International Symposium on 'Yacht Design and Yacht Construction' (15th). Held in211 Amsterdam, The Netherlands on November 16, 1998. Proceedings. Approximation of 211 the Hydrodynamic Forces on a Sailing Yacht Based on the 'Delft Systematic Yacht 211 Hull

摘要

Over the past years a considerable extension has been given to the Delft211u001eSystematic Yacht Hull Series (DSYHS) The DSYHS data set now contains information 211u001eabout both the bare hull and appended hull resistance in the upright and the 211u001eheeled condition, the resistance increase due to the longitudinal trimming moment 211u001eof the sails, the sideforce production and induced resistance due to sideforce at 211u001evarious combinations of forward speeds, leeway angles and heeling angles. New 211u001eformulations for the relevant hydrodynamic forces as function of the hull 211u001egeometry parameters have been derived to be able to deal with a larger variety of 211u001eyacht hull shapes and appendage designs. During the past two years some results 211u001eof this research have already been published. In the present paper an almost 211u001ecomplete picture of the relevant expressions which may be used in a Velocity 211u001ePrediction Program (VPP) will be presented.