Watercraft Hull Design TRIZ Cases

Rear-facing U-shaped vents generate bubbling effects that reduce drag and improve speed without clogging from forward water flow.

A ship micro-bubble generator uses a hull wing and air compressor to produce bubbles via Kelvin-Helmholtz instability.

Wells communicate with fluid-support structures to stabilize pressure and prevent air bubble formation in microfluidic channels.

Angled keels generate an air cushion along outboard walls, reducing drag by 20% to 45% and improving stability in rough water.

Segmented hull design with vertical sidewalls resolves the drag versus directional stability trade-off in planing vessels.

A microbubble generator creates negative pressure via a wing to draw air into water, reducing hull friction without requiring specific hull shapes.

A rotatable damping element extends from a ship hull below the water line to actively stabilise roll motion during sailing.

Three-pontoon floatation system with asymmetric strakes redirects water flow to enhance marine vessel handling.

A boat interceptor guiding arrangement absorbs hydrodynamic forces through rolling members and toothed wheels.

Upward water jets replace mechanical breakers, reducing hull friction and preventing structural damage from heavy ice loads.

Hierarchical sub-microstructures reduce surface reflections on aerodynamic riblets.

Underside wave splitters redirect rising water flow to prevent bridge deck slamming loads while spray rails manage tunnel spray exit.

Compressor-driven air cavity generates micro bubbles along a vessel hull to reduce frictional drag.

Inverting the lift application point behind the center of gravity resolves pitch instability at high speeds.

A vessel tunnel houses a rotatable screw with an air pump to remove air, reducing fuel consumption and bow wave formation.

A submerged aft foil generates forward propulsion force, reducing hydrodynamic resistance and fuel consumption.

Hydrofoils and an aerodynamic wing enable dynamic speed transitions, reducing resistance while maintaining stability in rough seas.

A bulbous lower bow portion positions its upper surface at the design waterline to engage ice efficiently.

Segmented hull chines resolve the speed versus payload contradiction by reducing wave-making resistance.

A tapered motor pod running surface enables planing on pontoon vessels, reducing turning radius while maintaining stability.

Water outlets inject streams to form a shield that reduces vessel resistance, overcoming parasitic drag without compromising transverse thrust.

A reconfigurable boat hull running surface adjusts wake size and shape through a movable extension member.

A trim tab and interceptor blade share a housing with a cam link converting linear actuator motion into reciprocating blade movement.

Curved cylindrical floats reduce wave impact counterforce, maintaining stable horizontal positioning at high speeds.

Segmented hull cavities inject air at hydrostatic pressure to reduce frictional drag while minimizing energy consumption.

Segmenting flow via a fixed duct structure lowers fuel consumption by resolving the trade-off between frontal area and drag.

Segmented bubble generators mounted in recessed hull slots reduce friction drag while protecting components from external damage.

Adjustable mounting brackets and a fluid hinge allow trim tabs to slide onto sloped or curved transoms, eliminating the need for resin fillers and long bolts.

V-shaped flow profiles feature aerodynamic stabilizers that generate lift and downforce to counteract heeling moments on sailboats.

An air-flow channel extends the air path via a spoiler surface to produce a lifting force that increases tire-road adhesion without adding vehicle weight.

Retractable lateral wing structure delivers auxiliary thrust to achieve planing state, reducing drag and transit time for fully loaded cargo ships.

A curved protrusion in a propeller tunnel conforms to water contraction, reducing low-pressure regions and cavitation.

A planar wave deflector covers most of the air cavity opening, blocking debris entry and reducing drag when the system is off.

Segmented buoyant cowlings adjust stern depth to level the hull, reducing water resistance while maintaining watertight engine compartment integrity.

Axially adjustable disc segments adapt supercavity volume to navigation speed, reducing drag and water-entry impact loads.

A boat hull with a deep V-shaped keel and side chines reduces drag while maintaining stability.

A retractable foil system pivots on a strut to absorb impact energy and maintain vessel stability during collisions.

A jet-propelled water-entry buffer device uses gas recycling to form a supercavity.

Side skegs and a submerged foil redirect water flow to reduce bow wave propagation, maintaining cargo capacity while minimizing wake interference.

Turbulence members and keels shape air cavities that minimize wet surface area, lowering drag while maintaining cargo capacity.

Downwardly sloping trailing walls and horizontal ceilings in aft cavities reduce moon pool sloshing and flow resistance for improved sailing performance.

A trim tab pivots downward to plough into water and create stern drag.

Jetting fluid above the waterline generates a Coanda flow that entrains air, creating an air cavity to reduce frictional resistance.

Flexible inflatable hulls conform to wave surfaces, reducing structural stress and drag for high-speed marine operations.

Asymmetrical front and symmetrical rear hull sections form a tunnel that lifts the craft, lowering power consumption for planning speed.