Wave Engager Board Surface for Low-Drag Water Propulsion
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Solution Overview
Problem
Existing personal water sports boards, such as boogie boards, lack effective engagement with driving water flows, limiting their operability and maneuverability.
Innovation Solution
The integration of wave engagers along the water-engaging surface, which allow laminar water flow in one direction while operably engaging water from the opposite direction to drive the board, positioned symmetrically and with graduated heights along the longitudinal centerline, enabling efficient propulsion and steering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the board surface is made smooth to reduce drag, then water flow resistance is reduced, but the board's ability to engage with waves and be propelled by water flow is diminished
Solution Approach 1:
The board surface is segmented into distinct zones: a smooth forward-facing surface for reduced drag and a textured rear-facing surface with wave engagers for wave engagement. This segmentation allows each zone to optimize its function independently, resolving the contradiction between low resistance and high wave engagement capability.
Solution Approach 2:
Different local areas of the board surface are given different qualities - the forward surface is smooth to minimize drag, while the rear surface contains wave engagers to maximize wave engagement. This local differentiation allows the board to simultaneously achieve low resistance and high productivity in water interaction.
2Productivity
If wave engagers are added to engage water flow, then propulsion capability is improved, but the complexity of the board structure increases
Solution Approach 1:
The wave engagers are merged with the board's existing water-engaging surface rather than being separate attachments. This integration maintains structural simplicity while providing enhanced propulsion capability, as the wave engagers become part of the board's inherent surface geometry.
Solution Approach 2:
The wave engagers utilize curved and angled surface geometries that naturally guide water flow and create propulsion through wave interaction. These curved structures are more efficient and simpler to manufacture than flat or complex geometric features, reducing manufacturing complexity while maintaining propulsion effectiveness.
3Productivity
If the board is designed to engage waves from behind, then wave propulsion is enhanced, but the board's ability to move freely through water in forward direction is restricted
Solution Approach 1:
The board surface is segmented into directional zones: the forward-facing surface is smooth to allow free forward movement, while the rear-facing surface contains wave engagers optimized for wave propulsion. This directional segmentation ensures that wave engagement features do not interfere with forward motion while maximizing wave propulsion efficiency.
Solution Approach 2:
The board surface is made asymmetric with different characteristics on the forward and rear sides. The forward surface is smooth for ease of operation, while the rear surface has wave engagers for enhanced propulsion. This asymmetry allows the board to optimize both forward movement freedom and wave propulsion efficiency simultaneously.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The wave engagers enhance the board's ability to be driven by water flows, creating a pushing sensation and allowing for easier movement and maneuverability, even in stagnant water, while maintaining smooth forward movement.
Implementation Method 1
The wave engager allows substantially laminar water flow past it in a first direction
Data Source
AI summary
A personal water sports board with a wave engager operably secured thereto for operation in a flow of water, such as a boogie board and the like, is disclosed. The wave engager has a wall shaped to allow water to flow freely thereby in one direction, but to operably engage water flowing from an opposite second direction thereby propelling the board in that opposite second direction. Disclosed embodiments include wave engagers formed of indentions and/or protrusions along the water engaging surface of the board. Preferably, a plurality of wave engagers are provided, and the height of each wave engager's wall increases the further it is positioned toward the front of the board. Wave engagers are preferably positioned on the lower surface and/or on the left and right sides of the board.