Flow-Conducting Component Contour Design Using Segmented Triangulation
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Solution Overview
Problem
Existing flow-guiding components, such as tube bends, face challenges in efficiently changing the direction of flow with minimal energy loss and simple manufacturing, as conventional designs often result in abrupt changes leading to flow disturbances and increased production complexity.
Innovation Solution
A geometric configuration method using a contour constructed from triangles, where the flow direction is established, and intersecting lines create a series of points defining the envelope, allowing for a smooth, energy-saving change of direction with reduced manufacturing effort, and optionally incorporating vanes to further minimize flow losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a circular arc section is used for flow direction change, then the flow transition is smooth, but the manufacturing complexity increases
Solution Approach 1:
The continuous curved contour is segmented into multiple straight line sections connected at specific angles (45°, 22.5°, 12.25°). This segmentation allows the complex smooth transition to be approximated by simpler linear segments that are easier to manufacture while maintaining the energy-saving flow characteristics.
Solution Approach 2:
The invention uses a carefully designed curved envelope formed by the sequence of straight lines to approximate a smooth circular arc transition. The specific angular progression (45°→22.5°→12.25°) creates an envelope that mimics the beneficial flow properties of a circular arc while using simpler linear construction elements.
2Loss of energy
If a continuous radius profile is used for flow direction change, then flow losses are reduced, but the manufacturing complexity increases significantly
Solution Approach 1:
The continuous radius profile is divided into discrete angular segments (45°, 22.5°, 12.25°) that can be manufactured using standard angular positioning and linear cutting operations, significantly simplifying the manufacturing process while preserving the energy-efficient flow transition.
Solution Approach 2:
The invention changes the parameter representation from a continuous variable (radius) to a discrete sequence of angular parameters (45°, 22.5°, 12.25°). This parameter transformation maintains the smooth transition effect while enabling simpler manufacturing through standardized angular measurements and linear segments.
3Ease of manufacture
If conventional tube bends are used, then manufacturing is simple, but flow disturbances and energy losses increase
Solution Approach 1:
The invention introduces a curved envelope formed by sequentially connected straight lines at decreasing angles (45°→22.5°→12.25°). This creates a smooth transitional path for the flow that reduces disturbances and energy losses, while the underlying construction remains based on simple linear segments that are easy to manufacture.
Data Source
AI summary
A method for geometrically designing a flow-conducting component, and a corresponding flow-conducting component, are provided. The flow-conducting includes a flow direction-changing surface arranged to change the direction of a flow by a certain angle from an inflow direction in a first section to an outflow direction in a second section, the flow direction-changing surface being formed corresponding to a contour of line segments having formed based on dependent triangulation between a bisector of the certain angle and sides of the first and/or second sections.