Standing Wave Device Flow Straightener Laminar Control

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Solution Overview

Problem

Existing devices for generating standing waves lack precision and control, often resulting in turbulent water flows which can be unsafe and inefficient.

Innovation Solution

A device featuring a flow straightener with iterative height decrease guide plates and a ramp adjacent to the discharge opening, combined with a blade for adjusting the evacuation opening height, to produce a laminar flow and control the standing wave generation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional devices are used to generate standing waves, then wave generation is achieved, but the water flow becomes turbulent and control precision is poor

Engineering Contradiction:
Improvecontrol precisionVSAvoidturbulence
Core Design Contradiction:
Manufacturing precisionVSObject-generated harmful factors

Solution Approach 1:

The flow straightener is installed upstream in the evacuation device to preliminarily condition the water flow before it reaches the wave generation zone. This preliminary action of straightening and laminarizing the flow prevents turbulence from developing downstream, thereby achieving both smooth flow and precise wave control simultaneously

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The flow straightener acts as an intermediary component between the water source and the wave generation mechanism. It mediates the flow characteristics by converting turbulent flow into laminar flow, which then enables precise control of the standing wave generation without the harmful effects of turbulence

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If energy is increased to generate standing waves, then wave generation is achieved, but energy efficiency decreases due to turbulence and loss

Engineering Contradiction:
Improvewave generation efficiencyVSAvoidenergy loss
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The invention changes the flow parameters (from turbulent to laminar) through the flow straightener, which reduces energy dissipation. By controlling the flow regime parameter, the system achieves efficient wave generation with minimal energy loss, as laminar flow maintains kinetic energy better than turbulent flow

Inventive Principle:
Principle #35Parameter changes

3Productivity

If flow rate is increased to improve wave generation, then productivity increases, but turbulence increases and safety decreases

Engineering Contradiction:
Improvewave generation rateVSAvoidsafety hazard from turbulence
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The flow straightener performs preliminary flow conditioning at high flow rates, establishing laminar flow patterns before water enters the wave generation zone. This allows the system to operate at high productivity levels while maintaining safety, as the preliminary straightening prevents dangerous turbulence even at increased flow rates

Inventive Principle:
Principle #10Preliminary action

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 device achieves a precise and controlled generation of standing waves with reduced turbulence, optimizing energy use and ensuring a smooth, safe water flow.

Implementation Method 1

The evacuation device for producing laminar flow comprises an evacuation chamber, the evacuation device comprising in the evacuation chamber a flow straightener with a plurality of guide plates

Methodology Applied
Scientific EffectLaminar flow: Laminar Flow

Implementation Method 2

the flow straightener with a plurality of guide plates, in which the height decreases iteratively and/or evenly along the outlet

Methodology Applied
Scientific EffectFlow straightening:

Implementation Method 3

further comprising a ramp directly adjacent to the discharge opening of the discharge device, sloped in the direction of downward flow

Methodology Applied
Scientific EffectGravitational flow: Gravitation

Data Source

PatentEP3610097B1Device for generating a standing wave
Publication Date: 2020.09.09 HYDROSTADIUM
  • EP3610097B1 patent drawingFigure 1
  • EP3610097B1 patent drawingFigure 2A~2B
  • EP3610097B1 patent drawingFigure 3

AI summary

The invention relates to a device (10) for generating a standing wave (12) with at least one discharge device (36) for producing a laminar flow. The discharge device for producing a laminar flow comprises a discharge chamber (80) and, in the discharge chamber, a flow rectifier (84) with a plurality of guide plates (86, 88).