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(Solved): A drag force of 2.3 N was recorded on a model of a circular cross-section, 100 mm in diameter, when ...
A drag force of 2.3 N was recorded on a model of a circular cross-section, 100 mm in diameter, when tested in an air tunnel. The pressure difference between the free stream static pressure and the stagnation pressure was recorded as 35 mm H?O on the pitot-static tube. Calculate the following:
i. The velocity of the air stream
ii. The theoretical drag force
iii. The drag coefficient of the model A drag force of 2.3 N was recorded on a model of a circular cross-section, 100 mm in
diameter, when tested in an air tunnel. The pressure difference between the free stream
static pressure and the stagnation pressure was recorded as 35mmH_(2)O on the pitot-
static tube. Calculate the following:
i. The velocity of the air stream
ii. The theoretical drag force
iii. The drag coefficient of the model
(12 marks)
Take the density of air as 1.23k(g)/(m^(3)) and density of water as 1000k(g)/(m^(3)).