Publications

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Journal Papers

  1. Akay, H.U., Oktay, E.,Manguoglu, M., Sivas, A. A., " Improved Parallel Preconditioners for Multi-physics Topology Optimization", International Journal of Computational Fluid Dynamics, Vol. 30, 2016, pp.329-336.

  2. Oktay, E., Akay, H., U., Sehitoglu, O., T., "Three-dimensional Structural Topology Optimization of Aerial Vehicles Under Aerodynamic Loads", Computer & Fluids, Vol. 92, 2014, pp.225-232

  3. Oktay, E., Akay, H., Merttopcuoglu, O., "Parallelized Structural Topology Optimization and CFD Coupling for Design of Aircraft Wing Structures ", Computers & Fluids, Vol. 49, No. 1, 2011, pp.141-145

  4. Oktay, E., Akay, H., U., " CFD Predictions of Dynamic Derivatives for Missiles," AIAA Journal of Spacecraft and Rockets. (Accepted for publication)

  5. Oktay, E., Akay, H. U., Uzun, A., "A Parallelized 3D Unstructured Euler Solver for Unsteady Aerodynamics," AIAA Journal of Aircraft, Vol. 40, No.2, 2003, pp.348-354.

  6. Oktay, E., Asma, C. O., "Fast Drag Prediction Method Using Euler Equations," AIAA Journal of Spacecraft and Rockets, Vol. 37, No. 5, 2000, pp. 692-697.

  7. Oktay, E., Alemdaroğlu, N., Tarhan, E., Champigny, P., d’Espiney, P., “Unstructured Euler Solutions For Missiles,” Journal of Aerospace Sciences and Technologies, Vol. 4, No. 7, 2000, pp. 453-461.

  8. Oktay, E., Alemdaroğlu, N., Tarhan, E., Champigny, P., d’Espiney, P., “Euler and Navier-Stokes Solutions for Missiles at High Angles of Attack,” AIAA Journal of Spacecraft and Rockets, Vol. 36, No. 6, 1999, pp. 850-858.

  9. Oktay, E., Akmandor, S., İ. and Üçer, A., Ş., “A Numerical Solution of 3D Inviscid Rotational Flow in Turbines and Ducts”, International Journal for Numerical Methods in Fluids”, Vol. 26, 1998, pp. 907-926.

Book Chapters

  1. Oktay, E. “Appendix 6 Case F : CFD Solutions for ONERA Non-Circular Body”, In "Turbulence Modeling for High Speed Vehicles", RTO Technical Report, TR-AVT-082, April 2005.

  2. Hennig, P., Nöding, P., Champigny, P., Oktay, E., “Chapter2 - Major problem areas for turbulence modelling on missiles”, In “Turbulence Modeling for High Speed Vehicles”, RTO Technical Report, TR-AVT-082, April 2005.

Conference Proceedings

  1. Oktay, E., Arpaci A., Sehitoglu, O., T., Akay, H.U., "A Parallel Aerostructural Shape Optimization Platform For Airplane Wings", Parallel CFD'19, 14-17 Mayıs, 2019, Antalya Turkey.

  2. Akay, H.U., Oktay, E.,Manguoglu, M., Sivas, A. A., " Improved Parallel Preconditioners for Multi-physics Topology Optimization", Parallel CFD'15, 17-22, 2015, Montreal, Canada
  3. Akay, H.U., Oktay, E., "Kavramdan Gerçek Tasarıma Giden Yol", Yapı Mekaniği Semineri 2013, 15 Haziran, 2013, Eskişehir.

  4. Akay, H., Oktay, E., "Development of Integrated Engineering Analysis and Design Tools From Solid Modeling to Design Optimization", Parallel CFD'13, 20-24 Mayıs, 2013, Changsha, China.

  5. Oktay, E., Akargün, Ö., Işık, S., Oktay, F., "Hava Araçları Aerodinamik Şekil Optimizasyonu için Kavramsal Tasarım Aracı", SAVTEK2012, 20-22 Haziran, 2012, Ankara.

  6. Oktay, E., Akay, H., "Yapısal Sistemlerin Yoğunluk Değişimi Yönetimi ile Topoloji Optimizasyonu", SAVTEK2012, 20-22 Haziran, 2012, Ankara.

  7. Akay, H., Oktay, E., "Yapısal Tasarım için Topoloji Optimizasyonu", Yapı Mekaniği Semineri 2012, 15 Haziran 2012, Eskişehir.

  8. Oktay, E., Akay, H., "Structural Topology Optimizations Under Aerodynamic Loads Using PETSc as Parallel Solver", Parallel CFD'12, May 21-25, Atlanta, USA.

  9. Oktay, E., Akay, H., Merttopcuoglu, O., Sener C., "Parallelized Structural Topology Optimization and CFD Coupling for Design of Aircraft Structures", Parallel CFD’10, May 17-21, 2010, Kaohsiung, Taiwan.

  10. Akay, H.U, Payli, R., Liu, J., Ecer, A., and Oktay, E.,“ An Overset Unstructured Grid Method for Parallel Solvers”, Parallel CFD’09, May 18-22, 2009, Moffett Field, California, USA. Published by Springer Verlag.

  11. Oktay, E., Merttopcuoglu, O., Sener C., Ketenci A., Akay, H., "Grid Altyapısı Üzerinde bir Füzenin Şekil En İyileme Çalışması", Başarım’09, Nisan 15-18, 2009, Ankara.

  12. Oktay, E., Merttopcuoglu, O., Sener C., Ketenci A., Akay, H., "Parallel Shape Optimization of a Missile on a Grid Infrastructure ", Parallel CFD’08, May 19-22, 2008, Lyon, France.

  13. Oktay, E., Merttopcuoglu, O., Akay, H., "An Unstructured Hybrid Method For Store Separation Simulations", AIAC-2007-104, Ankara International Aerospace Conference, September 10-12, 2007, Ankara, Turkey.

  14. Oktay, E., Merttopcuoglu, O., "Combined Trajectory And Airframe Shape Optimization Of A Missile Using Parallel Genetic Algorithms", AIAC-2007-085, Ankara International Aerospace Conference, August September 10-12, 2007, Ankara, Turkey.

  15. Oktay, E., Merttopcuoglu, O., Akay, H., “ An Approach for Parallel CFD Solutions of Moving Boundary Problems,” Parallel CFD’07, May 21-24, 2007, Antalya, Turkey

  16. Akay, H.U., Baddi A., Oktay, E., “Large-Scale Parallel Computations Of Solid-Fluid Interaction Problems For Aeroelastic Flutter Predictions”, AIAC-2005-002, Ankara International Aerospace Conference, August 22-25, 2005, Ankara, Turkey.

  17. Akgun, M. A., Kavukcuoglu, K., Oktay, E., “An Uncoupled Procedure For Wing Flutter Analysis”, AIAC-2005-089, Ankara International Aerospace Conference, August 22-25, 2005, Ankara, Turkey.

  18. R. Payli, R., Akay, H.U, Baddi, A., Yilmaz, E., Ecer, A., and Oktay, E.,“CFD Applications of TeraGrid,” Proceedings of Parallel CFD’05, May 24-27,2005, University of Maryland, College Park, MD, USA. Edited by A. Deane, et al., Elsevier Science, 2005.

  19. Akay, H. U., Oktay, E., "Parallel Adaptivity for Solution of Euler Equations Using Unstructured Meshes,” Parallel Computational Fluid Dynamics - New Frontiers and Multi-Disciplinary Applications, K. Matsuno, et al. (Editors), Elsevier Science B.V., Amsterdam, The Netherlands, 2003, pp. 371-378.

  20. Akay, H. U., Oktay E., Li Z., He X., “Parallel Computing For Aeroelasticity Problems,” AIAA Paper 2003-3511, 33rd AIAA Fluid Dynamics Conference, June 23-27, 2003, Orlando, Florida, United States.

  21. Akay, H. U., Oktay E., He X., Payli R., U. “A Code Coupling Application for Solid-Fluid Interactions and Parallel Computing”, May 13-15, 2003, Parallel CFD 2003, Moscow, Russia.

  22. Akay, H., U., Oktay, E., “Parallel Adaptivity For Solution Of Euler Equations Using Unstructured Solvers,” May 20-22, 2002, Parallel CFD 2002, Kansai Science City, Japan.

  23. Oktay, E., Akay, H., U., " CFD Predictions of Dynamic Derivatives for Missiles," AIAA Paper 2002-0276, Jan. 2002.

  24. Oktay, E., Akay, H. U., Uzun, A., "A Parallelized 3D Unstructured Euler Solver for Unsteady Aerodynamics," AIAA Paper 2002-0107, Jan. 2002.

  25. Tarhan, E., Oktay, E., Kavsaoglu, M., “Solution of Airfoil-Flap Configurations by Using Chimera Grid System”, ICAS-2002, Toronto, Canada, 2002.

  26. Oktay, E., Asma, C. O., “Drag Prediction with an Euler Solver at Supersonic Speeds,” AIAA paper 2000-0392, Jan. 2000.

  27. Oktay, E., Alemdaroğlu, N., Tarhan, E., Champigny, P., d’Espiney, P., “3D Euler and Thin Layer Navier-Stokes Solutions for Missiles at Supersonic Speeds and High Angles of Attack,” RTO MP-5, 1998, pp. 27.1-27.12.

  28. Oktay, E., Alemdaroğlu, N., Tarhan, E., Champigny, P., d’Espiney, P., “Unstructured 3D-Euler Computations for Missiles at Supersonic Speeds and High Angles of Attack,” AIAA Paper 98-0392, Jan. 1998.

  29. Oktay, E., Newman, J.C., Jr., and Baysal, O., “A Comparison of Unstructured Grids and Locally Structured Grids for Complex Geometries,” 70th Annual Meeting of Virginia Academy of Science, Richmond, VA, May 18-21, 1992.

  30. Oktay, E., Akmandor, S., İ. and Üçer, A., Ş., “Three Dimensional Solution of Internal Flows Using a Cell Vertex Finite Volume Method”, AGARD-CP-510, 1991, Paper No: 27

  31. Oktay E., “Roket Tasarımında Sayısal Akışkanlar Dinamiği Uygulamaları”, Savunma Sanayiindeki Teknolojik Gelişmeler Sempozyumu”, Kara Harp Okulu, 5-6 Haziran 1997, Sa. 481-488.

  32. Oktay E., “Roket Tasarımında Sayısal Akışkanlar Dinamiğinin (SAD) Rolü ve Roketsan SAD Çalışmaları”, 1inci Havacılık Sempozyumu, Hava Harp Okulu, 9-10 Haziran 1994, Sa. 83-88.

  33. Oktay E., “Akışkan-Yapı Etkileşimi Problemleri İçin Paralel Bilgisayar Uygulamaları”, Havacılıkta İleri Teknolojiler ve Uygulamaları Sempozyumu, 9-10 Aralık 2004.

  34. Oktay E., “Aerodinamik Sönümleme Katsayısı Tayini İçin Paralel Bilgisayar Hesaplamaları”, Havacılıkta İleri Teknolojiler ve Uygulamaları Sempozyumu, 9-10 Aralık 2004.

Thesis

  1. Oktay, E., “A Cell Vertex Method for 3D Inviscid Internal Flows”, Ph.D. Thesis, M.E.T.U., Ankara, 1991.

  2. Oktay, E., “An Investigation on The Solution of Euler Equations for Compressible Flows”, M.S. Thesis, M.E.T.U., Ankara, 1986.