Drag co-efficient for flow past immersed body is the ratio of _____________ to the product of velocity head and density?
Correct answer: C. Average drag per unit projected area
- A. Shear stress
- B. Shear force
- C. Average drag per unit projected area
- D. None of these
Explanation
The drag coefficient is Cd = drag force divided by dynamic pressure times projected area. Equivalently, it is the average drag per unit projected area divided by the velocity head multiplied by density, making option c correct.
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