Question #126774

consider a cylinder of a square section 10cm side which strouhal number is about 0.13 it has mass of 1 kgand mounted on a spring of stiffness 1 N/m give value of flow velocity at which viv occur in m/s

Expert's answer

"Sr=\\frac{f\\cdot l}{v}"

"f=\\frac{1}{2\\pi\\sqrt{m\/k}}=\\frac{1}{2\\pi\\sqrt{1\/1}}=0.16Hz"

"v=\\frac{f\\cdot l}{Sr}=\\frac{0.16\\cdot 0.1}{0.13}=0.12m\/s"

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