Kinetic Theory CFD for Jet-Effect Airfoil Optimization
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Solution Overview
Problem
Current methods for analyzing and designing systems that utilize the jet-effect, such as the Coanda-jet-effect and electromagnetic jet-effect, are limited by their reliance on continuum mechanics, which fails to accurately account for molecular interactions and thermodynamic parameters, leading to inefficiencies and paradoxical results in fluid motion and energy conversion.
Innovation Solution
A novel approach using computational fluid dynamics based on the kinetic theory of matter, which defines fluid static pressure, temperature, and flow velocity in terms of molecular motion, allowing for specific airfoil shaping and hydrophobic surface designs that enhance the jet-effect by transforming internal heat energy into kinetic energy through the Coanda-jet-effect and constructive interference of waves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuum mechanics is used to analyze jet-effect systems, then the analysis framework is simple and established, but the accuracy of molecular interactions and thermodynamic parameters is insufficient
Solution Approach 1:
The patent transitions from continuum mechanics parameters to kinetic theory parameters, fundamentally changing the parameter set used to describe fluid behavior. This includes using molecular velocity distributions and collision frequencies instead of continuous velocity fields, thereby achieving higher accuracy in molecular interactions while accepting increased computational complexity
Solution Approach 2:
The patent replaces the continuum mechanics framework with a kinetic theory of matter framework. This substitution allows for more accurate modeling of molecular-level phenomena and thermodynamic parameters by treating the fluid as discrete molecules rather than a continuous medium
2Productivity
If conventional airfoil profiles are used, then the design is simple and well-established, but the jet-effect utilization is insufficient
Solution Approach 1:
The patent applies local quality by creating airfoil profiles with specifically optimized surface geometries at different locations to enhance jet-effect. The airfoil surface is designed with varying curvature and texture characteristics at different regions to maximize Coanda-effect and de Laval effect utilization, thereby improving overall efficiency while maintaining a manageable design complexity
Solution Approach 2:
The patent introduces dynamic characteristics to airfoil profiles, allowing the geometry to adapt or vary in response to flow conditions. This may include flexible surfaces or adjustable components that optimize jet-effect utilization under different operating conditions, balancing productivity improvement with controlled complexity
3Power
If conventional nozzle designs are used, then the manufacturing is simple, but the conversion of internal heat energy to kinetic energy is inefficient
Solution Approach 1:
The patent optimizes nozzle design parameters including convergence angle, throat geometry, and divergence profile to maximize the conversion of internal heat energy to kinetic energy. By carefully controlling these geometric parameters, the design achieves superior energy conversion efficiency while remaining manufacturable using conventional techniques
Solution Approach 2:
The patent incorporates preliminary heating or pre-conditioning sections in the nozzle design that prepare the fluid for optimal expansion and acceleration. This preliminary action ensures that the main conversion section operates at peak efficiency, thereby improving overall power conversion while maintaining reasonable manufacturing complexity
4Use of energy by moving object
If standard fluid dynamics models are used, then the computational approach is straightforward, but the harvesting of energy from ambient heat is limited
Solution Approach 1:
The patent designs systems that automatically harvest energy from ambient heat through the jet-effect mechanisms, requiring minimal external control or input. The hydrophobic surfaces and airfoil geometries create self-sustaining flow patterns that continuously convert thermal energy to kinetic energy, improving energy utilization while keeping the control system simple despite complex computational requirements
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 method enables efficient energy conversion and enhanced fluid acceleration, reducing skin-friction and turbulence, and allows for the harvesting of energy from ambient heat, particularly in turbulent flows and compressible gases, facilitating electricity generation and wave power conversion.
Implementation Method 1
an accelerating headway motion of fluid portions, subjected to the Coanda-effect and/or the de Laval effect and/or the hydrophobic jet-effect
Implementation Method 2
an accelerating headway motion of fluid portions, subjected to the Coanda-effect and/or the de Laval effect
Implementation Method 3
an accelerating headway motion of fluid portions, subjected to the Coanda-effect and/or the de Laval effect and/or the hydrophobic jet-effect
Implementation Method 4
an intensified oscillating motion of fluid portions, subjected to the waving jet-effect resulting in constructive interference of acoustic waves
Data Source
AI summary
The invention provides a method for computational fluid dynamics and apparatuses making enable an efficient implementation and use of an enhanced jet-effect, either the Coanda-jet-effect, the hydrophobic jet-effect, or the waving-jet-effect, triggered by specifically shaped corpuses and tunnels. The method is based on the approaches of the kinetic theory of matter, thermodynamics, and continuum mechanics, providing generalized equations of fluid motion. The method is applicable for slow-flowing as well as fast-flowing real compressible-extendable fluids and enables optimal design of convergent-divergent nozzles, providing for the most efficient jet-thrust. The method can be applied to airfoil shape optimization for bodies flying separately and in a multi-stage cascaded sequence. The method enables apparatuses for electricity harvesting from the fluid heat-energy, providing a positive net-efficiency. The method enables efficient water-harvesting from air. The method enables generators for practical-expedient power harvesting using constructive interference of waves due to the waving jet-effect.