I have been a Senior Lecturer in the Department of Naval Architecture, Ocean and Marine Engineering (NAOME) at the University of Strathclyde (UoS) since 2015. My research activity mainly focused on the hydrodynamic interaction between multiple floating bodies. Over the last 5 years, I have published 40 journal articles and 24 refereed conference proceedings on marine hydrodynamics. I was invited by Ronald Yeung to visit and carry out joint research in UC Berkeley (03/2017 – 09/2017) under Sir David Anderson Bequest Award. I was appointed as the committee member of International Towing Tank Conference (ITTC) and 1st and 2nd International Conference on Naval Architecture, Ocean & Marine Engineering (NAOME). I am a Member of the Royal Institution of Naval Architects (RINA), and I have been invited to review papers for more than 20 international journals. I am leading a research group consisting of 8 Ph.D students at UoS and 1 D.Eng student in IDCORE (Industrial Doctoral Centre for Offshore Renewable Energy).

Abstract: The future knowledge of the waves and force is indispensable for the model identification and the real-time control of ocean engineering devices. In order to effectively control the motion of the offshore structures in a real-time manner, it is required to have an accurate and efficient prediction of the waves. This study focuses on wave-force prediction of offshore structures based on deep machine learning algorithms. A novel wave-force prediction model is proposed, which makes full use of the efficient processing characteristics of Long Short-Term Memory Recurrent Neural Network (LSTM RNN) and Nonlinear Autoregressive Exogenous Feedback Neural Network (NARX FNN) when predicting wave excitation force by wave height. The proposed deep machine learning algorithm is utilized for wave-force prediction based on the experimental data obtained in Kelvin Hydrodynamic Laboratory. The results indicate that LSTM-NARX model can successfully predict the time series of the waves and force.

Abstract: A new optical method for measuring the free surface information in the laboratory is developing. This method reconstructs a three-dimensional model of a free surface based on the principle of stereo vision. By analysing the free surface information recorded from two different viewpoints, a 3-D model of the free surface can be reconstructed. By this method, we can get more free surface data. This method is validated by measuring the rotation of the plate with an accuracy of 0.08mm ± 0.04mm. At present, this method is being applied in the Kelvin Hydrodynamics Laboratory. We reconstructed the digital waves on free surface.

Abstract: The problem of Ship-lock interaction is very complex. When the ship enters the lock, it is inevitable that it will be affected by shallow water and the bank. In this process, there are two main reasons that complicate the hydrodynamic condition. The first reason is the piston effect caused by the translation wave in the gap between the ship and the lock door. The second reason is the return flow phenomenon in the lock. This project aims to use the hydrodynamic interaction programme MHydro to simulate the hydrodynamic conditions when the ship enters a lock and also predict the forces in 6 directions.

Abstract: Up to 80% of the offshore wind resources are in water depth higher than 60 metres, where floating wind turbines (FWTs) have advantages over the traditional bottom-fixed turbines. Due to the dynamic nature of the floating structures, FWTs are always oscillating in waves. It is essential to restrain pitch, roll and heave motions within acceptable limits, especially when the sea state is high. This project aims to control the motion of the floating wind turbine in a real-time manner based on the short-term prediction of wave elevation and wind speed. The active motion control scheme can be applied to minimize the platform motion based on the predicted wave elevation and wind speed, hence improving the operations of offshore floating wind turbine.

Abstract: Recently, there is an intensive study on wave interaction with submerged structures for wave attenuation in marine environment. The submerged horizontal eakwater does not block the incoming waves and can be properly tuned for attenuating the wave height. The interaction of surface waves passing over and beneath the plate create a phase difference which can lead to the destructive interference of the waves. The use of flexible structures provides the additional feature of wave attenuation through structural deformation compared to a rigid structure. The boundary element method (BEM) will be used effectively to analyze the hydrodynamic characteristics of the submerged horizontal flexible ate.

Abstract: The hydrodynamic responses of a fully coupled deepwater TLP system are studied in the project. A fully coupled TLP-TTR model is established. A specific hydraulic pneumatic tensioner is modelled by considering 4 cylinders. Different regular and irregular waves re considered. Consequently, the behaviours of different cylinders are presented. Besides, the local failure problem of the tensioner on a deepwater TLP is researched. The independent models of each TTR and its tensioner in the riser array are added on the existing model. Different environmental conditions, including a calm sea, regular waves and extreme sea states, are considered in the simulations. In the results, the behaviours of different cylinders of the failed tensioner are presented.

Abstract: A M–H method-based decision support system (MHDSS) which could evaluate survivability and aid real-time decision in shipboard flooding accident is presented. It relies on certain reasoning logic to select available counter-flooding tanks (CFTs) combination to provide swift and effective decision-making support for shipboard personnel on warship. In order to achieve an optimal response to a flooding accident, the M–H method firstly confirms the feasible region of CFTs. To evaluate the feasible scheme acquired, tilt angle is established as the decision criterion. During the process of searching for the feasible scheme, the method generates a scheme of single tank operation for one iterative process, and the final output is composed of all the scheme of single tank operation by means of linear superposition until terminating condition is encountered. The developed system mainly focuses on real-time decision aid for damage control in case of emergency.