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On-going research areas:

Fluid dynamics

• ocean surface gravity waves;
• wave-current interaction;
• wave-bathymetry interaction;
• wave statistics;
• wave-turbulence interaction;

Oceanography

• Ocean wave modeling;
• Ocean circulation;
• wave-driven flows;

Offshore engineering

• Sea loads;
• Met-ocean; 
• Offshore wind (hydrodynamics); 

Honors (selected):

• Prize to outstanding young researchers (Ph.D. level) from the   ;
•  ;

Projects (finished)

• "Water wave modulation and wave forces with sheared currents" funded by the . Click for the project description and updates. 
• Experimental study on the evolution of a narrow-banded wavepacket propagating over a step (UK & China Center for Offshore Renewable Energy Flexible Funding / UK EPSRC- NERC) 

Job advertisement:  , expected starting date in August/September 2024. 

University of Bergen/Faculty of mathematics and natural science/News:  

Supervision: 

Ph.D. candidates: 

• 2021-2026, Zirui Xin (Shanghai Jiao Tong University, SJTU), together with Prof. Xin Li, Topic: coupled effects of wave-current interaction on offshore bottom-fixed and floating wind turbines. 
• 2021-2026, Jianhong Zhang (SJTU), together with Prof. Wenyue Lu, Topic: Evolution of directional-spreading steep wave groups in deep water
• 2019-2023, Zibo Zheng (NTNU), together with Prof. Simen Ellingsen, Topic: Wave statistics in a vertically sheared current. 

Master students: 

• 2024-2025 Victor Heldal Stien, Optimization of dynamic cable layouts for floating offshore wind farms, (ºÚÁϳԹÏ×ÊÔ´, completed).  
• 2023-2024 Sindre Lund LomÃ¥s (ºÚÁϳԹÏ×ÊÔ´)
• 2022-2023 Liangfu Wu (SJTU), Topic: the numerical study of the nonlinear evolution of wave spectrum in a background current.  

Lecturer: 

: Fluid Mechanics (Post-graduate level) 

: Functions of a Complex Variable 

2024

• Li, Yan; Chabchoub, Amin (2024). How currents trigger extreme sea waves. The roles of Stokes drift, Eulerian return flow, and a background flow in the open ocean. Geophysical Research Letters. (In production)
• Ellingsen, S.Ã….; Zheng, Z; Abid, M; Kharif, C; Li, Yan (2024). Dispersive Wave Focusing on a Shear Current: Part 1—Linear Approximations. Water Waves. 

2023

• Li, Yan (2023). On coupled envelope evolution equations in the Hamiltonian theory of nonlinear surface gravity waves. Journal of Fluid Mechanics, Vol. 960, A33. . 
• Li, Yan; Chabchoub, Amin (2023). On the formation of coastal rogue waves in water of variable depth. Cambridge Prisms: Coastal Futures 2023 ; Vol. 1.(e33). .
• Zheng, Zibo; Li, Yan;  Ellingsen, Simen Andreas Ã…dnøy (2023). Statistics of weakly nonlinear waves on currents with strong vertical shear. Physical Review Fluids. 8, 014801. DOI:.
• Tang, Tianning; Moss, Charlotte; Draycott, Samuel; Bingham, Harry B.; Van Den Bremer, Ton S.; Li, Yan; Adcock, Thomas A.A.(2023).The influence of directional spreading on rogue waves triggered by abrupt depth transitions. Journal of Fluid Mechanics (Rapids); Vol. 972.  
• Xin, Zirui; Li, Xin; Li, Yan (2023). Coupled effects of wave and current interaction on loads on a bottom-fixed vertical slender cylinder.  Coastal Engineering. 183. 104304.
• Li, Yan; Xin, Zirui; Li, Xin (2023). Exponential integrator for nonlinear surface gravity-capillary waves. Submitted to OMAE-2023 (in press) 

2022

• Li, Zhenhao; Tang, Tianning; Li, Yan; Draycott, Samuel; van den Bremer, Ton S.; Adcock, Thomas A. A. (2022). . Journal of Ocean Engineering and Marine Energy. 1-9.
• Draycott, Samuel; Li, Yan; Stansby, Peter; Adcock, Thomas A.A.; van den Bremer, Ton S.. (2022)   vol. 171.

2021

• Li, Yan. (2021)   vol. 926.
• Li, Yan; Draycott, Samuel; Adcock, Thomas A.A.; van den Bremer, Ton S.. (2021)   vol. 915.
• Li, Yan; Draycott, Samuel; Zheng, Yaokun; Lin, Zhiliang; Adcock, Thomas A. A.; van den Bremer, Ton S.. (2021)   vol. 919 (R5).
• Li, Yan; Li, Xin. (2021)   vol. 33 (7).
• Li, Yan; Zheng, Yaokun; Lin, Zhiliang; Adcock, Thomas A.A.; van den Bremer, Ton S.. (2021)   vol. 915.

2020

• Yaokun, zheng; Zhiliang, Lin; Li, Yan; Adcock, Thomas A. A.; Li, Ye; van den Bremer, Ton S.. (2020)   vol. 5 (6).

2019

• Li, Yan; Ellingsen, Simen Andreas Ã…dnøy. (2019)   vol. 124 (4).
• Li, Yan; Smeltzer, Benjamin Keeler; Ellingsen, Simen Andreas Ã…dnøy. (2019)   vol. 73.
• Li, Yan; Adcock, Thomas A.A.; van den Bremer, Ton S.. (2019) Linear Evolution of a Narrow-Banded Surface Gravity Wavepacket Over an Infinite Step. ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2019): Volume 4: Materials Technology.

2018

• Li, Yan. (2018)   vol. 62 (1).
• Li, Yan; Ellingsen, Simen Andreas Ã…dnøy. (2018)  ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering - Volume 7B: Ocean Engineering.

2017

• Ellingsen, Simen Andreas Ã…dnøy; Li, Yan. (2017)   vol. 122 (12).
• Smeltzer, Benjamin Keeler; Li, Yan; Ellingsen, Simen Andreas Ã…dnøy. (2017)  ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Volume 7B: Ocean Engineering.

Doctoral Thesis

• Li, Yan. (2017) Surface water waves on depth dependent flows. 2017. ISBN 978-82-326-2461-4.

Paper(s) in Conference proceedings:

• Smeltzer, B.K., Li, Yan, Ellingsen, S.Ã…, , in Proceedings of the 36th International Conference on Ocean, Offshore and Arctic Engineering (OMAE) , June 25-30, 2017, Trondheim, Norway. Paper OMAE2017-61231.

2016

• Li, Yan, Ellingsen, S.Ã…, , Journal of Fluid Mechanics , 808 668-689 (2016).
• Li, Yan, Ellingsen, S.Ã…, , Journal of Fluid Mechanics , 791 232-255 (2016). of J. Fluid mech. vol 791.

Paper(s) in Conference proceedings:

• Li, Yan, Ellingsen, S.Ã…, , in Proceedings of the 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE). Volume 7: Ocean Engineering, Busan, South Korea, June 19-26 2016.Paper No. OMAE2016-54250, pp. V007T06A002.
• Li, Yan, Ellingsen, S.Ã…, , in Proceedings of the 31st International Workshop on Water Waves and Floating Bodies (IWWWFB), Plymouth, Mi, USA, April 3-6 2016, Abstract 24.
• 2015
• Li, Yan, Li, X. & Luo, Y., , Journal of Ship Mechanics, 19(6), pp 1-13 (2015), (ID:1007-7294（2015）06-0664-13).

Paper(s) in Conference proceedings:

• Li, Yan, Ellingsen, S.Ã…, , in Proceedings of the 25th International Offshore and Polar Engineering Conference (ISOPE-2015) Kona, Hawaii June 21-26 2015, Vol.~3, pp. 543-549.
• Li, Yan, Ellingsen, S.Ã…, , in Proceedings of the 8th National Conference on Computational Mechanics (MekIT'15), Trondheim, Norway, May 18-19 2015, pp. 295-306.
• Ellingsen, S.Ã…, Li, Yan, , in Proceedings of the 30st International Workshop on Water Waves and Floating Bodies (IWWWFB), Bristol, UK, April 12-15 2015, pp. 57-60.

Journal paper in Chinese:

• Li, Yan, Wu, Shaobo, & Li, X., , Journal of Ship Mechanics, 19(6), pp 1-13 (2015), (ID:1007-7294（2015）06-0664-13).

2024-2029. ERC-STG-2024: OceanCoupling, funded by , Role: PI. (Start date: October 1, 2024, ).  

2023-2023. (Project number 342480, 464k NOK): "A bridge to ocean coupling" funded by . Role: PI. 

2019-2022.  (project number 287389, 3.3 Million NOK): "Water wave modulation and wave forces with sheared currents" funded by . Role: PI. Click  for the project description and updates.