Multi-Directional Fluid Flow Heat Transfer Apparatus
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Solution Overview
Problem
Current heat transfer technologies face limitations in maximizing heat transfer rates from heat sources to fluid flows, particularly due to the dominance of laminar flow conditions which hinder efficient heat exchange.
Innovation Solution
The implementation of a multi-directional fluid flow system, utilizing a combination of bulk airflow, agitator assemblies, and synthetic jet assemblies to induce turbulent flow conditions by driving fluid in non-parallel directions, thereby interfering with laminar flow and enhancing heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If laminar flow conditions are maintained over the heat transfer surface, then the flow remains stable and predictable, but the heat transfer rate is reduced
Solution Approach 1:
The patent applies the dynamics principle by transitioning from static laminar flow to dynamic turbulent flow. Multiple fluid drivers create time-varying, multi-directional flow patterns that disrupt the stable laminar boundary layer, generating turbulence that enhances heat transfer coefficients and overall heat transfer rate from the heat sink to the fluid
Solution Approach 2:
The patent implements another dimension by introducing multi-directional fluid flow components. Instead of single-direction flow, three or more fluid drivers create flow vectors in different directions (e.g., axial, radial, and tangential components), adding dimensional complexity to the flow field over the heat transfer surface, which promotes turbulent mixing and enhances heat transfer
2Productivity
If multiple fluid drivers are used to create turbulent flow, then heat transfer rate increases, but device complexity increases
Solution Approach 1:
The patent applies merging by combining multiple fluid driver functions into an integrated system. The first, second, and third fluid drivers work together in a coordinated manner, with their flow outputs merging over the heat transfer surface to create a synergistic turbulent flow field that achieves enhanced heat transfer while managing system complexity through functional integration
Solution Approach 2:
The patent implements universality by designing fluid drivers that can serve multiple functions. The same fluid drivers that move coolant through the system also serve to generate turbulence and enhance heat transfer, eliminating the need for separate agitation mechanisms and reducing overall device complexity while maintaining heat transfer enhancement benefits
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 approach significantly increases heat transfer rates by reducing laminar flow conditions, leading to improved cooling efficiency across heat transfer surfaces.
Implementation Method 1
Turbulent flow generally results in a higher heat transfer rate than laminar flow
Implementation Method 2
A surface exchanges heat from a heat source to a fluid
Data Source
AI summary
A method is provided for heat transfer from a surface to a fluid. The method includes directing a first fluid flow towards the surface in a first direction and directing a second fluid flow towards the surface in a second direction. The first and second fluid flows cooperate to cool the surface.