Sub-sea tidal kites, while still at an early stage of development, might be an efficient and cost effective way of extracting energy from marine currents . During normal operating conditions the kite is positioned deep in the water column and would ideally be built neutrally buoyant. For operation and maintenance (O&M) situations, or if a fault occurs, it is important to surface the kite in a controlled manner. While the behaviour of wing like profiles in currents is well understood, the assessment of the behaviour in surface proximity and under wave action is not trivial . We employ an efficient boundary element code called panMARE  to simulate the effect of surface proximity and wave current interaction on a sub-sea kite. Comparison with experimental data from  demonstrates the suitability of the method to simulate forces on a submerged foil for varying immersion depths and angles of attack. Simulations are then performed to investigate the combined effect of waves and current to inform on the most suitable met-ocean conditions for kite retrieval.
|Publication status||Published - 15 Jun 2018|
- tidal energy, hydrofoil, Boundary Element Method (BEM), pan MARE , ma- rine renewable, wave current interaction