| Author | Search for: Shih, L. Y.; Search for: Zheng, Y. |
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| Sponsor | Search for: Canadian Coast Guard; Search for: National Research Council of Canada. Institute for Marine Dynamics; Search for: Panel on Energy Research and Development |
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| Format | Text, Memorandum |
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| Subject | computer simulation; propeller-ice interaction; hydrodynamic load; ice blockage; 3-D BEM |
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| Abstract | This memorandum presents a complete account of the simulation results. A 3-D boundary element method is developed to calculate unsteady hydrodynamic force acting on a propeller with ice blockage at proximity condition. The boundary surfaces are discretized into triangular elements, and on each panel the velocity potential is distributed uniformly. The potential jump on the helical wake surface is determined by applying Kutta condition at trailing edge. A part of influence coefficients are renewed at each time step due to the motion of ice-block. Computed results show that the maximum thrust and torque of propeller can be 1.6 times of the normal value when the ice-block reaches the propeller; the local loading at blade section can be about 6 times of the normal value. |
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| Publication date | 1993 |
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| Publisher | National Research Council of Canada. Institute for Marine Dynamics |
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| Place | St. John's, Newfoundland, Canada |
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| Series | |
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| Language | English |
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| NRC number | NRC-IOT-5622 |
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| NPARC number | 8895959 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 07aba1b5-4ba6-4d35-9d4b-91866eedf4e0 |
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| Record created | 2009-04-22 |
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| Record modified | 2025-03-06 |
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