| one publication added to basket [409362] | Exploring the hydrodynamic effects at high rudder angles on inland vessels
Jasa, J.; Tenzer, M.; Friedhoff, B. (2025). Exploring the hydrodynamic effects at high rudder angles on inland vessels, in: Eloot, K. et al. 7th MASHCON International Conference on Ship Manoeuvring in Shallow and Confined Water with non-exclusive focus on clean power in shallow water, 18-21 May 2025, Bruges, Belgium: conference program and proceedings. pp. 165-174
In: Eloot, K. et al. (2025). 7th MASHCON International Conference on Ship Manoeuvring in Shallow and Confined Water with non-exclusive focus on clean power in shallow water, 18-21 May 2025, Bruges, Belgium: conference program and proceedings. Flanders Hydraulics/Ghent University: Antwerp. XII, 529 pp. https://dx.doi.org/10.48607/316, more
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Document type: Conference paper
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| Authors | | Top |
- Jasa, J.
- Tenzer, M.
- Friedhoff, B.
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| Abstract |
Studies on inland vessel manoeuvrability remain limited, making it difficult to establish trends and regression models similar to those for seagoing ships. The influence of shallow water, restricted channels, and variable water currents further complicates manoeuvring analysis. Due to lack of dedicated data, many existing studies from maritime are adapted to inland vessels despite their limitations. In particular, wake modelling, originally developed for single‐propeller, single‐rudder ships, is often applied to multi‐propeller, multi‐rudder inland vessels. However, it assumes wake variations occur solely due to vessel kinematics, overlooking confined water effects, multi‐rudder asymmetries, and direct propeller‐rudder interactions. This study experimentally examines rudder deflection effects on thrust and mathematically evaluates wake characteristics using a twin‐propeller, quadruple‐rudder (TPQR) inland ship model under varying loading conditions, speeds, rudder deflections, and water depths, including shallow water. Results show that high rudder deflections increase propulsion system thrust, reduce aft flow, and generate asymmetries in thrust and wake at lower ℎ/ ? ratios between port and starboard, offering insights for refining inland vessel manoeuvring predictions. |
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