Livewell Water Level Control for Boat Turbulence
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Solution Overview
Problem
Fishermen face challenges in keeping caught fish alive during high-speed boat travel, rough seas, and long distances due to turbulence in partially filled livewells, which can lead to fish mortality and weight-related performance issues in fishing boats.
Innovation Solution
The livewell system allows for multiple modes of operation, including the ability to flood a reservoir tank to nearly full capacity during high-speed or rough conditions, and to reduce water volume when less weight is needed, using an overflow valve, one-way valve, water level sensor, and fluid level control unit to manage water levels effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the livewell is kept partially full of water, then the weight of the boat is reduced and performance is improved, but the water sloshes around during high-speed travel and rough seas causing turbulence that harms the fish
Solution Approach 1:
The livewell system dynamically adjusts water level based on operating conditions. A controller monitors boat speed and automatically increases water level when high speed is detected, reducing turbulence while minimizing weight penalty during low-speed operation. This dynamic adaptation resolves the contradiction between weight reduction and turbulence prevention.
Solution Approach 2:
The system changes the physical parameter of water volume in the livewell based on operational needs. By increasing water volume from partial to near-full capacity during high-speed travel, the system alters the fluid dynamics to reduce sloshing and turbulence, thereby protecting fish while managing the weight-tradeoff through conditional parameter adjustment.
2Reliability
If water is added to the livewell to prevent overflow and maintain fish health, then fish survival is improved, but the added weight reduces boat performance
Solution Approach 1:
The system dynamically adjusts water level based on operational conditions. During high-speed travel or rough seas, the controller increases water level to near-full capacity to prevent overflow and maintain fish survival. During calm, low-speed operation, water level is reduced to minimize weight, thus resolving the contradiction between fish survival and boat performance through conditional adaptation.
Solution Approach 2:
The system performs preliminary action by proactively increasing water level in the livewell before fish mortality can occur. The controller detects conditions that may lead to overflow or turbulence and preemptively adjusts water volume to prevent harm, ensuring fish survival while minimizing weight penalty by only adding water when necessary.
3Object-affected harmful factors
If the livewell is kept near full during high-speed travel, then water turbulence is reduced and fish health is maintained, but the boat carries excessive weight reducing performance
Solution Approach 1:
The livewell system dynamically adjusts water level based on real-time operational conditions. During high-speed travel or rough seas, the controller increases water level to near-full capacity to suppress turbulence and protect fish. During calm, low-speed operation, water level is reduced to minimize weight, thus resolving the contradiction between turbulence reduction and weight management through adaptive control.
Solution Approach 2:
The system changes the physical parameter of water volume in the livewell based on operational parameters such as boat speed and sea state. By increasing water volume during high-speed operation, the system alters fluid dynamics to reduce sloshing and turbulence. During low-speed operation, water volume is reduced to minimize weight, resolving the contradiction through conditional parameter adjustment.
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
This solution helps maintain the health of fish by reducing turbulence and overflow issues, while also optimizing boat performance by adjusting the water level based on speed and distance, thereby ensuring fish survival and efficient boat operation.
Implementation Method 1
a water level sensor and a fluid level control unit electrically communicate with a water supply pump to allow the livewell to maintain either the partial level or the full water level
Implementation Method 2
An overflow valve can function in an open configuration to allow water to discharge from the livewell to maintain a partially full water level in the reservoir tank
Implementation Method 3
a one-way valve prevents water from back-flowing through the livewell and therefore being discharged from the livewell
Implementation Method 4
The water supply pump is operable to add water into the reservoir tank
Data Source
AI summary
Some fishing boats include a livewell system. This document describes livewell systems that have multiple modes of operation. The modes of operation include, at least, a first mode with a lower water level and a second mode with a higher water level. While the livewell is operating in the second mode, the tank is nearly full of water. Accordingly, with a nearly full tank, the water in the livewell will resist sloshing around while the boat is navigating rough seas or travelling at high speeds or for long distances. Moreover, the health of the fish in the livewell will be protected because of the water's lessened tendency to slosh around in the livewell.