Marine engineering students wanted for computer modelling for solar electric boats

If Michlet is too slow, you can also try some empirical formulae I came up with. These formulae give the "optimum" width-to-length ratio for catamarans where it is assumed that the optimum spacing is one that eliminates the largest peak in the free wave spectrum. It is not exactly the optimal width-to-length ratio, but it is a reasonable first cut. The graphs associated with these equations also show that there is a band at which no finite width-to-length ratio is beneficial.

Click on the first publication at:
http://www.cyberiad.net/hybrid.htm

and look around page 32.

Leo.

 

Good stuff!

Yoav

 

Marine engineer, M.SC.students for computer modelling for solar electric boats

I have already taken my Bachelor's in Marine Engineering and Naval Architecture, and am taking my Master's in Turbulence, Mechanical Engineering at Chalmers University of Technology, Gothenburg-Sweden. I wish to be eligible for this position.

 

I have just started digging into your spreadsheet, Rene. It is really an excellent piece of work. I hope others will be inspired by your example. This is a very logical approach to the problem of determining the sweet spot for solar catamarans. Of wider scope is the obvious usefulness of such spreadsheet programs for comparative boat design.

Any comments Leo, Brien?

 

Thanks Leo. You always have been helpful and encouraging.

I have used the hull spacing as the fixed parameter in the design. I have noticed that Michlet and Hull form uses the centerline of the hull to define hull spacing. Should i change the spreadsheet to conform? What do you think.

Thanks in advance.

 

Icetreader,

Thanks. Glad you appreciated it. I have also done a similar work for monohull. Because there arent too many constraint unlike the catamaran, this one outputs not only the coefficients but the hull form as well. The waterline shape, section shape, entry angle, ect.

The correct hull form for every S/L ratio.

Will post it soon.

 

I haven't had time to look at the spreadsheet yet, but I don't think it should matter much whether you use centreline spacing or the tunnel width, as long as you are consistent and the user is clear on what is being used.

Cheers,
Leo.

 

Updated Cat design

Have updated Cat design so that output can be validated against a standard such as michlet.

Constraint is on hull breadth instead of hull spacing and advance filtering made easy.

 

Thanks Rx,

You deserve credit for creating this fine tool, and you should publish it under your name

Yoav