Experimental Analysis of the Flow Over a Commercial Vehicle - Pickup

Almeida, Odenir de; Pinto, Wagner J.; Rosa, Samara Cunha

doi:10.15866/ireme.v11i8.11401

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“…Boundary layer (BL) profiles are gathered with home-built BL mouse. Very low speed flows (low Reynolds numbers) are tested in this WT encountering applications such as low speed foils, flow over simplified vehicles and bodies, as well as fundamental fluid dynamics research [5], [6], [7] and [8].…”

Section: Fig 1: Tv-60 With Pressure Module Apparatusmentioning

confidence: 99%

“…Activities in the construction of new and detailed models of cars such as pickups and sedans, with reference to the automobile market in Brazil, as well as physical and numerical tests have been conducted recently.Although the tests are conducted at relatively low Reynolds numbers of 5  10 5 (compared to the real scale), these tests serve to verify construction techniques, speed and pressure measurement approaches, as well as to establish methodological analysis criteria for tests on larger models. In addition, it is possible to establish correlations between the results obtained in low Reynolds with the numerical results collected in simulations with higher Reynolds numbers (simulating the real case).One of the first works wasthe analysis of the flow around pickup trucks [5], depicted by Fig. 12.…”

Section: Fig 11:flow Visualization From China Clay Technique -mentioning

confidence: 99%

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The development of an experimental aerodynamics research center in Brazil

Almeida¹

2021

IJAERS

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The present work describes the recent activities of the Experimental Aerodynamics Research Center (CPAERO) concerning all the efforts devoted to develop capacities on both experimental and numerical aerodynamic and aeroacoustic techniques applied for solving fundamental and industrial flows.Despite the low investment of resources by the Brazilian government and ruptures in institutional policies in the last decade, over the past 05 years it has been possible to build a mediumsize low-speed subsonic wind tunnel and acquire, as well as design and build, various apparatus for laboratory and open field studies.The main activities are developed in the sectors of aeronautical, automobile and alternative energy sources such as wind energy. However, other applications are under development in fields such as fluid-structure interaction, drone noise and calibration of wind tunnels and anemometric sensors.To support the experimental studies, special attention was given to computational aerodynamics through the use of open source codes for the design of airfoils, wings and more complex flow-body simulations in computational fluid dynamics (CFD).Growing interface with local and national companies is taking place, as well as research partners with other universities and research centers. Some results are presented for unconventional aircraft analyses, commercial vehicles such as sedan and pick-up's aerodynamics, flow over cylinders with different aspect ratios as well as experimental and numerical data for finite-height surface-mounted cylinders. Recent and new approaches are provided for designing biomimetic blades for small-scale horizontal axis wind turbine (HAWT). Aeroacoustics numerical data is also compared with experimental data for subsonic jets at free-stream and cross-flow conditions showing the flexibility of tools and capabilities at CPAERO. However, there has been a progressive advance of numerical methods through CFD (Computational Fluid Dynamics) in the last 4 decades, which has changed the

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Section: Fig 1: Tv-60 With Pressure Module Apparatusmentioning

confidence: 99%

Section: Fig 11:flow Visualization From China Clay Technique -mentioning

confidence: 99%