Stationary Tank Wave Generator via Chain-Driven Paddles
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Solution Overview
Problem
Conventional wave propagation devices require tilting or moving the underlying tank to maintain rolling waves, which is inconvenient and not aesthetically pleasing.
Innovation Solution
A wave propagation apparatus with a containment tank and elongate paddles that use a gear and chain assembly to create dragging waves by displacing an overlying fluid with lower density, which generates continuous rolling waves in the base fluid due to surface tension without requiring tank movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional wave propagation devices are used, then rolling waves can be produced, but the tank must be tilted or moved continuously which is inconvenient and not aesthetically pleasing
Solution Approach 1:
Instead of moving the tank to create waves (conventional approach), the invention inverts the approach by keeping the tank stationary and moving the paddles relative to the fluid. The paddles are rotated by a motor-driven shaft to displace the fluid and generate waves, while the tank remains fixed and stable.
Solution Approach 2:
The invention introduces an intermediary mechanism (the paddle wheel assembly with rotating paddles) between the motor and the fluid. The motor drives the shaft, which rotates the paddles, and these paddles interact with the fluid to generate waves, serving as an intermediary that transfers mechanical motion to fluid motion without moving the tank.
2Reliability
If the tank is tilted or moved to maintain rolling waves, then waves can be sustained, but the operation becomes inconvenient and visually disturbing
Solution Approach 1:
The invention employs periodic action by rotating the paddles in a continuous circular motion. The paddles periodically enter and exit the fluid at regular intervals, creating sustained rolling waves. This periodic displacement of fluid by the rotating paddles ensures continuous wave generation without needing to tilt or move the tank.
Solution Approach 2:
The motor-driven shaft continuously rotates the paddles, maintaining uninterrupted wave generation. The continuous rotational motion ensures that paddles are constantly displacing the fluid, creating an unbroken sequence of waves that sustains the visual effect without interruption or the need for periodic tank movement.
3Force
If paddles enter the base fluid, then stronger waves are created, but the two fluids mix and lose their layered structure
Solution Approach 1:
The paddles are designed with specific local qualities: they have a particular length that allows them to extend into the overlying fluid but stop before reaching the base fluid. This local differentiation in paddle length creates the desired wave action in the overlying fluid while preserving the integrity and separation of the base fluid layer, maintaining the stable layered structure.
Solution Approach 2:
The invention controls the parameter of paddle length to achieve the desired effect. By adjusting the paddle length parameter, the system optimizes wave generation in the overlying fluid while preventing intrusion into the base fluid, thus maintaining the density-based layering and preventing mixing of the two fluids.
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 apparatus produces continuous, aesthetically pleasing rolling waves in the base fluid without the need to tilt or move the tank, allowing for adjustable wave frequency through paddle placement and motor control.
Implementation Method 1
an overlying fluid (e.g., oil, mineral oil) that has a density that is lower than a density of the base fluid, so they remain separate with the overlying fluid above the base fluid
Implementation Method 2
This creates a dragging wave in the base fluid during rotation, due to displacement of the overlying fluid by the paddles and due to a surface tension between the base fluid and overlying fluid
Data Source
AI summary
A wave propagation apparatus. The apparatus includes a container enclosing a base layer/liquid and an overlying layer/liquid separated from each other. Above the overlying layer is a driver sprocket and a driven sprocket, which rotate about their respective central shafts, which are fixed across a width of the container. A closed chain loop is disposed around the sprockets, with a plurality of paddles secured thereto at a spaced distance away from each other. The chain rotates about the sprockets as they rotate about the central shafts. The driver sprocket rotates via a motor, which is controlled by a controller and powered by a power source. The paddles travel through the overlying layer but not through the base layer, thus displacing the fluid in the overlying layer and causing a dragging wave to appear in the base layer, due to the surface friction between the base layer and the overlying layer.