Question

What is meant by drag? What are the ways to minimise it?​

Answer 1

Explanation:

Drag reduction is the process of reducing the pressure drop from friction in a pipeline by continuously injecting a very small quantity (in parts per million or ppm) of a high molecular weight hydrocarbon, called the drag reduction agent (DRA) into the flowing liquid stream.

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Answer 2

Answer:

Drag Reduction. Drag reduction is the process of reducing the pressure drop from friction in a pipeline by continuously injecting a very small quantity (in parts per million or ppm) of a high molecular weight hydrocarbon, called the drag reduction agent (DRA) into the flowing liquid stream.

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