When I open my Maxsurf model in Hydromax, some sections are wrong. What should I do to fix that?
Remember that for Hydromax to work it must be able to form sections through the model. Any extra surfaces (or missing surfaces) that cause ambiguity will give Hydromax problems and may lead to Hydromax interpreting the model incorrectly. The 4 key rules are: • At any longitudinal position, you must have non-intersecting, closed contours. • For a given longitudinal position, you can have a maximum of one opening and this will be closed by a straight line — i.e. for a monohull its generally OK to leave the deck off. • You cannot have a contour completely inside another contour — this type of feature (e.g. waterjet duct) needs to be modelled with a non-buoyant volume. • Surfaces which form vertical transverse planes are generally best avoided since a section at precisely the longitudinal position of the surface is undefined (it contains the whole surface not just a simple contour).
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