An Attack Submarine in the Deep Sea
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A 1:10 scale model of an attack submarine is being tested
in a water tunnel. The drag force
ratio the submarine in the deep sea and the submarine model in the
tunnel need to be estimated. The submarine cruises at 4 m/s
in seawater (viscosity, μ =
and density, ρ = 1,030 kg/m3).
The fresh water in the tunnel is maintained at a temperature of 40 oC.