Save Answer The frequency of shedding of vortices from a body owing to the flow of fluid past it depends on the length-scale of the body, the speed of the fluid flow, and the density and viscosity of the fluid. A strut for a traffic light gantry is being designed and the typical expected frequency of vortex shedding needs to be estimated. For this, a wind tunnel model is made whose size is 0.38 of the full-scale strut. The density of air in the wind tunnel is expected to be the same as for the air passing the full-scale strut, but the viscosity will be 0.95 that for the air passing the full-scale A strut. When the measured vortex shedding frequency for the model strut in the wind tunnel is measured to be 28Hz, what is the expected vortex shedding frequency for the full- size strut? Give your answer in Hz to one decimal place.