Adjustable Flow Guide Body for Straight Standing Waves
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Solution Overview
Problem
Existing devices are unable to generate high-quality straight standing waves suitable for leisure and sports activities, and they often create dangerous flow situations due to their inability to control wave shape and height effectively.
Innovation Solution
A device with an adjustable transverse structure, ramp, and counter-ramp, where the ramp's slope and counter-ramp's angle can be adjusted to control the flow, combined with a flow guide body that can change shape with internal pressure, and additional features like flow-influencing structures and gas addition to modify the wave characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a transverse structure with curved guide ramp is used to generate standing waves, then breaking standing waves can be generated, but straight standing waves cannot be generated due to complex three-dimensional flow guidance
Solution Approach 1:
The device is divided into separate functional components: a transverse structure for wave generation, a ramp for flow acceleration, and a flow guide body for flow control. This segmentation allows each component to be optimized independently - the transverse structure generates the wave while the flow guide body ensures two-dimensional flow patterns necessary for straight standing waves.
Solution Approach 2:
A flow guide body is introduced as an intermediary component between the wave-generating transverse structure and the downstream area. This flow guide body mediates the flow patterns, transforming the complex three-dimensional flow into controlled two-dimensional flow, thereby enabling straight standing wave generation while maintaining wave quality.
2Productivity
If the wave-generating structure is located directly below the standing wave, then wave generation is effective, but control over wave shape and height is limited
Solution Approach 1:
The flow guide body is designed with adjustable components that can be dynamically repositioned to control wave characteristics. The ability to adjust the flow guide body's position and orientation allows real-time control of wave shape and height while maintaining the structure's optimal location for wave generation.
Solution Approach 2:
The device incorporates adjustable parameters including the flow guide body's position, the ramp's geometry, and the transverse structure's configuration. By changing these parameters, operators can control wave shape and height without relocating the entire wave-generating structure, thus maintaining generation efficiency while improving controllability.
3Productivity
If existing wave generation devices are used, then waves can be generated, but dangerous flow situations occur due to inability to control flow patterns
Solution Approach 1:
The flow guide body is designed to convert potentially dangerous three-dimensional flow patterns into controlled two-dimensional flow. By guiding the flow in a predetermined manner, the device transforms chaotic, hazardous flow into organized, predictable flow patterns that maintain wave generation effectiveness while eliminating dangerous conditions.
Solution Approach 2:
The flow guide body is positioned upstream to pre-control flow patterns before they reach the wave area. This anticipatory flow management prevents dangerous flow situations from developing in the first place, cushioning users from potential hazards while maintaining productive wave generation.
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
Enables the generation of optimized straight standing waves for recreational use, allowing control over wave shape and height, reducing dangerous flow situations, and enhancing safety and maneuverability for users.
Implementation Method 1
a flow guide body (4) which is downstream of the counter-ramp (2) and can change shape with internal pressure
Data Source
Figure 1~1b
Figure 2~5
AI summary
The arrangement for producing linear standing waves comprises: a transverse structure (Q) which is arranged at least substantially perpendicularly to the flow direction (S), this structure being designed in such a way that the outflow is converted from a streaming flowing movement (Froude number < 1) into a shooting flowing movement (Froude number > 1); a ramp (1) which is connected downstream to this transverse structure (Q) and which is arranged at least substantially perpendicularly to the flow direction (S); a counter-ramp (2) which is arranged at least substantially in the flow direction (S) at the downstream end of this ramp (1) and whose average inclination in the flow direction (S) forms an angle (a) to the horizontal in the flow direction (S), and which has a flow-promoting transition to the ramp (1) at its upstream end; a base (3) which is arranged downstream of the ramp (1) and the counter-ramp (2) and whose bottom is arranged lower by a height dimension (a) than the downstream end of the ramp (1) and/or the upstream end of the counter-ramp (2); and a height-adjustable flow-guiding element (4) which is arranged at least approximately perpendicularly to the flow direction (S) in the downstream region of the base (3) and which directs the flow in such a way as to produce no eddies there which have pronounced flow components counter to the main flow in the flow direction (S). The ramp (1) and the counter-ramp (2) are preferably adjustable in their inclination in the flow direction. The arrangement is suitable for producing linear standing waves in a flowing medium, in particular for leisure and sport activities.