The drag force on a boat hull, Fp, is known to be a function of the hull length, L, its velocity, V, the properties of the fluid in which it is floating (density, p), and the acceleration due to gravity, g. g (a) For Fp = f(V,g,L,p), and using V,L,p as repeating variables, determine the non-dimensional parameters for this problem. (b) Tests are to be done in a water tank with a 1:12 scale model. At what velocity should the model be towed to simulate a full-scale speed of 10 m/s? (e) If the model drag is found to be 400 N what is the full-scale drag?
The drag force on a boat hull, Fp, is known to be a function of the hull length, L, its velocity, V, the properties of the fluid in which it is floating (density, p), and the acceleration due to gravity, g. g (a) For Fp = f(V,g,L,p), and using V,L,p as repeating variables, determine the non-dimensional parameters for this problem. (b) Tests are to be done in a water tank with a 1:12 scale model. At what velocity should the model be towed to simulate a full-scale speed of 10 m/s? (e) If the model drag is found to be 400 N what is the full-scale drag?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The drag force on a boat hull, F,, is known to be
a function of the hull length, L, its velocity, V, the properties
of the fluid in which it is floating (density, p), and the
acceleration due to gravity, g.
(a) For Fp = f(V,g,L,p), and using V, L, p as repeating
variables, determine the non-dimensional parameters for
this problem.
(b) Tests are to be done in a water tank with a 1:12 scale
model. At what velocity should the model be towed to simulate a full-scale speed of 10
m/s?
(c) If the model drag is found to be 400 N, what is the full-scale drag?
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