Journal papers

2026

• Sejin Jung,, Heebum Lee, In Sung Jang, Seong Min Moon, Heungchan Kim, Chang Hyeon Seo, Jihoon Kim*, and Jin Hwan Ko*. "Investigation on Wake Characteristics of Two Tidal Stream Turbines in Tandem Using a Mobile Submerged PIV System" Marine Science and Engineering 14, no. 2: 135, Jan 2026. 

• Sang Chul Lee, Dasom Jeong, and Jin Hwan Ko*. " Study on Performance Improvement of a Flapping-foil Hydrokinetic Turbine of Parallel Configuration "Ocean and Polar Research 48, 1-11, Jan 2026.

2025

• Sejin Jung, Heebum Lee, Dasom Jeong, Jihoon Kim, and Jin Hwan Ko*. "Study on the Wake Characterization of a Horizontal-Axis Tidal Stream Turbine Utilizing a PIV System in a Large Circulating Water Tunnel ,"Energies, Vol. 18, no. 7, Apr 2025.

• Dasom Jeong, and Jin Hwan Ko*. "A Performance Analysis of a Flapping-Foil Hydrokinetic Turbine Mimicking a Four-Limb Swimming Creature ,"Marine Science and Engineering, Vol. 13, no. 10, Sep 2025.

2024

• Dasom Jeong, Jin-Soon Park, and Jin Hwan Ko*. "Performance Improvement of a Darrieus Hydrokinetic Turbine by Interaction and Diffusion Effects ,"Ocean and Polar Research, Vol. 46, Mar 2024.

• Jihoon Kim, Sejin Jung, Muhea Jung, Sangkyu Choi, Dasom Jeong, and Jin Hwan Ko*. "Offshore ExperimentalWork of a Pump Directly Driven by a Fully Passive Dual-Flapping-Foil Hydrokinetic Turbine ,"Marine Science and Engineering, Vol. 12, no.10, Oct 2024.

• Dong-Geon Kim, Jihoon Kim, and Jin Hwan Ko*. "An experimental investigation of the performance of a power transmission mechanism for a flapping-foil hydrokinetic turbine ,"Renewable Energy, Vol. 237, Dec 2024.

• Dong-Geon Kim, Jihoon Kim, Sejin Jung, and Jin Hwan Ko*. "Experimental Investigation of the Yaw Misalignment Effect on the Power Performance and System Loading of a Flapping‐Foil Hydrokinetic Turbine ,"Energy Science & Engineering, Vol. 10, no. 20, Dec 2024.

2023

• Dasom Jeong, Hai Nguyen Le Dang, and Jin Hwan Ko*. "Investigatin of Phase Difference and Separation Distance Effects in the Design of a Dual Flapping Hydrofoil Turbine,"Energy Scinece & Engineering, May 2023.

• Jihoon Kim, Dong-Geon Kim, Sejin Jung, Seong Min Moon, and Jin Hwan Ko*. "Experimental Study of a Fully Passive Flapping Hydrofoil Turbine with a Dual Configuration and a Coupling Mechanism ,"Renewable Energy, Vol. 208, May 2023.

2022

• Hai Nguyen Le Dang, Dasom Jeong, and Jin Hwan Ko*. "Study of the Power Performacne of a Variable-camber Hydrofoil Used in a Flapping Tidal Stream Turbine ,"Journal of Marine Science and Technology, Vol. 27, July 2022.

• Hai Nguyen Le Dang, Tuyen Quang Le, Dasom Jeong, and Jin Hwan Ko*. "Camber Effect on the Stability and Power Performance of a Right-swing Hydrofoil Turbine ,"International Journal of Naval Architecture and Ocean Engineering, Vol. 14, June 2022.

• Eun Cheol Im, Jin Hwan Ko*. "Experimental Study on an Underwater Pole Climb Robot for the Maintenance of Offshore Wind Turbine Substructures ,"Journal of Korea Robotics Society, Vol. 17, No. 2, Mar 2022.

2021

• Dong Geon Kim, Jin Hwan Ko*. "An experimental study on self-starting properties of H-Darrieus turbines ,"Journal of Wind Energy, Vol. 12, No. 2, Jun 2021.

• Nguyen Le Dang Hai, Hoon Cheol Park, and Jin Hwan Ko*. "Dynamic response estimation for a variable camber NACA0012 hydrofoil of a flapping-type tidal stream turbine," Journal of Marine Science and Technology Vol. 26, No. 1, Mar 2021.

2020

• Da Som Jeong, Jin Hwan Ko*. "Study on load reduction of a tidal steam turbine using a flapped blade ,"Ocean and Polar Research, Vol. 42, No. 4, Sep 2020.

• Sejin Jung, Ryungeun Song, Jihoon Kim and Jin Hwan Ko, and Jinkee Lee, "Controlling the Release of Amphiphilic Liposomes from Alginate Hydrogel Particles for Antifouling Paint," Langmuir, Vol. 36, No. 6, Jan 2020.

2019

• Jaebum Kim, O Soon Kwon, Nguyen Le Dang Hai, and Jin Hwan Ko*. "Study on the Design of an Underwater Chain Trencher via a Genetic Algorithm",Journal of Marine Science and Engineering , Vol. 7, No. 12, Dec 2019.

• Jihoon Kim, Jin-Soon Park, and Jin Hwan Ko*, "Experimental Study on Interaction Effect of Darrieus Tidal Stream Turbines," Ocean and Polar Research, Vol. 41, No. 3, Sep 2019.

• Patar EbenezerSitorus,Jin Hwan Ko*, "Power extraction performance of three types of flapping hydrofoils at a Reynolds number of 1.7E6," Renewable Energy, Vol. 132, Mar 2019.

• Jin Hwan Ko*, Patar Ebenezer Sitorus, and Jihoon Kim ," Effect of Variable Shape Blade on the Performance of Darrieus Turbine," The Korean Society for Marine Environment & Energy, Vol. 22, No. 1, Feb 2019.

• Patar EbenezerSitorus, Jin–SoonPark, and Jin Hwan Ko*, " Hydrodynamic characteristics of cambered NACA0012 for flexiblewing application of a flapping-type tidal stream energy harvesting system," International Journal of Naval Architecture and Ocean Engineering, Vol. 11, No. 1, Jan 2019.

2018

• Baekhoon Seong, Jihoon Kim, Sejin Jung, Giho Kang, Jinkee Lee, Doyoung Byun, Kwang-Soo Lee, Hyung-Seok Jang, and Jin Hwan Ko*. "Shaping characteristics in alginate hydrogel encapsulation via a two-fluid spraying method, "Journal of Coatings Technology and Research, Vol. 15, Sep 2018.

2017

• Jin Hwan Ko*,and Jihoon Kim, "Experimental Study on Power Improvement of a Flapping Tidal Stream Turbine by Mimicking a Manta-Ray , ",Ocean and Polar Research, Vol. 39, No. 4, Dec 2017.

• Quang Duy Nguyen, Hoon Cheol Park, Taesam Kang, and Jin Hwan Ko, and Jinkee Lee, " Structural design and analysis of composite blade for horizontal-axis tidal turbine," Science and Engineering of Composite Materials, Vol. 25,No.6, Nov 2017.

Proceedings

• Soochan Han, Dong-gun Kim, Jin Hwan Ko*, "Swimming Performance and Pose Estimation of a Biomimetic Robotic Fish," KRoC, Feb 2025

• Juhye Lee, Dasom Jeong, Jin Hwan Ko*, "Design and Experimental Evaluation of a Bionmimetic Water Jet Propulsion System," KRoC, Feb 2025

• Dasom Jeong, Dong Geon Kim, and Jin Hwan Ko*, "Power and load analysis of a flapping-foil hydrokinetic turbine inspired by a four-limb swimming creature," APS, Nov 2023.

• Jin Hwan Ko*, Dong Geon Kim, Dasom Jeong, Heungchan Kim, Jihoon Kim, Sejin Jung, and Chang Hyeon Seo, "Experimental study on a flapping-foil hydrokinetic turbine with a fully passive activating mechanism and crank-rocker power transmission," APS, Nov 2023.

• Dong Geon Kim, Da Som Jeong, Ju Hye Lee, and Jin Hwan Ko*, "New hydrokinetic turbine technology using oscillation blade," KAOSTS, May 2023.

• Dong Geon Kim, Jin Hwan Ko*, "Experimental investigaition on fully passive activation of a dual flapping-foil turbine with a coupling mechanism," AFORE, Sep 2022.

• Da Som Jeong, Jin Hwan Ko*, "Numerical parametric analyses for the design of a turtle-mimicking tidal stream turbine," AFORE, Sep 2022.

• Hai Nguyen Le Dang, Jin Hwan Ko*, and Dasom Jeong, "Numerical study on Performance Analysis of a Variable Camber Hydrofoil used in a Flapping hydrofoil turbine," AFORE-014, Nov 2021.

• Eun Cheol Im, and Jin Hwan Ko*, "Experimental Study on a Mobility Platform of a Underwater Pole-Climbing Robot for Offshore Wind Turbine Substructures," ICCAS, Oct 2021.

• Da Som Jeong, Dong Geon Kim, and Jin Hwan Ko* "Application of BEMT for the Design of a Flapped Tidal Stream Turbine Blade," KSCFE, Oct 2020.

• Jin Hwan Ko*, Nguyen Le Dang Hai, and Jihoon Kim "Introduction of Studies on a Flapping Hydrofoil Tidal Stream Turbine in Korea," AFORE, Nov 2019.

• Da Som Jeong, Jin Hwan Ko**, "A Study on Load Reduction of Tidal Turbine Blade," AFORE, Nov 2019.

• Nguyen Le Dang Hai, J.Kim, O S Kwon, and Jin Hwan Ko*, "Study on the Design of Underwater Chain Trencher,"KSFC, 2019.

• Patar Ebenezer Sitorus, Boreum Won, and Jin Hwan Ko*, " Numerical Study on Power Balance of Front and Rear Hydrofoils in Dual Configuration of a Flapping- Type Tidal Energy Harvester,"The 27th International Ocean and Polar Engineering Conference, 2017.

• Jihoon Kim, Hyeju Park, Jin Hwan Ko*, Bo Reum Won, Patar Ebenezer Sitorus, Jin-Soon Park, and Kwang-Soo Lee, "Development of a Pitch Controller via Multiple-step Experiments of Scale Models of a Horizontal Axis Tidal Current Turbine,"The 27th International Ocean and Polar Engineering Conference, 2017.

Patents

• Jeju National University Research and Business Development Foundation, Jin Hwan Ko*, "A Underwater Flapping Thruster with Self-Generating Function" KR Patent No.10-2021-0189035, filed Dec.27.2021.

• Jeju National University Research and Business Development Foundation, Jin Hwan Ko*, "A Turtle-Mimicking Tidal Stream Turbine"KR Patent No.10-2020-0157563, filed Nov.23.2020 and issued Dec, 29, 2021.

• Jeju National University Research and Business Development Foundation, Jin Hwan Ko*, "A Sea Fog Generating Apparatus Based on Ocean Renewable Plants For Dust Reduction"KR Patent No.10-2019-0037671, filed Apr.1.2019 and issued Jan, 27, 2021.