THE PREDICTION OF SHIP PERFORMANCE BY CALCULATION OR BY MEASUREMENT?
Since 1868, when William Froude put forward his law of comparison, model tests have been carried out to obtain results that can be used to predict ship performance. The problems involved, those of scale effects and methods of extrapolation are characterized as resulting in predictions whose quality has been--and despite improvements in methodology, will continue to be--below acceptable standards. At the same time, new computer programs and faster computational speeds offer the tools needed for accurate prediction by calculation, which can then be verified by full-scale tests. It is suggested that these new capabilities might well make model testing a method to be resorted to only for those cases where a prediction method is not yet available and full-scale test results are completely lacking.
- Conference paper
- Schneiders, C C
- Lips Propeller Symposium, 7th
- Location: Noordwijk aan Zee, The Netherlands
- Date: 1989-9-21 to 1989-9-22
- Publication Date: 0
- Features: References;
- Pagination: 16p.
- TRT Terms: Accuracy; Alternatives analysis; Calculation; Forecasting; Measurement; Methodology; Performance; Prototype tests; Ship operations; Statistical analysis
- Uncontrolled Terms: Computation; Model tests; Scale effect
- Old TRIS Terms: Ship performance
- Subject Areas: Data and Information Technology; Marine Transportation;
- Accession Number: 00660188
- Record Type: Publication
- Source Agency: Maritime Technical Information Facility
- Files: TRIS
- Created Date: Jul 21 1994 12:00AM