Shagun Agarwal

Shagun Agarwal holds a BTech/MTech in Naval Architecture and Applied Mechanics, and a PhD in Ocean Engineering from the Indian Institute of Technology Madras. 

His research interests are in the development of numerical methods and their application to a wide range of ocean and coastal engineering problems. His present research at TU Delft is on modeling the visco-elastic response of large floating platforms in complex wave-environment, targeted towards wave-energy converters and floating solar-farms.

His PhD research project was on modeling wave-structure interaction through three-dimensional coupling between a 3D particle-based viscous flow model (MLPG) and a 2DH mesh-based potential flow model (FEBOUSS). The hybrid approach improves computational efficiency, minimizes numerical dissipation over large domain and allows exposing structures (such as wind-turbine foundations) to realistic wave-environment. The thesis involved mathematical formulation, numerical implementation, and validation of the two numerical models along with the conceptualization of the coupling interface. 

He has also worked on other state-of-the-art numerical models such as FEM-based QALE from City, University of London for 3D fully-nonlinear potential theory, the Hydro3D code for large-eddy simulation from University College London, and storm surge modeling. This research has been applied to study wave-vegetation interaction and coastal inundation. His other research interests include ship-generated waves, underwater robotics and propeller design for ROVs.

Key publications

Agarwal, S., Sriram, V., Murali, K., 2022. Three-dimensional coupling between Boussinesq (FEM) and Navier–Stokes (particle based) models for wave structure interaction. Ocean Engineering 263, 112426. https://doi.org/10.1016/j.oceaneng.2022.112426

Agarwal, S., Sriram, V., Liu, P.L.-F., Murali, K., 2022. Waves in waterways generated by moving pressure field in Boussinesq equations using unstructured finite element model. Ocean Engineering 262, 112202. https://doi.org/10.1016/j.oceaneng.2022.112202

Agarwal, S., Sriram, V., Yan, S., Murali, K., 2021. Improvements in MLPG formulation for 3D wave interaction with fixed structures. Computers & Fluids 218, 104826. https://doi.org/10.1016/j.compfluid.2020.104826

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