UliTank available

[Remmlinger]

As I have promised in the thread http://www.boatdesign.net/forums/hydrodynamics-aerodynamics/delft-hull-series-51213.html
a program is available that computes the bare hull resistance based on the DSYHS. It can be downloaded here:
http://www.remmlinger.com/UliTank.html
If you like to propose improvements, please let me know.
Uli

 

[Mikko Brummer]

Great, thank you. Have you made any comparisons against the original Delft method, on differences in predicted forces when scaled to fullsize?

 

[Remmlinger]

Great, thank you. Have you made any comparisons against the original Delft method, on differences in predicted forces when scaled to fullsize?

Look at the file DRAGfs.xls in the folder EXAMPL in the zip-file
Ct is the coefficient using the new regression and Ct_delft is the result for the old Delft-method.
This diagram is also included in my report about the theoretical background of the regression analysis.