<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Based on the potential flow theory and traditional boundary element method (BEM), Taylor expansion boundary element method (TEBEM) is introduced in this paper for the prediction of the flow field around ship, as a result, hull gesture and pressure distribution on hull surface are obtained. By this method, dipole strength of every field point is expanded in Taylor expansion, so that approximately continuous hull and free surface boundary condition could be achieved. To close the new equation system, the boundary condition of tangent velocity in every control point is introduced. With the simultaneous solving of hull boundary condition and free surface condition, the disturbance velocity potential could be obtained. The present method is used to predict the flow field and hull gesture of Wigley parabolic hull, Series 60 and KVLCC2 models. To validate the numerical model for full form ship, the wave profile, the computed hull gesture and hull surface pressure of KVLCC2 model are compared with experimental results.</p></abstract>

Based on the potential flow theory and traditional boundary element method (BEM), Taylor expansion boundary element method (TEBEM) is introduced in this paper for the prediction of the flow field around ship, as a result, hull gesture and pressure distribution on hull surface are obtained. By this method, dipole strength of every field point is expanded in Taylor expansion, so that approximately continuous hull and free surface boundary condition could be achieved. To close the new equation system, the boundary condition of tangent velocity in every control point is introduced. With the simultaneous solving of hull boundary condition and free surface condition, the disturbance velocity potential could be obtained. The present method is used to predict the flow field and hull gesture of Wigley parabolic hull, Series 60 and KVLCC2 models. To validate the numerical model for full form ship, the wave profile, the computed hull gesture and hull surface pressure of KVLCC2 model are compared with experimental results.

The Prediction of Hull Gesture and Flow Around Ship Based on Taylor Expansion Boundary Element Method

Polish Maritime Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Based on the potential flow theory and traditional boundary element method (BEM), Taylor expansion boundary element method (TEBEM) is introduced in this paper...

The Prediction of Hull Gesture and Flow Around Ship Based on Taylor Expansion Boundary Element Method

Published Online: Jul 12, 2019

Page range: 198 - 211

DOI: https://doi.org/10.2478/pomr-2019-0039

Keywords
TEBEM, potential flow, flow field, hull gesture, surface pressure

© 2019 Jiaye Gong et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The Prediction of Hull Gesture and Flow Around Ship Based on Taylor Expansion Boundary Element Method

Published Online: Jul 12, 2019

Page range: 198 - 211

DOI: https://doi.org/10.2478/pomr-2019-0039

KeywordsTEBEM, potential flow, flow field, hull gesture, surface pressure

© 2019 Jiaye Gong et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
TEBEM, potential flow, flow field, hull gesture, surface pressure