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Skin friction acts on the component of _________

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+1 vote
in Fluid Mechanics by (118k points)
Skin friction acts on the component of _________

(a) Profile drag

(b) Surface blade

(c) Vane angles

(d) Parallel movement

The question was posed to me in an international level competition.

I would like to ask this question from Drag on a Sphere in chapter Boundary Layer Flow & Forces on Sub-merged Bodies of Fluid Mechanics

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Best answer
Right option is (a) Profile drag

To explain: Skin friction acts on the component of profile drag. Pressure drag is also called as form drag. It mainly arises because of the shape of the object. Thus, the correct answer is profile drag.

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