Hyperboloid Duct for Uniform Flow Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In systems managing gas or liquid flows, particularly in vehicles, changing the direction of flow can lead to uneven distribution due to space constraints, causing a 'jetting' effect where flow is not evenly distributed across components like catalytic converters.
Innovation Solution
A flow management device with an outer chamber and a duct that increases in cross-sectional area from one end to the other, allowing for a significant change in flow direction without disrupting the flow, ensuring even distribution across the outlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the flow direction is changed to satisfy packaging requirements, then space constraints are met, but the flow distribution becomes uneven causing jetting effect
Solution Approach 1:
The duct is designed with a curved, hyperboloid shape instead of straight linear transitions. This curvature allows the flow to gradually change direction while maintaining even distribution across the catalyst brick, preventing jetting effects while satisfying the required flow direction change for packaging purposes.
Solution Approach 2:
The cross-sectional area of the duct is varied along its length, being larger at the ends and smaller in the middle. This parameter change optimizes flow distribution by compensating for the directional change, ensuring uniform flow across the catalyst surface while achieving the necessary angle change for compact packaging.
2Volume of moving object
If a conventional duct is used to change flow direction, then packaging space is reduced, but flow regularity is disrupted
Solution Approach 1:
The hyperboloid-shaped duct provides smooth curved transitions that maintain flow regularity while achieving compact packaging. The curved geometry prevents flow separation and jetting that would occur with sharp angular transitions, ensuring reliable and consistent flow performance in a compact configuration.
Solution Approach 2:
The duct design utilizes three-dimensional curvature rather than simple planar bends. By employing a hyperboloid shape with varying cross-sectional areas in multiple dimensions, the design achieves both compactness and flow regularity that cannot be obtained with conventional two-dimensional bend configurations.
Data Source
AI summary
A flow management device comprises an outer chamber with an inlet arranged to receive a flow in a first flow direction and an outlet arranged to provide the flow in a second flow direction different from the first direction, and a duct arranged within the chamber, the duct having a first end configured to receive the flow from the inlet and a second end configured to release the flow towards the outlet, wherein a cross-sectional area of the duct increases towards each of the first and second ends of the duct.