Question

What is drag? How is it related to the thickness of fluid?​

Answer 1

Answer:-

• Drag is a kind of frictional force exerted by fluid which opposes the motion of an object through that fluid. Drag force acts in direction opposite to the direction of motion of the object.
• Skin friction drag is often the major component of parasitic drag on objects in a flow. The flow over a body may begin as laminar. As a fluid flows over a surface shear stresses within the fluid slow additional fluid particles causing the boundary layer to grow in thickness.

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