Fluid Sensing Device Coanda Effect Angular Flow
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Solution Overview
Problem
Existing fluid flow sensor systems face challenges in accurately measuring fluid flow velocity and other parameters at high/low velocities and indirect angular flows, particularly in dynamic environments like aircraft or marine craft, due to the need for multiple sensors and complex compensation calculations, leading to increased cost and complexity, as well as inaccuracy in estimating local wind velocity.
Innovation Solution
A fluid sensing device and method that utilizes an outer and inner body configuration to induce the Coanda effect, allowing for accurate measurement of fluid flow velocity and other parameters by positioning sensors to capture fluid at an angle, enabling simultaneous measurement of total temperature and pressure, and incorporating a power compartment for self-sustenance and reduced error through enhanced fluid intake and processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are used to measure fluid flow parameters at high/low velocities and angular flows, then measurement coverage and accuracy are improved, but device complexity and cost increase
Solution Approach 1:
The patent applies multi-functionality by integrating multiple sensing capabilities within a single sensor device. The sensor simultaneously measures fluid flow velocity, direction, and other parameters using a unified structure rather than requiring separate sensors for each measurement, thereby reducing device complexity while maintaining measurement precision across various flow conditions including high/low velocities and angular flows
Solution Approach 2:
The patent merges multiple sensing functions into a single integrated sensor unit. By combining velocity sensing, direction sensing, and other measurement capabilities in one device, the patent eliminates the need for multiple separate sensors and complex compensation calculations, directly resolving the contradiction between measurement accuracy and device complexity
2Measurement precision
If multiple sensors positioned at separate locations are used, then comprehensive fluid parameter measurement is achieved, but the readings are not common to a localized area and are not simultaneous
Solution Approach 1:
The patent merges multiple sensing elements into a single localized sensor unit that provides simultaneous measurements of fluid parameters at one location. This unified approach ensures all measurements are common to the same localized area and occur simultaneously, eliminating the spatial and temporal separation issues inherent in using multiple distributed sensors
3Measurement precision
If complex compensation calculations are performed to interpret separate sensor readings, then angular flow errors are compensated, but processing time and computational requirements increase
Solution Approach 1:
The patent extracts and eliminates the need for complex compensation calculations by designing a sensor that directly measures fluid parameters without requiring post-processing compensation for angular flows. The sensor architecture inherently captures accurate measurements across various flow angles, removing the time-consuming computational compensation step while maintaining measurement precision
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
The solution provides accurate and simultaneous measurements of fluid flow parameters at high/low velocities and angularities, reducing measurement errors and the need for multiple sensors, while also offering self-sustenance and improved thermal management, enhancing the reliability and efficiency of fluid flow monitoring in dynamic environments.
Implementation Method 1
the inner body is configured to induce the Coanda effect in at least a portion of a fluid contacting the inner body at an angle transverse to a longitudinal axis of the inner body
Data Source
AI summary
A fluid sensing device includes an outer body, an inner body coupled to the outer body by one or more inner body support struts and extending at least partially out from the outer body, and an aft body disposed at least partially within the outer body at a location aft of the inner body, the aft body being coupled to the outer body by one or more aft body support struts. The inner body includes a hollow interior for housing one or more inner body sensors, and the aft body houses one or more aft body sensors. The fluid sensing device can measure one or more parameters of fluid flow at high angularity, such as total temperature and total pressure, locally and simultaneously, allowing additional fluid parameters, such as local entropy, to be calculated.