yakıtlı Roket
Motoru Tasarımı” Savunma Teknolojileri Kongresi SAVTEK 2004, 24-25 Haziran
2004, ODTU, Ankara.
52. Ulas, A., Ak, M. A., Orhan, F. E., Gündüz, D. E., Gönç,
L. O., Sümer, B., Püskülcü, G., Yıldırım, C., "Design and Testing of a
Hydrogen Peroxide-Kerosene Liquid Rocket Engine", Istanbul Space
Propulsion Workshop ISPW 2004, 10-12 June 2004, Istanbul, Turkey.
53. Ulas, A., Kuo, K. K., and Gotzmer, C., "Effects of
Fluorine-Containing Species on the Ignition and Combustion of Boron Particles:
Experiment and Theory," Combustion of Energetic Materials, Editors: Kuo,
K. K. and De Luca, L. T., Begell House, Inc., New York, NY, 2002.
54. Risha, G. A., Ulas, A., Boyer, J. E., Kumar, S., and Kuo,
K. K., "Performance of Several HTPB-Based Hybrid Rocket Fuel Formulations
Containing Nano-Phase Energetic Particles," Poster Presentation in the 221st
ACS National Meeting, San Diego, CA, USA, April 1-5, 2001.
55. Risha, G. A., Ulas, A., Boyer, E., Kumar, S., and Kuo, K.
K., “Combustion of HTPB-Based Solid Fuels Containing Nano-sized Energetic
Powder in a Hybrid Rocket Motor,” AIAA Paper No. 2001-3535, 37th
AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Salt Lake City,
Utah, USA, July 8-11, 2001.
56. Risha, G. A., Ulas, A., Kuo, K. K., and Koch, D. E.,
“Combustion Behavior of TAL-1308 Composite Solid Propellant for Airbag
Applications,” AIAA Paper No. 99-2632, 35th AIAA/ASME/SAE/ASEE Joint Propulsion
Conference and Exhibit, Los Angeles, CA, June 20-23, 1999.
57. Risha, G. A., Ulas, A., Kuo, K. K., and Koch, D. E.,
"Characterization of Output Mass and Energy Fluxes of a Pyrotechnic
Igniter," AIAA Paper No. 99-2631, 35th AIAA/ASME/SAE/ASEE Joint Propulsion
Conference and Exhibit, Los Angeles, CA, June 20-23, 1999.
58. Ulas, A., Lu, Y.-C., and Kuo, K. K., "Ignition Delay
and Flame Structure Measurements of RDX-Based Pseudo Propellants," Proceedings
of the 24th International Pyrotechnic Seminar, pp. 531-542, 1998.
59. Ulas, A., Kuo, K. K., and Yeh, C.-L., "Ignition and
Combustion of Single Boron Particle In Fluorine/Oxygen Containing
Environments," Proceedings of the 35th JANNAF Combustion Subcommittee
Meeting, Vol. 1, pp. 549-563, Tucson, AZ, December 7-11, 1998.
60. Risha, G. A., Ulas, A., Kuo, K. K., and Koch, D. E.,
"Characterization of Combustion Behavior of TAL-1308 Solid
Propellant," Proceedings of the 35th JANNAF Combustion Subcommittee
Meeting, Vol. 1, pp. 305-319, Tucson, AZ, December 7-11, 1998.
61. Ulas, A., Lu, Y.-C., and Kuo, K. K., "Determination
of Temperature and OH Concentration Profiles of RDX/CAB Pseudo Propellants
Using UV/Visible Absorption Spectroscopy," Challenges in Propellants and
Combustion - 100 Years After Nobel, Editor: K. K. Kuo, pp. 885-895, Begell
House, Inc., New York, NY, 1997.
62. Brossard, C., Ulas, A., Yeh, C.-L., and Kuo, K. K.,
"Ignition and Combustion of Isolated Aluminum Particles in the Post-Flame
Region of a Flat-Flame Burner," Proceedings of the 16th International
Colloquium on the Dynamics of Explosions and Reactive Systems, Cracow, Poland,
August 3-8, 1997.
63. Ulas, A. and Kuo, K. K., "Ignition Characteristics
of Aged Composite Solid Propellants Under CO2 Laser Heating," Proceedings
of the Propulsion Engineering Research Center 9th Annual Symposium on
Propulsion, Cleveland, OH, October 1-2, 1997.
64. Ulas, A., Lu, Y.-C., Kuo, K. K., and Freyman, T.,
"Measurement of Temperatures and NO and OH Concentrations of Solid
Propellant Flames Using Absorption Spectroscopy," Proceedings of the 32nd
JANNAF Combustion Subcommittee Meeting, pp. 461-470, 1995.
65. Lu, Y.-C., Ulas, A., Kuo, K. K., and Freyman, T.,
"Absorption Spectroscopy of Solid Propellant Flames," AIAA Paper No.
95-2713, 31st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, San
Diego, CA, July 10-12, 1995.
66. Risha, G. A., Ulas, A., Boyer, J. E., Kumar, S., and Kuo,
K. K., "Performance of Several HTPB-Based Hybrid Rocket Fuel Formulations
Containing Nano-Phase Energetic Particles," 221st American Chemical
Society National Meeting, San Diego, CA, USA, April 1-5, 2001 (Poster
Presentation).
SEMINARS
· Ulaş, A., “Yakıt, Patlayıcı ve Tutuşturucu Uygulamalarında Nano
Malzeme Kullanımı” İleri Malzemeler Forumu 2014, SSM, Ankara, 02-03 Aralık
2014..
· Ulaş, A., “Katı Yakıtlar İçin Enerjik Katkı Maddesi: Bor”
Enerjik Malzemeler ve Askeri Uygulamaları Semineri, MSB Ar-Ge Daire Başkanlığı,
Ankara, 22-23 Mayıs 2006.
· Ulaş, A., “Katı Yakıtların ve Enerjik Malzemelerin
Balistik Karakterizasyonu” Enerjik Malzemeler ve Askeri Uygulamaları Semineri,
MSB Ar-Ge Daire Başkanlığı, Ankara,
22-23 Mayıs 2006.
· Ulaş, A., “Hibrid Roket Motoru” Milli Savunma Bakanlığı
Havacılık ve Uzay Paneli, MSB Ar-Ge Daire Başkanlığı, Ankara, 24 Mart 2006.
· Ulas, A., “ODTÜ Hibrit Roket Motoru Projesi” Milli
Savunma Bakanlığı Silah Sistemleri Teknoloji Paneli, MSB Ar-Ge Daire
Başkanlığı, Ankara, 18 Aralık 2006.
SUPERVISED THESIS:
M.S. Thesis
1. Dünya Berrak Söğütlü “Analysis of Slosh Damping in Liquid Rocket Engine Propellant
Tank” Department of Mechanical Engineering,
METU, 2021.
2. Ataman Aydoğdu “Design of a Test Setup for Altitude Simulation” Department of Mechanical Engineering, METU, 2019.
3. Levent Çağatay Öz “Experimental and Numerical Investigation of an
Augmented Spark Igniter and Evaluation of Igniter’s Effective Flame Length as a
Performance Parameter” Department of
Mechanical Engineering, METU, 2019.
4. Tolga Tokgöz “Investigation of the Effect of Geometrical Parameters of
Pressure Swirl Atomizer on the Hollow Cone Spray” Department of Mechanical Engineering, METU, 2019.
5. Serhat Cem Özcan “Burning Rate Comparision of a Mathematical Model with
Experimental Results for AP/HTPB/IRON OXIDE Based Composite Propellants” Department of Mechanical Engineering, METU, 2019.
6. Çağatay Koyuncuoğlu “Optimization of Air to Air Cross Flow Heat
Exchanger” Department of Mechanical
Engineering, METU, 2018.
7. Çağlar Yılmaz, “Design and Ground Testing of a Liquid Bi-Propellant
Thruster” Department of Mechanical
Engineering, METU, 2017.
8. Tuğberk İncekürk, “Experimental and Numerical Study of Detonation in a
Closed Chamber” Department of Mechanical
Engineering, METU, 2016.
9. Emir Topkaraoğlu, "Design and
Development of a Cylinder Expansion Test Setup for Determination of Equation of
State Parameters of Various Explosives" Department of Mechanical
Engineering, METU, 2014.
10. M. Yusuf Yılmaz,
"Design and Analysis of a High Voltage Exploding Foil Initiator For
Missile Systems" Department of Mechanical Engineering, METU, 2013.
11. Suat Erdem Ertuğrul, “The Effects of Geometric Design
Parameters on the Flow Behavior of a Dual Pulse Solid Rocket Motor” Department
of Aerospace Engineering, METU, 2012 (Supervisor: Assoc. Prof. Dr. Funda
Kurtuluş, Co-supervisor: Prof. Dr. Abdullah Ulas).
12.
Bora Gerçeker, "Drop Test Simulation of a Munition
with Foams and Parametric Study on Foam Geometry and Material" Department
of Mechanical Engineering, METU, 2012, (Co-supervisor: Prof. Dr. Levend Parnas).
13.
Emre Songür, “Design and Validation of a Combustion Test
Rig for Airbreathing Rocket Propulsion Studies” Department of Mechanical
Engineering, METU, 2010, (Co-supervisor: Dr. Kemal Atılgan Toker).
14.
Arda Ceylanoğlu, "An Accelerated Aerodynamic
Optimization Approach for a Small Turbojet Engine Centrifugal Compressor"
Department of Mechanical Engineering, METU, 2009, (Co-supervisor: Dr. Mehmet
Ali Ak).
15.
İbrahim Kaya, "Design Analysis and Performance
Testing of a Jet Vane" Department of Mechanical Engineering, METU, 2009.
16.
Aykut Öksüz, "Ballistic Performance Analysis of
Modern Base Bleed Artillary Projectiles" Department of Mechanical
Engineering, METU, 2009, (Co-supervisor: Dr. Tuğrul Tınaztepe).
17.
Emre Boysan, “Analysis of Regenerative Cooling in Liquid
Propellant Rocket Engines” Department of Mechanical Engineering, METU, 2008.
18.
Erdoğan Aydemir, “Study of Ignition Characteristics of a
Plastic Bonded Explosive” Department of Mechanical Engineering, METU, 2008,
(Co-supervisor: Dr. Nadir Serin).
19. Sertaç Cürdaneli, “Experimental Analysis on the
Measurement of Ballistic Properties of Solid Propellants” Department of
Mechanical Engineering, METU, 2007.
20. Fatih Cengiz, “Steady-State Modeling of Detonation
Phenomenon in Premixed Gaseous Mixtures and Energetic Solid Explosives”
Department of Mechanical Engineering, METU, 2007, (Co-supervisor: Bekir Narin,
M.Sc.).
21. Ayça Çekiç, “Experimental Study of Solid Propellant
Combustion Instability” Department of Mechanical Engineering, METU, 2005.
22. Mustafa Nevzat Sarışın, “Design of a Connected Pipe Test
Facility for Ramjet Applications” Department of Mechanical Engineering, METU,
2005 (Co-supervisor: Prof. Dr. Kahraman Albayrak).
23. Gökay Püskülcü, “Analysis of 3-D Grain Burnback of Solid
Propellant Rocket Motors and Verification with Rocket Motor Tests” Department
of Mechanical Engineering, METU, 2004.
Ph. D. Thesis
24. Suzan Koç, “An Experimental Study on the Ignition and
Combustion of Pyrotechnic Compositions” Department of Mechanical Engineering,
METU, 2015.
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