{"id":6,"date":"2014-02-02T21:21:37","date_gmt":"2014-02-02T19:21:37","guid":{"rendered":"http:\/\/blog.metu.edu.tr\/mkoken\/?page_id=6"},"modified":"2025-10-17T10:13:05","modified_gmt":"2025-10-17T07:13:05","slug":"publications","status":"publish","type":"page","link":"https:\/\/blog.metu.edu.tr\/mkoken\/publications\/","title":{"rendered":"PUBLICATIONS"},"content":{"rendered":"

International Journal Publications:<\/strong><\/p>\n

    \n
  1. Haspolat, E., Koken, M.<\/strong> (2025). “Drag on Sparse and Rigid Emergent Canopies: Experimental and Numerical Investigation.” Journal of Hydraulic Engineering<\/em>, 151(6), pp. 1-15.<\/li>\n
  2. Koken, M.<\/strong>, Cotel, E. B. (2025). “Numerical investigation of the coherent structures in a curved channel with a spur dike at different angles with respect to the flow directions.” Physics of Fluids<\/em>, 37, p.065134.<\/li>\n
  3. Shumilova, O., Sukhodolov, A., Osadcha, N, Oreshchenko, A., Constantinescu, G., Afanasyev, S., Koken, M.<\/strong>, Osadchyi, V., Rhoads, B., Tockner, K., Monaghan, M. T., Schroder, B., Nabyvanets, J., Wolter, C., Lietytska, O., van de Koppel, J., Magas, N., Jahnig, S. C., Lakisova, V., Trokhymenko, G., Venohr, M., Komorin, V., Stepanenko, S., Khilchevskyi, V., Domisch, S., Blettler, M., Gleick, P., De Meester, L., Grossart, H. P. (2025). “Environmental effects of the Kakhova Dam destruction by warfare in Ukraine.” Science<\/em>, 387 (6739), pp. 1181-1186.<\/li>\n
  4. Haspolat, E., Koken, M.<\/strong> (2024). “Experimental investigation of the total flow resistance in emergent and submerged rigid canopy flows.” Journal of Hydro-Environment Research Vol. 54, pp. 37-52.<\/li>\n
  5. Mosaddeghi, F., Koken, M.<\/strong>, Aydin, I. (2023). \u201cFinite volume analysis of dam breaking subjected to earthquake accelerations.\u201d Journal of Hydraulic Research<\/em>, 61(6), pp. 854-865.<\/li>\n
  6. Koken, M.<\/strong>, Constantinescu, S. G. (2023). “Influence of submergence ratio on flow and drag forces generated by a long rectangular array of rigid cylinders at the sidewall of an open channel.” Journal of Fluid Mechanics<\/em>, Vol. 966.<\/li>\n
  7. Koken, M.<\/strong>, Aydin, I, Ademoglu, S. (2022). “An iterative hydraulic design methodology based on numerical modeling for piano key weirs.”, Journal of Hydro-Environment Research<\/em>, Vol. 40, pp.131-141.<\/li>\n
  8. Koken, M.<\/strong>, Constantinescu, S. G. (2021). “Flow structure inside and around a rectangular array of emerged cylinders located at the sidewall of an open channel.”, Journal of Fluid Mechanics<\/em>, Vol. 910.<\/li>\n
  9. Koken, M.<\/strong> (2018). “Coherent structures at different contraction ratios caused by two spill-through abutments.”, Journal of Hydraulic Research, Vol. 56, pp. 324-332.<\/li>\n
  10. Cheng, Z., Koken, M.<\/strong>, \u00a0Constantinescu G. (2018). “Approximate methodology to account for effects of coherent structures on sediment entrainment in RANS simulations with a movable bed and applications to pier scour.”, Advances in Water Resources<\/em>, Vol. 120, pp.65-82.<\/li>\n
  11. Yilmaz, M., Yanmaz, A. M., Koken, M<\/strong>, (2018). “Time-evolution of clear water scouring at dual bridge piers.”, Teknik Dergi<\/em>, Vol. 29, pp. 8167-8184.<\/li>\n
  12. Koken, M.<\/strong>, Aydin I., Sahin, A. (2017). “Application of computational fluid dynamics to predict hydrodynamics downpull on high head gates.”, Engineering Computations<\/em>, 34(4), p. 1191-1203.<\/li>\n
  13. Y\u0131lmaz, M., Yanmaz, M., Koken, M.<\/strong> (2017). “Clear-water scour evolution at dual bridge piers.”, Canadian Journal of Civil Engineering<\/em>, 44(4), p. 298-307.<\/li>\n
  14. Gogus, M., Altan-Sakarya A. B., Koken, M.<\/strong> (2016). “Experimental investigation of the anti-vortex devices of Beyhan I Dam Hydroelectric Power Plant intake structure.”, Procedia Engineering<\/em>, 161, p. 881-886.<\/li>\n
  15. Gogus, M., Altan-Sakarya A. B., Koken, M.<\/strong> (2016). “Experimental investigation of the original project of Yukar\u0131 Kalekoy Dam and Hydroelectric Power Plant Spillway.”, Procedia Engineering<\/em>, 161, p. 313-317.<\/li>\n
  16. Gogus, M., Koken, M., <\/strong>Baykara, A. (2016). “Formation of air-entraining vortices at horizontal intakes without approach flow induced circulation”, Journal of Hydrodynamics<\/em>, 28(1), p. 102-113.<\/li>\n
  17. Koken, M.,<\/strong>\u00a0Gogus, M.\u00a0(2015).\u00a0“Effect of spur dike length on the horseshoe vortex system and the bed shear stress distribution.”, Journal of Hyd. Res., <\/em>53(2), p.196-206.<\/li>\n
  18. Koken, M.,<\/strong> Constantinescu, S. G. (2014).\u00a0“Flow and turbulence structure around abutments with sloped sidewalls.”, Journal of Hydraulic Engineering, <\/em>140(7), p.1-13.<\/li>\n
  19. Koken, M.,<\/strong> Constantinescu, S. G., Blanckaert K. (2013).\u00a0“Hydrodynamic processes, sediment erosion mechanisms, and Reynolds-number-induced scale effects in an open channel bend of strong curvature with \ufb02at bathymetry.”, Journal of Geophysical Research: Earth Surface<\/em>, 118, p.2308-2324.<\/li>\n
  20. Koken, M. <\/strong>(2011).\u00a0 “Coherent structures around isolated spur dikes at various approach flow angles.”, Journal of Hydraulic Research<\/i>,\u00a0 49,\u00a0 p.736-743.<\/li>\n
  21. Constantinescu, S.\u00a0G., Koken, M.,<\/strong> Zeng, J. (2011).\u00a0 “The structure of turbulent flow in an open channel bend of strong curvature with deformed bed: Insight provided by detached eddy simulation simulation.”, Water Resources Research<\/i>,\u00a0 47,\u00a0 p.1-17.<\/li>\n
  22. Koken M.,<\/strong> Constantinescu, S.\u00a0G. (2011).\u00a0 “Flow and turbulence structure around a spur dike in a channel with a large scour hole.”, Water Resources Research<\/i>,\u00a0 47,\u00a0 p.1-19.<\/li>\n
  23. Koken, M.,<\/strong>\u00a0Constantinescu, S. G. (2009).\u00a0 “An investigation of the dynamics of the coherent structures in a turbulent channel flow with a vertical sidewall obstruction.”, Physics of Fluids<\/i>,\u00a0 21, p.085104\/1-16.<\/li>\n
  24. Koken, M.,<\/strong> and Constantinescu, S. G. (2008).\u00a0 “An investigation of the flow and scour mechanisms around isolated spur dikes in a shallow open channel. Part II. Conditions corresponding to the final stages of the erosion and deposition process.”, Water Resources Research<\/i>,\u00a0 44,\u00a0 p.1-16.<\/li>\n
  25. Koken, M.,<\/strong> and Constantinescu, S. G. (2008).\u00a0“An investigation of the flow and scour mechanisms around isolated spur dikes in a shallow open channel. Part I. Conditions corresponding to the initiation of the erosion and deposition process.”, Water Resources Research<\/i>,\u00a0 44, p.1-19.<\/li>\n<\/ol>\n

    International Conference Proceedings:<\/strong><\/p>\n

      \n
    1. Haspolat, E., Koken, M.<\/strong> (2024). “Effect of submergence ratio on flow characteristics of rigid vegetation array.” 8th IAHR Europe Congress, Lisbon, Portugal, June 2024.<\/li>\n
    2. Koken, M.<\/strong> and Constantinescu, G. (2022). \u201cEffects of patch height on sediment entrainment mechanisms around a rectangular patch of vegetation.\u201d International conference on fluvial hydraulics, River Flow 2020, Ottawa, Canada, 2022.<\/li>\n
    3. Koken, M.<\/strong>, Hesap, E., Bombar, G., El\u00e7i, \u015e., Cardoso, A. (2022). “Numerical investigation of flow around an isolated pier on an inclined surface.” 14th International Conference on Hydroscience and Engineering, \u0130zmir, May 2022.<\/li>\n
    4. Y\u0131ld\u0131z, B., Koken, M.<\/strong>, Gogus, M. (2019). “Investigation of Velocity field around bridge abutments.” International Conference on Innovation, Sustainability, Technology and Education in Civil Engineering, \u0130skenderun, June 2019.<\/li>\n
    5. K\u0131l\u0131n\u00e7, B. B., Aksen, M., Bahad\u0131ro\u011flu, N., Bombar, G., El\u00e7i, \u015e., Koken, M.<\/strong> (2018). “A numerical and experimental study on the flow field in an open channel.” 13th International Congress on Advances in Civil Engineering, ACE, \u00c7e\u015fme, \u0130zmir, September 2018.<\/li>\n
    6. Koken, M., Budak, E. (2018). “Coherent structures in a sharply curved bend with a spur dike at different configurations.” 8th International Symposium on Environmental Hydraulics, Notre Dame, Indiana, USA, June 2018.<\/li>\n
    7. Koken, M.,<\/strong> Budak, E. (2017). \u201cCoherent structures in a sharply curved bend with and without a spur dike.\u201d 37th IAHR World Congress, Kuala Lumpur, Malaysia, August 2017.<\/li>\n
    8. Koken, M.,<\/strong> Aydin, I., Haspolat, E., Sahin, A. N. (2017). \u201cExperimental and numerical investigation of piano key weirs.\u201d 37th IAHR World Congress, Kuala Lumpur, Malaysia, August 2017.<\/li>\n
    9. Budak, E., Koken, M.<\/strong> (2017). \u201cComparison between RANS and DES model in a Highly-Curved Channel with an Isolated Spur-Dike.\u201d, International Conference on Civil and Environmental Engineering, Cappadocia, May 2017.<\/li>\n
    10. Gogus, M., Koken, M.<\/strong>, Zaloglu, C., Haspolat, E. (2016). “Determination of critical submergence at horizontal water intakes under symmetrical flow conditions.”, 12th International Congress on Advances in Civil Engineering, Istanbul, September 2016.<\/li>\n
    11. Koken, M.<\/strong>, Constantinescu S. G. (2016). “On the spatial development of the mixing layer at the interface between open water and a region containing emerged vegetation.”, 8th International Conference on Fluvial Hydraulics, St. Louis, US, July 2016.<\/li>\n
    12. Gogus, M.,\u00a0Koken, M.,<\/strong>\u00a0Zaloglu, C., Haspolat, E.\u00a0(2015). “Determination of critical submergence depth at horizontal intakes under asymmetric flow conditions.”, 36th IAHR World Congress, Delft, Netherlands,\u00a0June 2015.<\/li>\n
    13. Selamoglu, M., Yanmaz, A. M., Koken, M.<\/strong> (2014). “Temporal variation of scouring topography around dual bridge piers.”, 7th. International Conference on Scour and Erosion, Perth, Western Australia, December 2014.<\/span><\/li>\n
    14. Constantinescu, S. G., Koken, M.<\/strong> (2014).\u00a0“Flow structure and large scale turbulence in an open channel bend of strong curvature with flat and deformed bed.”, 7th International Conference on Fluvial Hydraulics, Lausanne, Switzerland, September 2014.<\/span><\/li>\n
    15. Koken, M.<\/strong>, Gogus, M., Yilmaz, K.\u00a0(2014).\u00a0“Application of collars as scour countermeasure at various contraction ratios caused by two spill through abutments.”, 7th International Conference on Fluvial Hydraulics, Lausanne, Switzerland, September 2014.<\/span><\/li>\n
    16. Gogus, M., Altan-Sakarya, A. B., Aydin, I.,\u00a0Koken, M.,<\/strong> Yavuz, C., Dincer, A. E., Yilmaz, K.\u00a0(2014). “Experimental Investigation of Beyhan-I Dam and hydroelectric power plant water intake structure.”, 3rd. IAHR Europe Congress, Porto, April 2014.<\/span><\/li>\n
    17. Koken, M.,<\/strong> (2013). “A DES study of role of contraction ratio on the coherent structures caused by two spill through abutments.”,35th IAHR World Congress, Chengdu, China, September 2013.<\/li>\n
    18. Altan-Sakarya, A. B., Aydin, I., Gogus, M., Koken, M.<\/strong> (2013). “Experimental investigation of flow conditions over Cambasi Dam spillway.”,35th IAHR World Congress, Chengdu, China, September 2013.<\/li>\n
    19. Yildiz, B., Koken, M.,<\/strong> Gogus, M. (2013). “Temporal variation of scour hole around spill through bridge abutments at various contraction ratios.”, 35th IAHR World Congress, Chengdu, China, September 2013.<\/li>\n
    20. Aydin, I., Koken, M.,<\/strong> Aybar, A. (2013). “Experimental and computational investigation of vortex formation in a vertical intake structure.”, 35th IAHR World Congress, Chengdu, China, September 2013.<\/li>\n
    21. Gogus, M., Koken, M.,<\/strong> Yildiz B., (2012). “Effect of abutment length on scour pattern for abutments with curved toe.”, 10th International Congress on Advances in Civil Engineering, Ankara, October 2012.<\/span><\/li>\n
    22. Aydin, I., Koken, M.,<\/strong> Aybar A., (2012). “Hydraulic model and numerical study of vortex formation in head pond of adacami hydropower plant.”, 10th International Congress on Advances in Civil Engineering, Ankara, October 2012.<\/span><\/li>\n
    23. Gogus, M., Koken, M.,<\/strong> Baykara, A. (2012). “ <\/b>Critical submergence depth for vortex formation for horizontal intakes.”, 5th International Symposium on Fluid Machinery and Fluids Engineering, Jeju Korea, October 2012.<\/span><\/li>\n
    24. Aydin, I, Gogus, M., Koken M.,<\/strong> Sakarya, A. B., (2012). “Experimental and numerical investigation of flow conditions on Laleli Dam spillway.”, 2nd. IAHR Europe Congress, Munich, June 2012.<\/span><\/li>\n
    25. Constantinescu, S. G., Koken, M.,<\/strong> and Zeng, J. (2012). ” Flow and turbulence structure in shallow open channel bends.” 3rd. International Symposium on Shallow Flows, Iowa City, June 2012.<\/span><\/li>\n
    26. Koken, M.,<\/strong> Constantinescu, S. G. (2011). ” Effect of Reynolds number and abutment geometry on the flow and turbulence structure around an abutment with large scour hole.” 34th IAHR Congress, Brisbane, Australia, June 2011.<\/span><\/li>\n
    27. Koken, M.,<\/strong> Constantinescu, S. G. (2010). ” An investigation of scale effects in the flow past a vertical wall abutment.” International Conference on Fluvial Hydraulics, Braunschweig, Germany, September 2010.<\/span><\/li>\n
    28. Constantinescu, S. G., Koken, M.,<\/strong> and Zeng, J. (2010). ” Simulation of flow in an open channel bend of strong curvature using Detached Eddy Simulation.” International Conference on Fluvial Hydraulics, Braunschweig, Germany, September 2010.<\/span><\/li>\n
    29. Koken, M.,<\/strong> Gogus, M. (2010). ” Effect of Abutment Length on the Bed Shear Stress and the Horseshoe Vortex System.” International Conference on Fluvial Hydraulics, Braunschweig, Germany, September 2010.<\/span><\/li>\n
    30. Koken, M.,<\/strong> Gogus, M. (2010). ” Time Evolution of the Horseshoe Vortex System Forming Around a Bridge Abutment.”5th. International Conference on Scour and Erosion, San Francisco, USA, November 2010.<\/span><\/li>\n
    31. Koken, M.,<\/strong> Constantinescu, S. G. (2009). ” A DES Study of the Role of Large-Scale Turbulence at a Bridge Abutment of Realistic Geometry with Scour Hole.” 33rd IAHR Congress, Vancouver, Canada, August 2009.<\/span><\/li>\n
    32. Koken, M.,<\/strong> Constantinescu, S. G. (2008). ” A Detached Eddy Simulation Study of the Horseshoe Vortex System in the Flow Past a Bridge Abutment with a Scour Hole at a High Reynolds Number.” Japanese Geotechnical Society, 4th International Conference on Scour and Erosion, Tokyo, November 2008.<\/span><\/li>\n
    33. Koken, M.,<\/strong> Constantinescu S. G. (2008). ” A Numerical Study on Scale Effects in the Flow Past a Vertical Spur Dike.” International Conference on Fluvial Hydraulics, Cesme, Turkey, September 2008.<\/span><\/li>\n
    34. Constantinescu S.G., Koken, M.,<\/strong> and McCoy, A. (2007). “A large eddy simulation study of the bed shear stress distributions around isolated and multiple groins.” 5th<\/sup> IAHR Symposium on River, Costal and Estuarine Morphodynamics, The University of\u00a0 Twente, Netherlands, September 2007.<\/span><\/li>\n
    35. McCoy, A., Constantinescu, S. G. Koken, M.,<\/strong> and Weber, L. (2007). “Effect of relative submergence on the flow and mass exchange processes in a channel with two lateral groins. ” 32nd International Association Hydraulic Engineering & Research Congress, Venice, Italy, July 2007.<\/span><\/li>\n
    36. Koken, M.,<\/strong> Kirkil, G., and Constantinescu S. G. (2007). “Coherent structures in the flow around a bridge abutment and a bridge pier at equilibrium scour conditions. ” 32nd International Association Hydraulic Engineering & Research Congress, Venice, Italy, July 2007.<\/span><\/li>\n
    37. Koken, M.,<\/strong> Constantinescu S. G. (2007). “An investigation of coherent structures in the wake of a bridge abutment at equilibrium bed scour conditions.” World Environmental and Water Resources Congress, Tampa, Florida, May 2007. pp.1-10.<\/span><\/li>\n
    38. Koken<\/span><\/a>, M.,<\/strong> Constantinescu S. G. (2006). “LES investigation of horseshoe vortex system at the base of a bridge abutment at equilibrium bed scour conditions.” 7th<\/sup> International Conference on Hydroinformatics (HIC-2006), Nice, France, September 2006.<\/span><\/li>\n
    39. Koken, M.,<\/strong> Constantinescu S. G. (2006). “Investigation of flow around a bridge abutment in a flat bed channel using large eddy simulation.” 2006 World Environmental and Water Resources Congress, Omaha, Nebraska, May 2006. <\/span><\/li>\n
    40. Haque, M.D., Koken, M.,<\/strong> Constantinescu, S.G., and Weber, L. (2005). “Use of a 3D RANS model to predict stratification effects related to fish passage at hydropower dams.”<\/span> XXXIst<\/sup> International Association Hydraulic Research Congress, Seoul, Korea, September 2005.<\/span><\/li>\n
    41. Constantinescu, S.G. and Koken, M.<\/strong> (2005). “Time-dependent and time-averaged structure of the flow past a surface mounted cylinder.”<\/span> 4th<\/sup> International Conference on Computational Heat and Mass Transfer, Cachan, France, May 2005.<\/span><\/li>\n
    42. Constantinescu, G.C., Ettema, R., Koken, M.,<\/strong> and Muste, M. (2004). “LES simulation of unsteady horseshoe vortex system and wake vortices generated by surface mounted cylinders.”<\/span> Second International Conference on Scour and Erosion, Singapore, November 14-17, 2004.<\/span><\/li>\n<\/ol>\n

      National Conference Proceedings:<\/strong><\/p>\n

        \n
      1. Koken M.<\/strong> (2015). “K\u00f6pr\u00fc yan ayaklar\u0131n\u0131n olu\u015fturdu\u011fu daralman\u0131n atnal\u0131 vorteks sistemi ve oyulmaya etkisinin DES modellemesi ile incelenmesi.”4. Su Yap\u0131lar\u0131 Sempozyumu, Antalya, November 2015.<\/li>\n
      2. Gogus, M., Altan-Sakarya, A. B.,\u00a0Koken, M.,<\/strong> Yavuz, C., Dincer, A. E., Haspolat, E.\u00a0(2015). “Yukar\u0131 Kalek\u00f6y Baraj\u0131 ve HES\u00a0dolusavak hidrolik model deneyleri.” 4. Su Yap\u0131lar\u0131 Sempozyumu, Antalya, November 2015.<\/li>\n
      3. Gogus, M., Altan-Sakarya, A. B., Aydin, I.,\u00a0Koken, M.,<\/strong> Yavuz, C., Dincer, A. E., Yilmaz, K.\u00a0(2014). “Beyhan-I Baraj\u0131 ve Hidroelektrik Santrali su alma yap\u0131s\u0131n\u0131n deneysel ara\u015ft\u0131r\u0131lmas\u0131.”, DS\u0130 2. Barajlar Kongresi, \u0130stanbul,\u00a0February 2014.<\/li>\n
      4. Yildiz, B., Koken, M.,<\/strong> Gogus, M. (2013). “Farkl\u0131 daralma oranlar\u0131nda d\u00f6kme duvar tipi k\u00f6pr\u00fc kenar ayaklar\u0131 etraf\u0131nda olu\u015fan oyulmay\u0131n zamanla de\u011fi\u015fimi.”, 3. Su Yap\u0131lar\u0131 Sempozyumu, Ankara, December 2013.<\/li>\n
      5. Koken, M.,<\/strong> Gogus, M. (2011). ” K\u00f6pr\u00fc yan aya\u011f\u0131 uzunlu\u011funun atnal\u0131 \u00e7evrinti sistemine etkisi.” 5. Ulusal Su M\u00fchendisli\u011fi Sempozyumu, \u0130stanbul, September 2011.<\/span><\/li>\n<\/ol>\n

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        International Journal Publications: Haspolat, E., Koken, M. (2025). “Drag on Sparse and Rigid Emergent Canopies: Experimental and Numerical Investigation.” Journal of Hydraulic Engineering, 151(6), pp. 1-15. Koken, M., Cotel, E. B. (2025). “Numerical investigation of the coherent structures in a curved channel with a spur dike at different angles with… Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":1319,"featured_media":0,"parent":0,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-6","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blog.metu.edu.tr\/mkoken\/wp-json\/wp\/v2\/pages\/6","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.metu.edu.tr\/mkoken\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blog.metu.edu.tr\/mkoken\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blog.metu.edu.tr\/mkoken\/wp-json\/wp\/v2\/users\/1319"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.metu.edu.tr\/mkoken\/wp-json\/wp\/v2\/comments?post=6"}],"version-history":[{"count":0,"href":"https:\/\/blog.metu.edu.tr\/mkoken\/wp-json\/wp\/v2\/pages\/6\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.metu.edu.tr\/mkoken\/wp-json\/wp\/v2\/media?parent=6"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}