SR13  Mecânica dos Fluidos    Titulo: INFLUÊNCIA DO ÂNGULO DE ATAQUE SOBRE O NÚMERO DE STROUHAL DE CILINDROS COM SEÇÃO TRANSVERSAL QUADRADA   Resumo : 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.    Autores : Lindquist, Cláudio 0 Mansur, Sérgio Said Vieira, Edson Del Rio     Trabalho Completo :   COBEM99 | Comissão  Organizadora | Palestras | Sessões Técnicas | Autor | Simpósios e Sessões Especiais | Revisores |  Título  dos  Trabalhos | Local