Deniz Gedikli

Assistant Professor

Please visit our research group’s webpage (FSI Research Group) for more information about our current efforts and available positions.

Research Interests

Naval Architecture, Offshore marine structures, Experimental hydrodynamics and fluid-structure interactions, Structural dynamics, Dynamical systems and development of multivariate analysis methods, Data science and nonlinear time series analysis, Machine learning , Arctic Engineering

Professional Preparation

  • PhD in Ocean Engineering (2017), University of Rhode Island
  • MSc in Ocean Engineering (2014), University of Rhode Island
  • BSc in Naval Architecture and Marine Engineering (2009)

Experience

  • Assistant Professor (2020-Present), Department of Ocean and Resources Engineering, University of Hawaii at Manoa
  • Postdoctoral Scholar (2017-2019), Department of Civil and Environmental Engineering, Norwegian University of Science and Technology (NTNU)

Courses Taught

  • ORE 609: Hydrodynamics of fluid-body interaction
  • ORE 612: Dynamics of Ocean Structures
  • ORE 792: Seminar in Ocean and Resources Engineering
  • ORE 677: Marine Renewable Energy

Services

  • Professional Societies: ASME, SNAME, APS, SEM, ISOPE
  • Reviewer for: Journal of Marine Structures(4), Journal of Fluids and Structures(4), Journal of Cold Regions Science and Technology(2), Mechanical Systems and Signal Processing(4), ISOPE(6), Inter- national Journal of Offshore and Polar Engineering(4), Ocean Engineering(1), Sensors(1), Journal of Marine Science and Engineering(1), Coatings(1), INT-NAM(3), POAC(2)
  • Session chair at conferences: ISOPE (2018), INT-NAM (2018)
    Technical Committee Member (TPC): ISOPE.
    Media appearance: “Going with the flow”, Rhode Island EPSCoR

Publications

  1. Li, H., E.D. Gedikli, R. Lubbad (2021). Laboratory study of wave-induced flexural motion of ice floes. Journal of Cold Regions Science and Technology : https://doi.org/10.1016/j.coldregions.2020.103208
  2. Li, H., E.D. Gedikli, R. Lubbad (2020).  Exploring time-delay-based numerical differentiation using principal component analysis, Physica A: Statistical Mechanics and its Applications : https://doi.org/10.1016/j.physa.2020.124839
  3. Gedikli, E.D., D. Chelidze and J. Dahl (2020). Empirical mode analysis identifying hysteresis in vortex-induced vibrations of a bending-dominated flexible cylinder, Int. J. of Offshore and Polar Eng.: https://www.onepetro.org/journal-paper/ISOPE-20-30-2-186
  4. Li H., E.D. Gedikli, R. Lubbad, TS Nord  (2020). Laboratory study of wave-induced ice-ice collisions using robust principal component analysis and sensor fusion, Cold Reg. Sci. and Tech. : https://doi.org/10.1016/j.coldregions.2020.103010
  5. Aktosun, E., E.D. Gedikli, J.M. Dahl (2020). Wake observations for a circular cylinder undergoing forced two-degrees-of-freedom motions. APS Division of Fluid Dynamics, Online Click
  6. Li. H., E.D. Gedikli, R. Lubbad (2020).  Systematic investigation of data analysis methods in wave-ice interaction problem. 25th IAHR International Symposium on Ice, Trondheim, Norway Click
  7. Gedikli, E.D., M. Bjerkås, K.V. Hoyland, V. Hornnes, J. Turner (2020). On the ice and wind conditions in the northern part of the Gulf of Bothnia leading ice-induced vibrations. 25th IAHR International Symposium on Ice, Trondheim, Norway Click
  8. Hornnes, V., K.V. Hoyland, J. Turner, E.D. Gedikli, M. Bjerkås (2020). Combined distribution of ice thickness and speed based on local measurements at the Norströmsgrund lighthouse 2000-2003. 25th IAHR International Symposium on Ice, Trondheim, Norway Click
  9. Turner, J., K.V. Hoyland, V. Hornnes, E.D. Gedikli (2020). Comparison of in-situ measurements from the Norströmsgrund lighthouse to Copernicus reanalysis products. 25th IAHR International Symposium on Ice, Trondheim, Norway Click
  10. On pressure modes in ice- induced vibrations using multivariate analysis. https://doi.org/10.1016/j.coldregions.2019.02.003
  11. Observed mode shape effects on the vortex-induced vibration of bending dominated flexible cylinders simply supported at both ends, Journal of Fluids and Structures: https://doi.org/10.1016/j.jfluidstructs.2018.05.010
  12. Mode excitation hysteresis of a flexible cylinder undergoing vortex-induced vibrations, Journal of Fluids and Structures: https://doi.org/10.1016/j.jfluidstructs.2017.01.006
  13. Multivariate analysis of vortex-induced vibrations in a tensioned cylinder reveal nonlinear modal interactions: Paper
  14. Li, H., E. D. Gedikli, R. Lubbad (2019). Identifying flexural-mode shapes of ice-floes under wave actions using multivariate analysis. Proceedings of the 25th International Conference on Port and Ocean Engineering under Arctic Conditions. Delft, The Netherlands: Paper
  15. Bjerkås, M., E.D. Gedikli (2019). A method to find intervals with probability of harsh ice-induced vibrations. Proceedings of the 25th International Conference on Port and Ocean Engineering under Arctic Conditions. Delft, The Netherlands: Paper
  16. Gedikli, E.D., D. Chelidze, J.M. Dahl (2019). Active control of flexible cylinders undergoing vortex-induced vibrations using piezo stripe actuators. Structural Health Monitoring, Photogrammetry & DIC, Volume 6, 63-65: Paper
  17. Gedikli E.D., T. Nord (2019). Insights on the pressure distributions of controlled ice-induced vibration experiments. APS 2019, C48.005: Abstract
  18. Gedikli, E.D., D. Chelidze, J.M. Dahl (2018). Bending dominated flexible cylinder experiments reveal insights into modal interactions for flexible body vortex-induced vibrations, The 28th International Ocean and Polar Engineering Conference, Sapporo, Japan: Paper
  19. Dahl, J.M., E.D. Gedikli (2017). Active control of flow-induced vibrations of a cylinder using piezo actuators. APS DFD, E16.002: Abstract

Technical Presentations

T-23. [2020] APS DFD, Chicago.
Title: Wake observations for a circular cylinder undergoing forced two-degrees-of-freedom motions.

T-22. [2020] AGU Fall Meeting.
Title: Experimental investigation of wave-induced bending response of ice floes.

T-21. [2020] IAHR 25 th International Symposium on Ice (Trondheim, Norway) [Presenter].
Title: Insights on the Ocean Environment Leading Ice Induced Vibrations of Offshore Marine Structures.

T-20. [2020] IAHR 25 th International Symposium on Ice (Trondheim, Norway) [Co-author].
Title: Comparison of in-situ measurements from the Norstromsgrund lighthouse to Copernicus re- analysis products.

T-19. [2020] IAHR 25 th International Symposium on Ice (Trondheim, Norway) [Co-author].
Title: Combined distribution of ice thickness and velocity based on local measurements at the Norstr ̈omsgrund lighthouse 2000-2003.

T-18. [2020] IAHR 25 th International Symposium on Ice (Trondheim, Norway) [Co-author]. Title: Systematic investigation of data analysis methods in wave-ice interaction problem.

T-17. [2019] POAC – 25th International Conference on Port and Ocean Engineering under Arctic Condi- tions (Delft, The Netherlands) [Presenter].
Title: A method to find intervals with probability of harsh ice induced vibrations.

T-16. [2019] POAC – 25th International Conference on Port and Ocean Engineering under Arctic Condi- tions (Delft, The Netherlands) [Co-author].
Title: Identifying flexural-mode shapes of ice floes under wave actions using multivariate analysis techniques.

T-15. [2019] APS – American Physical Society March Meeting (Boston, MA), Division of Fluid Dynamics – Session on Fluid-structure Interactions [Presenter].
Title: Insights on pressure modes of controlled ice-induced vibration experiments.

T-14. [2018] ISOPE (Sapporo, Japan) [Presenter & Discussant].
Title: Bending dominated flexible cylinder experiments reveal insights into modal interaction for flexible body vortex-induced vibrations.

T-13. [2018]3rdInternationalSymposiumonNavalArchitectureandMaritime(Istanbul,Turkey)[Presenter & Discussant].

Title: A novel method for manipulating flexible cylinder vortex-induced vibrations.

T-12. [2018]3rdInternationalSymposiumonNavalArchitectureandMaritime(Istanbul,Turkey)[Presenter & Discussant].

Title: Discovering pressure modes in ice-induced vibrations using proper-orthogonal decomposition.

T-11. [2017] APS – 70th Annual Meeting of the APS Division of Fluid Dynamics, (Denver, Colorado). Title:Active control of flow-induced vibrations of a cylinder using piezo actuators.

T-10. [2017] IMAC 35 – A Conference and Exposition on Structural Dynamics, Structural Dynamics chal- lenges in next generation aerospace systems. Track: Nonlinear Systems. (California). Title:Nonlinear Modes in Flexible Cylinders Subject to Vortex-Induced Vibration.

T-9. [2017] 10th International Conference on Structural Dynamics (Rome, Italy).
Title: Multivariate analysis of vortex-induced vibrations in a tensioned cylinder reveal nonlinear modal interactions.

T-8. [2016] APS Conference for Undergraduate Women in Physics (Wesleyan Uni., Middletown, CT). Title: 3D flow visualization of the wake of a flexible cylinder undergoing VIVs using digital particle image velocimetry. [Best Presentation Award]

T-7. [2016] The Eleventh ONR/MTS Buoy Workshop (Woods Hole Oceanographic Institution, MA). Title: Non-linear Effects on the Modal Excitation of Flexible Cables Undergoing Vortex-Induced Vibrations.

T-6. [2016] 8th International Colloquium in Bluff Body Aerodynamics and Applications (Boston,MA)[Presenter]. Title: Comparison of Structural Mode Effects on Bending and Tension Dominated Flexible Cylinders
in VIV.

T-5. [2015]APS-68th Annual Meeting of the APS Division of Fluid Dynamics, 60, (Boston,MA) [Presenter]. Title: Hysteretic memory and end plate effects on the response of a flexible cylinder undergoing vortex-induced vibrations.

T-4. [2015] APS – 68th Annual Meeting of the APS Division of Fluid Dynamics, 60, (Boston, MA). Title: Three-dimensional flow visualization of a flexible cylinder wake subject to VIV.

T-3. [2015] 54th Annual Northeast Algal Symposium (Syracuse, NY)[Joint project with Biology Dep]. Title: Hole-Y Ulva! Examining the role of holes in species of bloom-forming macroalgae.

T-2. [2014] OMAE – 33rd International Conference on Ocean, Offshore and Arctic Engineering [San Francisco]. Title: Mode Shape Variation for a Low-Mode Number Flexible Cylinder Subject to Vortex-Induced Vibrations.

T-1. [2013] APS – 66th Annual Meeting of the APS Division of Fluid Dynamics, 58 (Pittsburgh, PA) [Presenter]. Title: Investigation of modal excitation of a flexible cylinder on vortex induced vibrations.