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(Solved): following dimensionless groups were obtained 0=f((F)/(\rho U^(2)L^(2)),(\mu )/(\rho UL),(gL)/(U^(2)) ...
following dimensionless groups were obtained
0=f((F)/(\rho U^(2)L^(2)),(\mu )/(\rho UL),(gL)/(U^(2)))
To assess the performance of a prototype ship, a model ship with a length scale of 1:45 was used in a towing tank of a hydraulic laboratory. For the model ship, a drag force of 0.3 N was found when towed with a speed of 1.1(m)/(s).
Considering that the same fluids are used in model and prototype, answer the following questions (provide your answer to two decimal places):
What is the speed of the prototype ship in an open surface flow.
(1)/(s)
Using the dimensionless group that represents the drag force, estimate the drag force on the prototype ship.
«N
Estimate the power required to propel the prototype ship.