Calm water manoeuvring simulations are commonly used at the initial design stage as they provide useful an practical insight concerning ship's manoeuvrability and compliance with the relevant IMO criteria. In this paper the authors present ELIGMOS; a time-domain numerical code utilizing a 3-DOF manoeuvring model based on the MMG method. For the validation of the code's predictions, a comparison with the experimental results on the turning ability of S-175 has been conducted. The paper presents also the investigation performed regarding the accuracy of certain empirical formulas for the derivation of the manoeuvring derivatives is also investigated, especially for the case of shallow water where experimental data and results remain scarce. The code is written in C++ programming language, adopting a modular approach for the calculation of external forces and moment (i.e. hydrodynamic hull, rudder and propeller) which allows future enhancements with the introduction of additional terms.
|Number of pages||6|
|Publication status||Published - 13 Oct 2016|
|Event||International Conference of Maritime Safety and Operations 2016 - University of Strathclyde, Glasgow, United Kingdom|
Duration: 13 Oct 2016 → 14 Oct 2016
|Conference||International Conference of Maritime Safety and Operations 2016|
|Abbreviated title||MSO 2016|
|Period||13/10/16 → 14/10/16|
- time domain simulation
- shallow water performance
- turning circle
Pollalis, C., Boulougouris, E., Turan, O., & Incecik, A. (2016). ELIGMOS: time domain simulation of the maneuvering of ships in deep and shallow waters. 211-216. International Conference of Maritime Safety and Operations 2016, Glasgow, United Kingdom.