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SR13 Mecânica dos Fluidos |
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Title:
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INFLUÊNCIA DO ÂNGULO DE ATAQUE SOBRE O NÚMERO DE STROUHAL DE CILINDROS COM SEÇÃO TRANSVERSAL QUADRADA
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Summary :
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ABSTRACT. THIS WORK PRESENTS AN EXPERIMENTAL STUDY OF THE FLOW AROUND A SQUARE SECTION CYLINDER, PLACED NORMALLY TO THE FREE STREAM. SPECIFICALLY, IT HAS BEEN INVESTIGATED THE INFLUENCE OF THE INCIDENCE ANGLE ON THE STROUHAL NUMBER FOR REYNOLDS NUMBERS UP TO 500. THE INCIDENCE ANGLE HAS BEEN VARIED FROM 0 TO 45 DEGREES. THE TESTS HAVE BEEN CONDUCTED IN A VERTICAL WATER TUNNEL, DRIVEN BY THE GRAVITATIONAL ACTION. THE STROUHAL NUMBER HAS BEEN DETERMINED FROM VELOCITY MEASUREMENTS IN THE CYLINDER WAKE USING HOT-FILM ANEMOMETRY. THE PRESENT RESULTS HAVE BEEN COMPARED WITH THE LITERATURE AND, IN SOME CASES, WITH QUANTITATIVE INFORMATION TAKEN FROM VISUALIZATION TECHNIQUES AND IMAGE ANALYSIS.
KEYWORDS: SQUARE CYLINDER, INCIDENCE ANGLE, STROUHAL NUMBER, HOT-FILM ANEMOMETRY, FLOW VISUALIZATION. |
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Author :
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Lindquist, Cláudio 0
Mansur, Sérgio Said
Vieira, Edson Del Rio
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Paper View :
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