New Numerical and Measurements Flow Analyses Near Radars

An experimental and numerical investigation of the flow near a blunt body has been conducted in this study. Most experimental methods of flow studies use flow visualization and probes introduction into the flow field. The main goal of this research was the development of a new methodology to analyze...

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Bibliographic Details
Published in:Applied Mechanics Vol. 2; no. 2; pp. 303 - 330
Main Authors: Salinas, Manuel Flores, Botez, Ruxandra Mihaela, Gauthier, Guy
Format: Journal Article
Language:English
Published: Zwijnaarde MDPI AG 01.06.2021
Subjects:
blunt body
CFD model verification and validation
Flight simulation
flow analysis
flow characteristics
Flow velocity
Laboratories
Pressure distribution
Radar
Shear strain
Surveillance
Turbulence models
turbulence reduction
Vortices
wind tunnel model
ISSN:2673-3161, 2673-3161
Online Access:Get full text
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Summary:An experimental and numerical investigation of the flow near a blunt body has been conducted in this study. Most experimental methods of flow studies use flow visualization and probes introduction into the flow field. The main goal of this research was the development of a new methodology to analyze flows, and to measure flow characteristics without taking into account the distorting effects of measuring probes. A series of experiments were performed on a ground surveillance radar in the Price-Païdoussis subsonic wind tunnel. Forces and moments were measured as functions of wind speeds and angular positions by the use of a six-component aerodynamic scale. A Computational Fluid Dynamics three-dimensional model was employed to analyze the wake region of the ground surveillance radar. A turbulence reduction system was proposed and analyzed in this research. The use of the proposed turbulence reduction system was found to be an effective way to reduce turbulent flow intensity by 50%, drag coefficients by 9.6%, and delay the flow transition point by 7.6 times.
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ISSN:2673-3161
2673-3161
DOI:10.3390/applmech2020019