Herringbone Fluid Guiding Structure for Lower Rear Pressure Drop
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Solution Overview
Problem
Conventional herringbone-type fluid guiding units experience a pressure drop in fluid flow at the rear end due to uniform angles, reducing the coagulation rate of cells or fine particles.
Innovation Solution
The herringbone-type fluid guiding unit is designed with a front member that increases in width rearward and a rear member with a recessed or protruding part, forming an angle at the front end greater than the rear end, to minimize pressure drop and enhance recovery efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If uniform angles are used in the herringbone pattern, then manufacturing is simplified, but pressure drop occurs in fluid flow at the rear end
Solution Approach 1:
The patent applies asymmetry by making the herringbone pattern angles non-uniform, specifically setting the front angle (α1) greater than the rear angle (α2). This asymmetric design resolves the technical contradiction by optimizing fluid flow characteristics to reduce pressure drop at the rear end while maintaining manufacturing feasibility through defined geometric parameters.
Solution Approach 2:
The patent applies local quality by varying the herringbone pattern angles at different locations along the flow path. The front portion has a larger angle (α1) while the rear portion has a smaller angle (α2), allowing each section to be optimized for its specific function in guiding cells and reducing pressure drop, rather than using a uniform angle throughout.
2Device complexity
If uniform angles are used in the herringbone pattern, then structural simplicity is maintained, but cell coagulation rate is reduced
Solution Approach 1:
The asymmetric angle design (α1 > α2) enhances cell coagulation rate by creating more effective flow disturbances and mixing patterns in the rear section where cells need to coagulate, while the front section with larger angle facilitates initial cell guidance. This resolves the contradiction between pattern complexity and productivity.
Solution Approach 2:
By assigning different angles to different sections, the patent creates localized flow characteristics that optimize cell coagulation in the rear portion while maintaining guidance function in the front portion, thereby improving overall productivity without excessive complexity.
3Manufacturing precision
If the herringbone pattern guides cells to one side, then separation is achieved, but pressure drop increases in the rear part
Solution Approach 1:
The asymmetric angle configuration (α1 > α2) resolves the contradiction by using the front larger angle for effective cell separation and guidance to one side, while the rear smaller angle reduces flow resistance and pressure drop, allowing separation precision to be maintained with reduced pressure loss.
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 design reduces pressure drop in the rear part, improving the recovery efficiency of cells or fine particles by guiding them effectively to the discharge path.
Implementation Method 1
a herringbone-type fluid guiding unit which is provided on a flow path through which a fluid flows and guides cells or fine particles contained in the fluid to one side by interfering with the fluid
Data Source
AI summary
The present disclosure relates to a herringbone-type fluid guiding unit and an apparatus for concentrating fluid using same. The herring-bone type fluid guiding unit includes: a front member formed on a flow path and formed so that the width between the left side and the right side widens from a front end part toward the back, with respect to the flow direction of a fluid; and a rear member extending from the front member toward the back, wherein the rear member is provided with a recessed part that is recessed to a specific depth from the rear edge toward the front or with a protruding part that protrudes toward the back.