HYDRODYNAMIC STUDY AND SIMULATION OF MULTIPLE SHIP INTERACTIONS IN INLAND WATERWAYS AND SHALLOW WATERS
Problem Addressed :
Experimental and numerical analysis of mutual forces between closely passing vessels in narrow inland waters is the main issue that will be investigated. An emphasis will be made on determining non-linear effects of wave surface and resonant wave motions occurring between ships and in narrow channels on the hydrodynamic forces and moments acting on the ships. The project is in concert with NTCPWC’s objective to provide technical support service to the Ministry of Shipping (MoS), in particular to IWA in improving and modernizing inland waterways for transport of cargo. The project will thus immensely contribute to the Sagarmala program as envisaged by the MoS.
Relevance under Sagarmala :
This project is relevant under connectivity enhancement, Industrialization and community development.
Why now :
For modernizing and improving the capacity of inland waterways for shipping, a good knowledge of the mutual interactions between ships and between ships and channel boundaries is crucial. The proposed project is also timely in the sense that it will immensely contribute to the recent Sagarmala proposal by the MoS to significantly improve shipping and increase the movement of cargo in inland waterways.
Current Status in India :
It is recalled that even now India relies on foreign knowledge to quantify forces on vessels in navigation. Work on this investigation is not yet proposed by any research organization.
Global Status :
As for the scientific outcome of the proposed project, the present knowledge of ship-to-ship interactions is largely based on linear theories and without accounting for surface wave effects. The proposed problem, which will also address the non-linear and wave effects, will therefore also contribute to better understanding of complex ship to ship interactions in confined waterways and ports.
Timelines of completion :
Total project duration is 36 months, with the following milestones
| 1st year | Development of computational algorithms to study ship-ship and ship-bank interactions in inland waterways and ports, including surface effects. |
| 2nd year | Numerical simulation of ship-ship and shipbank interactions in ports and waterways for a range of parameters such as speed, separation and stagger distances, surface wave height and length etc. |
| 3nd year | Experimental studies using scale models in shallow water basins and wave plumes to be developed at the centre NTCPWC of IIT Madras as part of the proposal. And development of guidelines for safe and efficient shipping in inland waterways. |
Key competencies and stakeholders involved :
IIT Madras is the leader in this area. Other agencies are the MoS, IWA, IIT Madras, and authorities of major ports in India.
Short Term Impact :
Development of computational tools to study ship hydrodynamic interactions in inland waterways and ports.
Medium Term impact :
Better understanding of ship interactions in confined waters and narrow waterways.
Long term impact :
Contribution to modernizing and improving movement of cargo through coastal and inland waterways.
Physical location of the project :
NTCPWC, IITM Campus.
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