Michlet

[phillipviana]

I was using maxsurf to estimate the resistance of a container ship, but I was wanting to compare the results with michlet too. How can I download this program? Thanks

[phillipviana]

I am trying to estimate the resistance of a container carrier that I designed on FreeShip in Michlet, but I am facing many difficulties.
Could someone help me with this,
at least how can i start...
thank you

[Leo Lazauskas]

Originally Posted by phillipviana

I am trying to estimate the resistance of a container carrier that I designed on FreeShip in Michlet, but I am facing many difficulties.
Could someone help me with this,
at least how can i start...
thank you

See:
http://www.cyberiad.net/michlet.htm

For a start, read the manuals and run the examples.

Good luck!
Leo.

[MJD12]

Leo,

I am trying to calculate the resistance of a monohull sailboat at different leeway angles. I read in the MICHLET users guide that the leeway parameter is reserved for future enhancements and should be left at 0.

I was wondering if there was anyway to incorporate leeway into the current version of MICHLET, or if you had any suggestions of alternative methods to accomplish this.

Any advice would be much appreciated,
Thanks

[Leo Lazauskas]

Originally Posted by MJD12

Leo,

I am trying to calculate the resistance of a monohull sailboat at different leeway angles. I read in the MICHLET users guide that the leeway parameter is reserved for future enhancements and should be left at 0.

I was wondering if there was anyway to incorporate leeway into the current version of MICHLET, or if you had any suggestions of alternative methods to accomplish this.

Any advice would be much appreciated,
Thanks

I made a start on this, but haven't got far. My lifting surface program can estimate the lift and induced drag of thin low aspect ratio wings, but they are very different from boat hulls! Still, if you have nothing else you could try modelling the leeway drag using the centreplane of the boat as a thin wing, and assuming the free surface is flat, i.e. a plane of symmetry. That's a "rough as guts" approach and I'd hope there is something better around.

Have you searched to see if there are any experimental results for sailboats? I seem to recall seeing a paper where somebody used the Delft series or similar.

BTW, I'm not convinced that Michlet is the best way to go for sailboats, unless their length-to-beam ratio is greater than about 7.

Good luck!
Leo.