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Um vertedor deverá ser instalado, lateralmente a um canal, com o objetivo de desviar parte da vazão para um reservatório de amortecimento de cheias...

Um vertedor deverá ser instalado, lateralmente a um canal, com o objetivo de desviar parte da vazão para um reservatório de amortecimento de cheias. O canal é retangular com altura de água de 1,20m, largura de 2,5m e vazão de projeto de 8,0m³/s. A soleira deverá estar a 0,40m do fundo do canal. Um estudo prévio mostrou que, ao verter a vazão desejada para fora do canal, a altura da água ao final do vertedor será 1,30m. Desprezando a perda de carga, dimensione a largura da soleira.


50cm
70cm
1,0m
1,2m
1,5m

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ENGENHARIA HIDRÁULICA - Estruturas Hidráulicas e Hidrometria VERIFICANDO APRENDIZADO 2 2
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Fundamentos da Engenharia Hidráulica Universidade Estácio de SáUniversidade Estácio de Sá

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Para dimensionar a largura da soleira do vertedor, podemos utilizar a equação de vazão para vertedores retangulares: Q = C * L * H^(3/2) Onde: Q = vazão (8,0 m³/s) C = coeficiente de descarga (que pode ser assumido como 0,61 para vertedores retangulares) L = largura da soleira (a ser determinada) H = altura da água sobre a soleira (1,30 m - 0,40 m = 0,90 m) Substituindo os valores na equação, temos: 8,0 = 0,61 * L * 0,90^(3/2) Simplificando a equação: 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * L * 0,90^(3/2) 8,0 = 0,61 * 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