5. RESISTANCE

Michlet calculates a variety of resistance components. Wave resistance is estimated using Michell's thin-ship theory augmented for (among others) transom stern effects and boundary layer displacement thickness effects.

For monohulls and for the individual hulls of a multihull, output includes:

Note that for supercritical depth-based Froude numbers, Rwtrans is always equal to zero: there are no transverse waves!

As well as the components defined above, Michlet also calculates the following interference resistance components:

Note that for these interference components, positive values mean no beneficial interference, (i.e. resistance is increased) negative values mean that there is some beneficial wave cancellation (i.e. resistance is decreased).


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